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Author SHA1 Message Date
Dai Ha 3b2f395d3d M4: fail tickets on terminal health states
CI / contract (pull_request) Successful in 44s
CI / build (pull_request) Successful in 57s
2026-08-15 06:32:02 +02:00
261 changed files with 9045 additions and 27757 deletions
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@@ -1,6 +1,6 @@
{
"name": "claude-bridge",
"description": "Tooling for orchestrating a fleet of delegated coding agents through the fleetd MCP gateway.",
"description": "Tooling for orchestrating a fleet of delegated coding agents through the bridged MCP gateway.",
"owner": {
"name": "LTMS"
},
@@ -8,7 +8,7 @@
{
"name": "claude-bridge",
"source": "./plugin",
"description": "Make a project bridge-ready: mount the fleetd MCP gateway and apply standard Claude Code settings so a session can orchestrate delegated workers. Ships no credentials.",
"description": "Make a project bridge-ready: mount the bridged MCP gateway and apply standard Claude Code settings so a session can orchestrate delegated workers. Ships no credentials.",
"version": "0.1.0",
"author": {
"name": "LTMS"
-24
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@@ -1,24 +0,0 @@
---
name: architect
description: Refine work into clear, independent units before implementation.
---
<!-- CB-617: The model comes from fleetd.yaml because the launch flag overrides model here on both backends. -->
You are an architect in this fleet. You refine work before anyone builds it: scope,
acceptance criteria, risks, and a unit split. You read the repo and write analysis.
You never commit production code and never open a pull request.
A design task is worked by two architects. Design alone first, then exchange and
say plainly where you disagree. Do not concede just to agree.
Do only the assigned scope. Note anything outside that scope in one line and do not
investigate it further. Use `fleet_ask{question}` only when a decision belongs to
the lead, such as an unclear requirement or two defensible fixes. Do not ask about
something you can decide by reading more code.
Report only work you actually did and the real output of checks you ran. Do not
claim a result from a tool you could not use. The primary's IDE tools are not yours.
A mounted forge tool may use a blocked credential and fail by design.
The launcher provides the required bridge reply instructions for every member.
-29
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@@ -1,29 +0,0 @@
---
name: dev
description: Implement one assigned unit, test it, and open a pull request.
---
<!-- CB-617: The model comes from fleetd.yaml because the launch flag overrides model here on both backends. -->
You implement the one unit you were given and nothing else. Work in your assigned
git worktree and branch. Never check out, rebase onto, or push to `main`. Confirm
the worktree root and branch before you edit. Use only paths under that root.
Do only the assigned scope. Note anything outside that scope in one line and do not
investigate it further. Use `fleet_ask{question}` only when a decision belongs to
the lead, such as an unclear requirement or two defensible fixes. Do not ask about
something you can decide by reading more code.
Implement the change and run the full required build in your worktree. Read the
complete output and report its real result. Do not hide failures with a pipe. State
only checks you actually ran. The primary's IDE tools are not yours. A mounted forge
tool may use a blocked credential and fail by design.
Stage only files you changed. Never use `git add -A` or `git add .`. Never commit
`.mcp.json` or `wiki/`. Commit with a clear message, push your branch, and open your
own pull request against `main`. Never merge.
Your handoff must name the pull request or why it was not created, the branch, the
files changed, the build result, and any caveat for review.
The launcher provides the required bridge reply instructions for every member.
-34
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@@ -1,34 +0,0 @@
---
name: reviewer
description: Review one assigned scope and report the most important real issue.
---
<!-- CB-617: The model comes from fleetd.yaml because the launch flag overrides model here on both backends. -->
You review the diff you were given. Report bugs, risks, and missing tests. You do
not change code.
Read the whole assigned scope before judging it. Review only that scope. If you see
something outside it, note it in one line and do not investigate it further. Do not
run the build. The owner makes changes and runs checks.
Use `fleet_ask{question}` only when a decision belongs to the lead, such as an
unclear requirement or two defensible fixes. Do not ask about something you can
decide by reading more code.
Report the single most important real issue in this form:
```
1. <path>:<line>
2. issue: <one sentence: what is wrong and why it matters>
3. fix: <one line: the concrete change>
4. severity: high | medium | low
```
If there is no real issue, report `NO ISSUE` and one line saying why. A clean review
is valid. Do not invent an issue. Use high for a wrong result, data loss, security,
or a hang or crash on a real path. Use medium for an edge-path bug or a correctness
risk under load or concurrency. Use low for clarity, a latent foot-gun, or a smell
with no current failure.
The launcher provides the required bridge reply instructions for every member.
-274
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@@ -1,274 +0,0 @@
---
name: fleets-status
description: Report the status of every fleet that shares one LavinMQ instance. Use for local daemon health, broker-wide fleet presence, and cross-host lead coordination checks.
---
# Status of every fleet on the shared LavinMQ instance
**The headline: always report what is missing.** This skill starts with the local fleet, then adds
broker-wide facts when its read-only credential exists. A missing fleet must appear as `unknown` or
`not reachable`, with the reason and the fix. Never leave it out.
The known topology has one LavinMQ instance on `10.10.20.13` (`fleet01`). AMQP uses port `5672`,
and the management API uses port `15672`. The Mac fleet owns vhost `/mac`. The fleet01 fleet owns
vhost `/fleet01`.
## 1. Protect credentials before any probe
**Hard rule — never print `LAVINMQ_URI`.** It is an AMQP URI with its password inline. It only
resolves in a login shell because `${SHARED_ENV}/tools/secrets.sh` supplies it. A non-login shell
can make every broker probe look empty.
- Never run `echo "$LAVINMQ_URI"`.
- Never put `${LAVINMQ_URI:-something}` in output. That form expands to the secret value when set.
- Parse the user, host, and password into shell or Python variables. Use them without printing them.
- Prefer `resolves` or `does not resolve` over any part of the value.
- Every command that can read `LAVINMQ_URI` must send all output through this redaction before it
reaches the report:
```bash
sed -E 's#://[^@]*@#://<redacted>@#g'
```
**The `g` flag is not optional.** Without it `sed` replaces only the first match on each line, so a
line carrying two URIs leaks the second one. `scripts/redeploy-fleetd.sh --check` prints lines like
that. Checked on 2026-08-27: without `g`, `amqp://u1:p1@h1/mac and http://u2:p2@h2:15672/api`
redacts the first pair and prints `u2:p2` in the clear.
Keep `pipefail` on when applying that filter. Otherwise the filter can hide a failed probe. Apply
the same no-print rule to the management password below, even though it is not in an AMQP URI.
## 2. Tier 1 — this fleet (always run)
Start here even when the broker tier is blocked. Work from the local fleetd checkout.
First run the read-only deployment check. It already checks the daemon process, deployed jar versus
the checkout `HEAD`, launchd state, and whether each configured token resolves in a login shell.
Do not copy those checks into new shell code. The script reads `LAVINMQ_URI`, so redact all output:
```bash
set -o pipefail
scripts/redeploy-fleetd.sh --check 2>&1 \
| sed -E 's#://[^@]*@#://<redacted>@#g'
git rev-parse HEAD
```
Treat jar drift as a top-level warning. A merge is not a deployment. State the running jar result
as `matches HEAD`, `drift`, or `unknown`; do not turn an unclear timestamp into a match.
Report the process identifier (PID) and uptime too:
```bash
PIDS="$(pgrep -f 'target/fleetd.jar' || true)"
if [ -z "$PIDS" ]; then
printf '%s\n' 'fleetd: not running'
else
for PID in $PIDS; do
ps -p "$PID" -o pid=,etime=,lstart=,command=
done
fi
```
Read the full health response. Keep the HTTP status because `503` means fleetd is running but herdr
is not reachable. Report both `herdr.version` and `herdr.protocol` when present:
```bash
curl -sS --max-time 5 -w '\nHTTP %{http_code}\n' http://127.0.0.1:8765/healthz
```
Call `fleet_whoami`, then call `fleet_list`. Preserve its sections in the report:
- `leads`, including which row is this lead;
- `members`, including state, role, profile, branch, and worktree when present;
- every per-profile `capacity` row, including `maxLoad`, `live`, `free`, and quarantine facts;
- the exact `healthCoverage` value.
Do not describe an empty `members` list as an empty fleet. It says only that no members are spawned.
Also do not hide a profile with `free: 0`; say whether load or credential quarantine caused it.
Show only WARN, ERROR, and SEVERE lines after the last `fleetd listening` line. This anchor stops an
old incident from looking current:
```bash
python3 - <<'PY'
from pathlib import Path
import re
path = Path("fleetd/fleetd.out")
if not path.exists():
print("cannot check current WARN/ERROR: fleetd/fleetd.out does not exist")
else:
lines = path.read_text(errors="replace").splitlines()
starts = [i for i, line in enumerate(lines) if "fleetd listening" in line]
if not starts:
print("cannot anchor WARN/ERROR: no 'fleetd listening' line exists")
else:
current = lines[starts[-1]:]
alerts = [line for line in current if re.search(r"\b(?:WARN|ERROR|SEVERE)\b", line)]
print(f"current WARN/ERROR/SEVERE count: {len(alerts)}")
for line in alerts[-50:]:
print(line)
PY
```
**What this tier cannot see:** it proves facts only about the Mac daemon at `127.0.0.1:8765`.
It cannot show the fleet01 daemon, broker queue depth, or broker consumers. The fleet01 REST service
at `10.10.20.13:8765` is not reachable from the Mac. Say this in the report rather than omitting
fleet01.
**But fleet01 IS reachable over SSH — checked 2026-08-28.** An older version of this line said SSH
was denied. That is true only for the user `dai.ha`. The host alias `fleet01` maps to user `ltms`,
and `ssh fleet01` works with key auth:
```bash
ssh -o BatchMode=yes -o ConnectTimeout=6 fleet01 'echo $(id -un)@$(hostname)'
```
So fleet01's daemon PID, uptime, jar and `/healthz` **can** be reported — over SSH, not over REST.
Do that rather than writing `not reachable`. `ltms` also has passwordless sudo there.
## 3. Tier 2 — the shared broker (run when management access exists)
**This tier is blocked today.** The AMQP user in `LAVINMQ_URI` can connect on port `5672`, but gets
HTTP `401` from the management API on port `15672`. An AMQP connection does not grant monitoring
access.
The operator must create a separate, read-only LavinMQ management user with the `monitoring` tag.
It needs access to inspect both `/mac` and `/fleet01`. Store its values as
`LAVINMQ_MANAGEMENT_USER` and `LAVINMQ_MANAGEMENT_PASSWORD` in
`${SHARED_ENV}/tools/secrets.sh`. Do not reuse or print the AMQP URI. Full multi-fleet status stays
blocked until this user exists.
When both variables resolve, run this from a login shell. It calls `GET /api/overview`,
`GET /api/vhosts`, `GET /api/queues`, and `GET /api/connections`. It prints selected status fields,
but never the user, password, Authorization header, or AMQP URI:
```bash
zsh -lc 'python3 - "$@"' -- <<'PY'
import base64
import json
import os
import sys
import urllib.error
import urllib.request
base = "http://10.10.20.13:15672"
user = os.environ.get("LAVINMQ_MANAGEMENT_USER", "")
password = os.environ.get("LAVINMQ_MANAGEMENT_PASSWORD", "")
if not user or not password:
print("broker tier: BLOCKED — management credential does not resolve in a login shell")
sys.exit(0)
token = base64.b64encode(f"{user}:{password}".encode()).decode()
def get(path):
request = urllib.request.Request(
base + path,
headers={"Authorization": "Basic " + token, "Accept": "application/json"},
)
with urllib.request.urlopen(request, timeout=5) as response:
return json.load(response)
try:
overview = get("/api/overview")
vhosts = get("/api/vhosts")
queues = get("/api/queues")
connections = get("/api/connections")
except urllib.error.HTTPError as error:
print(f"broker tier: BLOCKED — management API returned HTTP {error.code}")
sys.exit(0)
except Exception as error:
print(f"broker tier: BLOCKED — management API is not reachable: {type(error).__name__}")
sys.exit(0)
fleet_names = {"/mac": "Mac fleet", "/fleet01": "fleet01 fleet"}
print(json.dumps({
"overview": {
"lavinmq_version": overview.get("lavinmq_version"),
"rabbitmq_version": overview.get("rabbitmq_version"),
"queue_totals": overview.get("queue_totals", {}),
"object_totals": overview.get("object_totals", {}),
},
"fleets": [
{
"fleet": fleet_names.get(vhost.get("name"), "UNKNOWN FLEET"),
"vhost": vhost.get("name"),
"queues": [
{
"name": queue.get("name"),
"messages": queue.get("messages", 0),
"messages_ready": queue.get("messages_ready", 0),
"messages_unacknowledged": queue.get("messages_unacknowledged", 0),
"consumers": queue.get("consumers", 0),
}
for queue in queues if queue.get("vhost") == vhost.get("name")
],
"connections": [
{
"name": connection.get("name"),
"peer_host": connection.get("peer_host"),
"state": connection.get("state"),
}
for connection in connections if connection.get("vhost") == vhost.get("name")
],
}
for vhost in vhosts
],
}, indent=2, sort_keys=True))
PY
```
Map `/mac` to the Mac fleet and `/fleet01` to the fleet01 fleet. Keep any other vhost in the
report as `UNKNOWN FLEET`; do not drop it. For each vhost, total the ready, unacknowledged, and all
messages. Report every queue's consumer count and each live connection.
**A vhost with queues but zero consumers means that fleet's daemon is down while its durable state
survives. Call this out as a top-level warning.** This is the main reason to use the management API
instead of calling each remote daemon.
**What this tier cannot see:** without the new `monitoring` credential it cannot enumerate any
vhost, queue, depth, consumer, or connection. With the credential it still cannot report fleet01's
daemon PID, uptime, jar revision, `/healthz`, herdr version, or member capacity. Those need reachable
fleet01 REST or SSH access, which the Mac does not have today.
## 4. Tier 3 — cross-fleet lead coordination
Use the queue data from Tier 2. Select queues whose names match `lead.<coordId>.inbox`. Report each
queue's vhost, depth, consumer count, and the `coordId` between the prefix and suffix.
- A lead inbox with a consumer shows that a lead mailbox is live on that vhost.
- A durable lead inbox with zero consumers shows saved coordination state, but no live receiver.
- No lead inbox is not proof that coordination is disabled. The daemon may be down before declaring
its queue, or this account may not be allowed to see the vhost.
This Mac fleet currently sets both `broker.uriEnv` and `coordinator.uriEnv` to the same variable,
`LAVINMQ_URI`. Therefore its coordinator connects to `/mac`. Cross-host `fleet_send{coordId}` routes
only when both leads share the same coordinator vhost. If the fleet01 lead uses `/fleet01` for its
coordinator, the leads cannot see each other and the send will not route.
**Open question:** the fleet01 coordinator vhost has not been checked. Surface this question in
every report until a live `lead.<coordId>.inbox` consumer or fleet01's config proves the answer. Do
not claim that fleet01 uses `/fleet01` just because its member queues do.
Also compare these broker facts with the `leads` rows from local `fleet_list`. A missing remote lead
is `not visible from this coordinator`, not `down`, unless the broker consumer facts prove it.
**What this tier cannot see:** without Tier 2 management access it cannot list lead inboxes or their
consumers. Even with that access, a stopped fleet01 daemon leaves only durable queue history. That
history cannot prove which coordinator URI its current config would use after restart.
## 5. Report all fleets
Use one row per known or discovered fleet. Include blocked rows.
| Fleet | Daemon | Deployment | Herdr | Members/capacity | Queues/consumers | Lead coordination | Cannot check |
|---|---|---|---|---|---|---|---|
| Mac (`/mac`) | PID + uptime | jar vs `HEAD` | health + version + protocol | `fleet_list` + `healthCoverage` | facts or blocked reason | inbox facts or open question | exact missing facts |
| fleet01 (`/fleet01`) | reachable/down/unknown | value or `not reachable` | value or `not reachable` | value or `not reachable` | facts or blocked reason | inbox facts plus coordinator-vhost question | exact missing facts and fix |
Add rows for unknown vhosts. End with three short sections: `Current warnings`, `Checks that were
blocked`, and `Operator action`. Until the management user exists, `Operator action` must say:
> Create a read-only LavinMQ management user with the `monitoring` tag and access to `/mac` and
> `/fleet01`. Put its user and password in `${SHARED_ENV}/tools/secrets.sh` as
> `LAVINMQ_MANAGEMENT_USER` and `LAVINMQ_MANAGEMENT_PASSWORD`.
+6 -6
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@@ -1,11 +1,11 @@
---
name: implementer
description: Implementer-role procedure for a fleetd worker — verify your worktree, implement the scope, commit, push, open your own PR, and hand off the PR URL. Load this when the lead delegates you an implementation task over fleetd.
description: Implementer-role procedure for a bridged worker — verify your worktree, implement the scope, commit, push, open your own PR, and hand off the PR URL. Load this when the lead delegates you an implementation task over bridged.
---
# Implementer worker — procedure
The turn contract (one `fleet_reply`, `fleet_ask` for the lead's decisions, honest reporting,
The turn contract (one `bridge_reply`, `bridge_ask` for the lead's decisions, honest reporting,
never merge, never commit `.mcp.json` or `wiki/`) is in **`CLAUDE.md` → Bridge communication →
Worker** and already applies. This skill is only the *implement-and-hand-off procedure*.
@@ -49,7 +49,7 @@ test "$(git rev-parse --show-toplevel)" = "$PWD" || cd "$(git rev-parse --show-t
your worktree*:
```bash
cd "$(git rev-parse --show-toplevel)/fleetd" && mvn clean install
cd "$(git rev-parse --show-toplevel)/bridged" && mvn clean install
echo "exit=$?"
```
@@ -85,7 +85,7 @@ host (`GITEA_HOST`) into your env for exactly this — the token can create a PR
merge**.
```bash
API="${GITEA_HOST%/}/api/v1/repos/fleet/fleetd/pulls"
API="${GITEA_HOST%/}/api/v1/repos/lms/claude-bridge/pulls"
BRANCH="$(git branch --show-current)"
curl -sS -X POST "$API" \
-H "Authorization: token ${GITEA_TOKEN}" \
@@ -103,7 +103,7 @@ fix it if the cause is yours (e.g. branch not pushed yet), and report the failur
inventing a URL. If `GITEA_TOKEN` is unset your profile was not granted PR-create: push the branch
and report its name so the lead opens the PR.
## 6. Hand off — what goes in `fleet_reply`
## 6. Hand off — what goes in `bridge_reply`
The reply is the entire handoff; the lead cannot see your terminal.
@@ -130,7 +130,7 @@ sequenceDiagram
I->>G: git push -u origin HEAD
I->>G: POST /pulls (GITEA_TOKEN) — open PR to main
G-->>I: html_url
I->>L: fleet_reply(PR url, branch, files, tests)
I->>L: bridge_reply(PR url, branch, files, tests)
Note over L,G: the lead reviews the PR and merges on green — you never merge
```
+1 -1
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@@ -53,7 +53,7 @@ Map each entry from `.mcp.json`:
"$schema": "https://opencode.ai/config.json",
"instructions": ["CLAUDE.md"],
"mcp": {
"fleetd": { "type": "remote", "url": "http://127.0.0.1:8765/mcp", "enabled": true },
"bridged": { "type": "remote", "url": "http://127.0.0.1:8765/mcp", "enabled": true },
"context7": { "type": "remote", "url": "https://example.dev/mcp", "enabled": true,
"headers": { "Authorization": "Bearer {env:CONTEXT7_TOKEN}" } },
"gitea": { "type": "local", "command": ["gitea-mcp", "-t", "stdio"], "enabled": true,
+4 -4
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@@ -1,11 +1,11 @@
---
name: reviewer
description: Reviewer-role procedure for a fleetd worker — how to work a review scope and the exact shape of the finding to report. Load this when the lead delegates you a code review over fleetd.
description: Reviewer-role procedure for a bridged worker — how to work a review scope and the exact shape of the finding to report. Load this when the lead delegates you a code review over bridged.
---
# Reviewer worker — procedure
The turn contract (one `fleet_reply`, `fleet_ask` for the lead's decisions, honest reporting,
The turn contract (one `bridge_reply`, `bridge_ask` for the lead's decisions, honest reporting,
never merge) is in **`CLAUDE.md` → Bridge communication → Worker** and already applies. This
skill is only the *review procedure*: how to work the scope, and the exact shape of what you
send back.
@@ -24,13 +24,13 @@ wrong.
covers what it was given.
- Do **not** edit files or run the build. You review; the owner acts.
## 3. Reach for `fleet_ask` only for a genuine fork
## 3. Reach for `bridge_ask` only for a genuine fork
Ambiguous requirement, a missing acceptance criterion, "intended or a bug?", or two defensible
fixes with different consequences — those are the lead's call, and guessing produces a
confident-but-wrong finding. Anything you could settle by reading more code is yours to settle.
## 4. The finding — what goes in `fleet_reply`
## 4. The finding — what goes in `bridge_reply`
Report the **single most important** real issue in the scope, in these four lines, under
~90 words:
+8 -6
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@@ -14,7 +14,7 @@ jobs:
# does not depend on the wiki repo being reachable.
- uses: actions/checkout@v4
# The runner image ships an older default-jdk; fleetd sets maven.compiler.release=25, so
# The runner image ships an older default-jdk; bridged sets maven.compiler.release=25, so
# provision the JDK explicitly rather than apt-installing whatever "default" means today.
- name: Set up JDK 25
uses: actions/setup-java@v4
@@ -32,7 +32,7 @@ jobs:
mvn -version
- name: Build and test
working-directory: fleetd
working-directory: bridged
# This IS the mock-socket surface CB-503 asks for: the pom's `default-excludes` profile
# already sets excludedGroups=contract, so the @Tag("contract") tests — which need a live
# herdr socket and a RabbitMQ container — are excluded without any flag here. Everything
@@ -46,7 +46,7 @@ jobs:
# the log instead, where they are actually readable.
- name: Failing test output
if: failure()
working-directory: fleetd
working-directory: bridged
run: |
for f in target/surefire-reports/*.txt; do
[ -f "$f" ] || continue
@@ -59,7 +59,7 @@ jobs:
# AmqpReplyInboxContractTest reads AMQP_URI (set below to the service's network alias) and binds
# straight to it — no Docker, no skipped tests. This separation (build job hermetic and
# Docker-free; contract job broker-provided) is deliberate — see the default-excludes/contract
# profiles in fleetd/pom.xml. `setup-java` provides the JDK only; Maven is installed separately,
# profiles in bridged/pom.xml. `setup-java` provides the JDK only; Maven is installed separately,
# exactly as in the build job above.
contract:
runs-on: ubuntu-latest
@@ -69,6 +69,8 @@ jobs:
env:
RABBITMQ_DEFAULT_USER: guest
RABBITMQ_DEFAULT_PASS: guest
ports:
- 5672:5672
env:
# Service containers are reachable from the job by their network alias on their internal port.
AMQP_URI: amqp://guest:guest@rabbitmq:5672
@@ -91,12 +93,12 @@ jobs:
# runs against the RabbitMQ service container (AMQP_URI). Pinned to the one contract test to
# avoid re-running the unit suite already covered by the `build` job.
- name: Contract tests
working-directory: fleetd
working-directory: bridged
run: mvn -B -Pcontract test -Dtest=AmqpReplyInboxContractTest
- name: Failing test output
if: failure()
working-directory: fleetd
working-directory: bridged
run: |
for f in target/surefire-reports/*.txt; do
[ -f "$f" ] || continue
+4 -12
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@@ -6,16 +6,8 @@
# Settings backups inherit the env block — and secrets with it.
.claude/settings.local.json.bak*
# The default profile parityOverlay copies these primary→worktree, so they appear in EVERY worker
# worktree. Two reasons they must be ignored. They hold environment values, which is reason enough.
# And since CB-576 a release preserves any worktree that `git status --porcelain` calls dirty —
# untracked files included, deliberately. An untracked overlay file would therefore make every
# COMPLETED release preserve its worktree, and worktrees would pile up with no error to notice.
.env
.envrc
# Daemon runtime artefacts. fleetd appends its log wherever it is launched from, so both the
# repo root and fleetd/ collect one; neither belongs in git.
fleetd.out
fleetd/fleetd.out
# Daemon runtime artefacts. bridged appends its log wherever it is launched from, so both the
# repo root and bridged/ collect one; neither belongs in git.
bridged.out
bridged/bridged.out
logs/
+1 -1
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@@ -1,3 +1,3 @@
[submodule "wiki"]
path = wiki
url = ssh://git@git.ltms.dev:2224/fleet/fleetd.wiki.git
url = ssh://git@git.ltms.dev:2224/lms/claude-bridge.wiki.git
-24
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@@ -1,24 +0,0 @@
---
description: Refine work into clear, independent units before implementation.
mode: primary
---
<!-- CB-617: The model comes from fleetd.yaml because the launch flag overrides model here on both backends. -->
You are an architect in this fleet. You refine work before anyone builds it: scope,
acceptance criteria, risks, and a unit split. You read the repo and write analysis.
You never commit production code and never open a pull request.
A design task is worked by two architects. Design alone first, then exchange and
say plainly where you disagree. Do not concede just to agree.
Do only the assigned scope. Note anything outside that scope in one line and do not
investigate it further. Use `fleet_ask{question}` only when a decision belongs to
the lead, such as an unclear requirement or two defensible fixes. Do not ask about
something you can decide by reading more code.
Report only work you actually did and the real output of checks you ran. Do not
claim a result from a tool you could not use. The primary's IDE tools are not yours.
A mounted forge tool may use a blocked credential and fail by design.
The launcher provides the required bridge reply instructions for every member.
-29
View File
@@ -1,29 +0,0 @@
---
description: Implement one assigned unit, test it, and open a pull request.
mode: primary
---
<!-- CB-617: The model comes from fleetd.yaml because the launch flag overrides model here on both backends. -->
You implement the one unit you were given and nothing else. Work in your assigned
git worktree and branch. Never check out, rebase onto, or push to `main`. Confirm
the worktree root and branch before you edit. Use only paths under that root.
Do only the assigned scope. Note anything outside that scope in one line and do not
investigate it further. Use `fleet_ask{question}` only when a decision belongs to
the lead, such as an unclear requirement or two defensible fixes. Do not ask about
something you can decide by reading more code.
Implement the change and run the full required build in your worktree. Read the
complete output and report its real result. Do not hide failures with a pipe. State
only checks you actually ran. The primary's IDE tools are not yours. A mounted forge
tool may use a blocked credential and fail by design.
Stage only files you changed. Never use `git add -A` or `git add .`. Never commit
`.mcp.json` or `wiki/`. Commit with a clear message, push your branch, and open your
own pull request against `main`. Never merge.
Your handoff must name the pull request or why it was not created, the branch, the
files changed, the build result, and any caveat for review.
The launcher provides the required bridge reply instructions for every member.
-34
View File
@@ -1,34 +0,0 @@
---
description: Review one assigned scope and report the most important real issue.
mode: primary
---
<!-- CB-617: The model comes from fleetd.yaml because the launch flag overrides model here on both backends. -->
You review the diff you were given. Report bugs, risks, and missing tests. You do
not change code.
Read the whole assigned scope before judging it. Review only that scope. If you see
something outside it, note it in one line and do not investigate it further. Do not
run the build. The owner makes changes and runs checks.
Use `fleet_ask{question}` only when a decision belongs to the lead, such as an
unclear requirement or two defensible fixes. Do not ask about something you can
decide by reading more code.
Report the single most important real issue in this form:
```
1. <path>:<line>
2. issue: <one sentence: what is wrong and why it matters>
3. fix: <one line: the concrete change>
4. severity: high | medium | low
```
If there is no real issue, report `NO ISSUE` and one line saying why. A clean review
is valid. Do not invent an issue. Use high for a wrong result, data loss, security,
or a hang or crash on a real path. Use medium for an edge-path bug or a correctness
risk under load or concurrency. Use low for clarity, a latent foot-gun, or a smell
with no current failure.
The launcher provides the required bridge reply instructions for every member.
+61 -131
View File
@@ -4,35 +4,35 @@
> **Canonical block.** Everything down to §Layering is the portable bridge charter, copied verbatim
> into every project that mounts the bridge MCP. Keep it byte-identical with the template in the
> wiki ([Use Cases](https://git.ltms.dev/fleet/fleetd/wiki/7-Use-Cases) → *The portable
> wiki ([Use Cases](https://git.ltms.dev/lms/claude-bridge/wiki/7-Use-Cases) → *The portable
> CLAUDE.md block*); improvements go to the template first, then out to each project. Anything
> specific to *this* repo lives under §Project addendum below, never inline above it.
If no `fleet_*` MCP tools are mounted in this session, this section does not apply — skip it.
If no `bridge_*` MCP tools are mounted in this session, this section does not apply — skip it.
`fleetd` is the **sole communication gateway** between agents here. The orchestrating session (the
`bridged` is the **sole communication gateway** between agents here. The orchestrating session (the
**primary**) and every delegated peer (a **member**) mount the *same* MCP server and talk only
through its `fleet_*` tools. No session addresses a peer, a broker, or the network directly.
through its `bridge_*` tools. No session addresses a peer, a broker, or the network directly.
### Which role am I? — settle this before acting
**Every role reads this file.** A member runs in a git worktree of this same repo, so it inherits
this `CLAUDE.md` verbatim, and every rule below is role-conditional.
**Call `fleet_whoami`.** It returns `primary`, `worker`, or `architect`, resolved by the daemon from
**Call `bridge_whoami`.** It returns `primary`, `worker`, or `architect`, resolved by the daemon from
your connection — unforgeable, and the same resolution its authorization gate uses. A worker also
carries its `sessionId`, `profile`, `worktree` and `branch`; an architect carries the slot name it
was bound to. Don't infer what you can ask.
Only if that call is unavailable, fall back to these — each is one-way, so keep reading until one
fires: the reply charter in your system prompt (*"You are a spawned member in the
claude-bridge fleet"*) ⇒ **spawned member**; fleet tools prefixed `mcp__fleet__*` ⇒ **spawned
fires: the reply charter in your system prompt (*"You are an off-subscription worker in the
claude-bridge fleet"*) ⇒ **spawned member**; bridge tools prefixed `mcp__bridge__*` ⇒ **spawned
member** (the launcher fixes that mount name; a primary's mount is named by whoever wrote its
`.mcp.json`, so it varies — and a member spawned before CB-632 still says `mcp__bridge__*`); `ANTHROPIC_BASE_URL` set ⇒ **spawned member** (Claude-model members run
`.mcp.json`, so it varies); `ANTHROPIC_BASE_URL` set ⇒ **spawned member** (Claude-model members run
on a clean env, so its *absence* proves nothing). None of these separate a worker from an architect —
only `fleet_whoami` does. **Still unsure ⇒ act as a worker**, the most restricted member role. The
only `bridge_whoami` does. **Still unsure ⇒ act as a worker**, the most restricted member role. The
two mistakes are not symmetric: a primary acting as a worker is refused by the authorization gate —
loud and self-correcting — while a member acting as the primary ends its turn with no `fleet_reply`,
loud and self-correcting — while a member acting as the primary ends its turn with no `bridge_reply`,
and the sender silently receives nothing. Fail toward the recoverable error.
### Invariants — both roles, no exceptions
@@ -41,7 +41,7 @@ and the sender silently receives nothing. Fail toward the recoverable error.
stays on subscription; only the bridge puts a member off it, at spawn. Mounting the bridge must
never move a session across that boundary.
2. **The bridge is the only channel.** Text you print in your terminal reaches nobody — the other
side cannot see your screen. An answer that isn't in a `fleet_*` call is silently discarded.
side cannot see your screen. An answer that isn't in a `bridge_*` call is silently discarded.
3. **Identity comes from the connection, never an argument.** Workers never pass a target; you
cannot act as another session. Spawn/stop/drain are lead-only; **send is lead or architect**;
reply/ask are only-as-itself — any peer may answer for its own pane, and for no other. A call
@@ -57,10 +57,10 @@ and the sender silently receives nothing. Fail toward the recoverable error.
**Delegate by default — that is the job.** With the bridge mounted you are an orchestrator on a
metered subscription, and workers are cheap, parallel, and disposable. The default answer to "who
does this?" is **a worker**, not you. Reach for `fleet_send` before you reach for `Edit`. The steps
does this?" is **a worker**, not you. Reach for `bridge_send` before you reach for `Edit`. The steps
below are the procedure — run them in order, every task, not only the big ones.
0. **Know your role** — `fleet_whoami`, once per session, before anything else.
0. **Know your role** — `bridge_whoami`, once per session, before anything else.
1. **Split.** Write the unit list. Every unit carries: scope · the files or PR in question ·
acceptance criteria · exactly what to report back. A unit with no acceptance criteria is not
ready to delegate — refine it or keep it.
@@ -70,22 +70,20 @@ below are the procedure — run them in order, every task, not only the big ones
delegate. The keep-list is closed: the conversation with the user, decomposition and planning,
the final judgment call, verification, merges, and anything that depends on context only you
hold. Nothing else is yours by default.
3. **Spawn every delegated unit first** — `fleet_spawn{profile, worktree:true, ticket}`, one per
3. **Spawn every delegated unit first** — `bridge_spawn{profile, worktree:true, ticket}`, one per
unit, *before* sending any. Pass `profile` explicitly: profiles differ in model and cost, not in
tier, so the default is rarely what you want.
4. **Then send them all** — `fleet_send{sessionId, content, wait:false}`. Line 1 of every brief is
4. **Then send them all** — `bridge_send{sessionId, content, wait:false}`. Line 1 of every brief is
`Load the <name> skill.` naming the worker's playbook; those skills are opt-in and that line is
what makes them reliable. Where the project ships no such skill, spell the procedure out in the
brief instead. The brief is self-contained — the worker sees your message and the repo, nothing
of your context, your plan, or your screen.
5. **Collect** — `fleet_poll{ticket}` → `fleet_ack{target, msgId}`. Answer a worker's `fleet_ask`
with `fleet_send{turnId, content}` — **not** `sessionId`. A worker gone quiet is diagnosed with
`fleet_status`, never by reading its terminal; it also reports an open question and the `turnId`
that answers it. **A worker's ask waits ~55 seconds, and no nudge makes that longer** — so never
brief a worker to "ask me". Decide before you delegate, or give it an explicit default.
6. **Verify yourself.** Re-run the build and the checks. A worker cannot run your IDE tooling, any
forge tools it appears to have hold a blocked credential and fail, and a piped command
(`… | tail`) hides failures behind a zero exit — never promote a worker's "clean" to a fact.
5. **Collect** — `bridge_poll{ticket}` → `bridge_ack{ticket, msgId}`. Answer a worker's `bridge_ask`
with `bridge_send{turnId, content}` — **not** `sessionId`. A worker gone quiet is diagnosed with
`bridge_status`, never by reading its terminal.
6. **Verify yourself.** Re-run the build and the checks. A worker mounts only the bridge MCP and
cannot run your other tooling, and a piped command (`… | tail`) hides failures behind a zero
exit — never promote a worker's "clean" to a fact.
7. **Review — fan out.** Spawn reviewers against the diff, one per dimension or per file, with
`wait:false`. Never the implementer of the scope it reviews, and brief them from the diff — not
from the implementer's rationale, which carries its own blind spot. Dispatch each PR's reviewers
@@ -93,11 +91,11 @@ below are the procedure — run them in order, every task, not only the big ones
read it yourself.
8. **Adjudicate, merge, tear down — yours alone.** Read the diff yourself: fully if it is small,
targeted at the reported findings and the risky paths if it is large. Reviewer findings direct
your attention; they never substitute for it. Then merge, then `fleet_stop{paneId}`.
your attention; they never substitute for it. Then merge, then `bridge_stop{paneId}`.
**Steps 3 and 4 are separate on purpose** — spawning and sending in one loop is how parallel work
silently becomes serial, and it is the most common way this layer is wasted. For the same reason,
prefer `wait:false` + `fleet_poll` for anything non-trivial: a blocking `fleet_send` is capped by
prefer `wait:false` + `bridge_poll` for anything non-trivial: a blocking `bridge_send` is capped by
*your own* MCP client call timeout (~60s), well below the task's real runtime.
**Delegating does not delegate responsibility.** Workers open PRs; you are the gate. Never delegate
@@ -105,22 +103,21 @@ the merge — and merging on a reviewer's word is delegating it by proxy.
| Intent | Tool |
|---|---|
| Confirm your own role | `fleet_whoami` |
| See backends available | `fleet_profiles` |
| Start a member | `fleet_spawn{role?, profile?, cwd?, worktree?, ticket?, sessionName?, resumeSessionId?}` → `sessionId` + `paneId` |
| See the fleet | `fleet_list` → `leads` (your peers) + `members` (each carries `agentSessionId` when its backend knows one) · one peer's state: `fleet_status{sessionId}` |
| Delegate (blocking) | `fleet_send{sessionId, content}` |
| Delegate (long task) | `fleet_send{sessionId, content, wait:false}` → ticket → `fleet_poll{ticket}` |
| Answer a member's `fleet_ask` | `fleet_send{turnId, content}` — **not** `sessionId` |
| Message a **peer lead** on this host | `fleet_send{sessionId: <their terminal>, content}` — `fleet_list` → `leads` reports it. Coordination only, **never** a task |
| Message a **peer lead** on another daemon or host | `fleet_send{coordId: <their coord-id>, content}` — needs a `coordinator:` block; your own coord-id is in `fleet_list`. Coordination only, **never** a task |
| Answer a peer lead that messaged you | `fleet_reply{content}` — the one case a lead replies |
| Collect a held reply | `fleet_poll{target}` · then `fleet_ack{target, msgId}` |
| Tear down a member | `fleet_stop{paneId}` |
| Confirm your own role | `bridge_whoami` |
| See backends available | `bridge_profiles` |
| Start a member | `bridge_spawn{role?, profile?, cwd?, worktree?, ticket?}` → `sessionId` + `paneId` |
| See the fleet | `bridge_list` → `leads` (your peers) + `members` · one peer's state: `bridge_status{sessionId}` |
| Delegate (blocking) | `bridge_send{sessionId, content}` |
| Delegate (long task) | `bridge_send{sessionId, content, wait:false}` → ticket → `bridge_poll{ticket}` |
| Answer a member's `bridge_ask` | `bridge_send{turnId, content}` — **not** `sessionId` |
| Message a **peer lead** | `bridge_send{sessionId: <their terminal>, content}` — `bridge_list` → `leads` reports it. Coordination only, **never** a task |
| Answer a peer lead that messaged you | `bridge_reply{content}` — the one case a lead replies |
| Collect a held reply | `bridge_poll{target}` · then `bridge_ack{target, msgId}` |
| Tear down a member | `bridge_stop{paneId}` |
### Lead ↔ lead — coordinate, never delegate
`fleet_list` returns `leads` alongside `members`; your own row carries `self: true`. Every other row
`bridge_list` returns `leads` alongside `members`; your own row carries `self: true`. Every other row
is a peer — an orchestrator with its own context, its own members, and its own judgment. An empty
`members` array means no members are spawned; it says nothing about peers.
@@ -141,7 +138,7 @@ The traffic between leads is coordination and nothing else:
against the code, and re-run the build. A peer's correction gets the same treatment — right or
wrong on the evidence, not on who said it. Neither of you merges the other's work unreviewed.
Being messaged by a peer does not make you its worker: answer with `fleet_reply`, and push back on
Being messaged by a peer does not make you its worker: answer with `bridge_reply`, and push back on
the substance if it is wrong. A peer that simply complies has thrown away the reason there are two of
you.
@@ -149,22 +146,18 @@ you.
1. **Load the playbook skill the lead named** before doing anything else.
2. **Do the assigned scope only.** Note anything you spot outside it in one line; don't go hunt it.
3. **`fleet_ask{question}`** when a decision is genuinely the lead's (ambiguous requirement, two
3. **`bridge_ask{question}`** when a decision is genuinely the lead's (ambiguous requirement, two
defensible fixes, "bug or intended?"). It blocks and you resume the *same* turn with the answer.
Don't ask what you could decide yourself.
4. **End the turn with exactly one `fleet_reply{content}`**, carrying your complete answer. This is
the whole handoff. No `fleet_reply` ⇒ the sender gets nothing and the exchange stalls.
4. **End the turn with exactly one `bridge_reply{content}`**, carrying your complete answer. This is
the whole handoff. No `bridge_reply` ⇒ the sender gets nothing and the exchange stalls.
Do **not** lean on the completion fallback to carry your answer for you: when you end a turn
without replying, the bridge scrapes your pane, and it can return only the last 4000 characters.
A clipped scrape is marked as partial, but the missing text is gone — your report reaches the
lead with its end cut off.
5. **Report honestly.** State only what you actually ran and its real output, including failures,
and never claim the result of a check you had no way to run. **Measure your own tools; do not
assume them.** What you mount depends on your backend: an opencode member gets the bridge and
nothing else, while a Claude Code member also inherits the operator's user-scope MCP servers,
which the bridge never chose for you. Two rules follow. The primary's IDE tooling is still not
yours, whatever you see. And **a mounted tool is not a working tool** — the forge server you may
find there holds a deliberately blocked credential and fails every call, by design.
5. **Report honestly.** State only what you actually ran and its real output, including failures.
You mount **only** the bridge MCP — the primary's other servers (IDE, forge, docs) are not yours,
so never claim the result of a check you had no way to run.
6. **Never merge.** Stage files explicitly — never `git add -A` — and leave alone anything the
project marks as not-yours-to-commit.
@@ -172,92 +165,29 @@ you.
| Layer | Scope | Reaches |
|---|---|---|
| the launcher's reply charter | the one rule that must survive with no repo: *end every turn with `fleet_reply`* | every spawned member, at launch, every peer kind — never a lead |
| the launcher's reply charter | the one rule that must survive with no repo: *end every turn with `bridge_reply`* | every spawned member, at launch, every peer kind — never a lead |
| **this section** | protocol + orchestration policy | primary **and** every member that reads the repo — tracked in git, so worktrees inherit it |
| role agent definition files | role contract and per-job procedure | a member whose launcher binds its role to the matching file in its worktree |
| role playbook skills | per-job procedure (commit/PR recipe, finding format) | a member told to load one |
| the bridge's own docs | design detail, flows, error model | on demand |
A rule belongs in **exactly one** layer — the outermost one that must obey it. A member without a
repo checkout still gets the launcher's reply charter, which is why that one rule stays there.
Peers that don't read `CLAUDE.md` (non-Claude adapters) get the charter only, so any rule *they*
must obey belongs in the charter, not here.
A rule belongs in **exactly one** layer — the outermost one that must obey it. Peers that don't read
`CLAUDE.md` (non-Claude adapters) get the charter only, so any rule *they* must obey belongs in the
charter, not here.
## Project addendum — claude-bridge (not part of the canonical block)
- **This repo is the bridge.** The daemon is `fleetd`, its MCP mount is `http://127.0.0.1:8765/mcp`,
and the code behind the rules above is `mcp/FleetMcp` (tools), `auth/Authz` (the role table),
- **This repo is the bridge.** The daemon is `bridged`, its MCP mount is `http://127.0.0.1:8765/mcp`,
and the code behind the rules above is `mcp/BridgeMcp` (tools), `auth/Authz` (the role table),
`mcp/ConnectionIdentity` (connection→role), and `worker/*Launcher` (`REPLY_CHARTER`).
- **Skills available to delegate:** `implementer` (worktree → commit → push → own PR) and
`reviewer` (scoped review → one structured finding). Name one in every delegation.
- **Primary-side skills** (not delegation playbooks — a worker cannot use them):
`port-to-opencode` (make an OpenCode session a participant in this workspace) and
`fleets-status` (report every fleet that shares one LavinMQ instance).
`port-to-opencode` (make an OpenCode session a participant in this workspace).
- **Never commit** `.mcp.json` (the primary's local copy, flagged `--skip-worktree`) or `wiki/`
(a submodule with its own remote).
- **Flows and the error model** — rendezvous, `fleet_ask`, detached delivery, turn-done fallback —
are diagrammed in `docs/MCP-Contract.md` **§6 only**. The rest of that page is a pre-build design
doc whose tool names, parameter names and REST paths never caught up with the code, so do not use
it as the tool reference (CB-609). Section 6 is kept out of this file because this file loads into
every session's context.
### Redeploying the daemon — the lead may do this (primary only)
**A merge is not a deployment.** The running `fleetd` holds the jar it was started with, so a
feature merged to `main` does nothing until the daemon is rebuilt and restarted. Saying "shipped"
about code the live daemon has never loaded is a false report. The lead **may and should** redeploy
rather than hand the job back to the operator.
Workers must never do this. A worker has no business restarting the daemon it is talking through,
and stopping it kills the worker's own channel mid-turn.
**Use the script — do not hand-roll the steps.**
```bash
scripts/redeploy-fleetd.sh --check # report state, change nothing
scripts/redeploy-fleetd.sh # build, confirm drain, restart, verify
scripts/redeploy-fleetd.sh --yes # skip the drain prompt (fleet already checked)
```
It builds before it stops anything, so a failed build never leaves the fleet down; it waits for the
old process to exit rather than assuming; it polls `/healthz`; and it anchors its log checks to a
line marker taken before the restart, so old errors cannot be misread as new ones. Run `--check`
first — it is read-only and reports whether the forge token resolves, which nothing else tells you.
The script encodes the five things below, each of which has gone wrong here before. Read them anyway:
if the script is unavailable or a step fails, this is what it was protecting you from.
1. **Login shell, or workers silently lose their forge token.** The daemon inherits
`WORKER_GITEA_TOKEN` from the shell that starts it, and that comes from
`${SHARED_ENV}/tools/secrets.sh`. Start it from a non-login shell and the variable is empty, the
daemon starts fine, and the failure appears much later as workers that cannot open a PR. Nothing
logs this at startup — the script's `--check` is the only thing that reports it, and it checks
whether the name resolves without ever printing the value.
2. **Drain live members first.** `fleet_list`, then `fleet_stop` each member, and collect anything
you still want with `fleet_poll` before you kill anything. A restart drops in-flight tickets and
rendezvous, and a member's report is not recoverable once its ticket is gone.
3. **A restart is the only way deferred config keys take effect.** That is usually the reason to do
it. The startup log names which keys it accepted and which it deferred — read those lines rather
than assuming.
4. **Re-check identity afterwards.** Call `fleet_whoami` and confirm it still answers `primary`. The
lead is found by its tab label (`fleet.leaders.*.tab`), and a lead whose tab no longer matches is
demoted to worker, which refuses every orchestration call.
5. **Prove the new jar is the one running.** Confirm a *fresh* `fleetd listening` line at the end of
`fleetd/fleetd.out`, dated after the restart. An old daemon that never died looks identical from
the outside.
**Permission.** A `CLAUDE.md` rule grants intent, not tool permission — the command classifier
refuses a bare `kill` on the daemon whatever this file says. The script is the seam that fixes that:
it is one auditable command, so the operator allow-lists it once instead of approving a stop and a
start every time. The rule lives in the operator's Claude Code settings:
```json
{ "permissions": { "allow": ["Bash(scripts/redeploy-fleetd.sh:*)"] } }
```
Granted by the operator on 2026-08-15. If a call is still refused, do **not** route around it by
running the stop and start as separate commands — that is exactly the approval the script replaced.
Say what you were going to run and why, and let the operator decide.
- **Flows and the error model** — rendezvous, `bridge_ask`, detached delivery, turn-done fallback —
are diagrammed in `docs/MCP-Contract.md` §6, kept out of this file because it loads into every
session's context.
### The prompt is part of the product — update it with the code (mandatory)
@@ -270,15 +200,15 @@ Before you call any work done, check the row that matches what you touched:
| You changed… | Re-read and update… |
|---|---|
| a `fleet_*` tool — added, removed, renamed, or its params/semantics | the primary's intent→tool table; any rule that names that tool |
| a `bridge_*` tool — added, removed, renamed, or its params/semantics | the primary's intent→tool table; any rule that names that tool |
| `Authz` / the role table | invariant 3, and the primary-only vs worker-only claims |
| `ConnectionIdentity` / how a caller is resolved | the `fleet_whoami` paragraph and the fallback ladder |
| `REPLY_CHARTER`, or a launcher's mount/flags | the fallback ladder (`mcp__fleet__*`), and the layering table's top row |
| `ConnectionIdentity` / how a caller is resolved | the `bridge_whoami` paragraph and the fallback ladder |
| `REPLY_CHARTER`, or a launcher's mount/flags | the fallback ladder (`mcp__bridge__*`), and the layering table's top row |
| the injector / status gating | invariant 4 |
| worktree provisioning or the parity overlay | the "both roles read this file" premise — it rests on the worker's worktree being a checkout of this repo |
| `.claude/skills/**` | the addendum's skill list, and the "name the playbook" rule |
| a new peer kind (non-Claude adapter) | what that peer can read — anything it must obey belongs in its charter, not in the block |
| **anything an operator can use, configure, or observe** — an MCP tool, a `fleetd.yaml` knob, an endpoint, a visible behaviour | **[Features](wiki/11-Features.md)** — one entry: what it does · the knob that turns it on · **why it exists** · the gotcha |
| **anything an operator can use, configure, or observe** — an MCP tool, a `bridged.yaml` knob, an endpoint, a visible behaviour | **[Features](wiki/11-Features.md)** — one entry: what it does · the knob that turns it on · **why it exists** · the gotcha |
That last row is not bookkeeping. Chapters 1–10 answer *how is this built* and *why this way*;
none of them has a home for *what can it do and how do I turn it on*, so for twenty tickets a
@@ -289,7 +219,7 @@ is a Roadmap line. A change that touches none of the three earns no entry, and t
outcome rather than an omission.
Then **propagate**: the block in this file and the template in the wiki
([Use Cases](https://git.ltms.dev/fleet/fleetd/wiki/7-Use-Cases) → *The portable `CLAUDE.md`
([Use Cases](https://git.ltms.dev/lms/claude-bridge/wiki/7-Use-Cases) → *The portable `CLAUDE.md`
block*) must stay byte-identical, and other projects carrying the block need the same edit. Verify
rather than trust:
@@ -312,10 +242,10 @@ PY
Two IDE MCP servers are connected: **intellij-index** (semantic code intelligence) and
**jetbrains** (file problems, reformat, debugger). IntelliJ has multiple projects open; our
module is **`fleetd`**. Always pass these to IDE MCP tools:
module is **`bridged`**. Always pass these to IDE MCP tools:
- `project_path` = `/Users/dai.ha/LTMS/claude-bridge/fleetd`
- IDE paths are relative to `fleetd/` (e.g. `src/main/java/dev/ltms/fleet/...`)
- `project_path` = `/Users/dai.ha/LTMS/claude-bridge/bridged`
- IDE paths are relative to `bridged/` (e.g. `src/main/java/dev/ltms/bridged/...`)
### After editing any file — mandatory
@@ -329,7 +259,7 @@ module is **`fleetd`**. Always pass these to IDE MCP tools:
whole-project gate before declaring work done or committing.
**Whenever dependencies change (or a `pom.xml` edit), validate CVEs with
`jetbrains get_file_problems{filePath: "fleetd/pom.xml"}`** — its Mend.io check reflects the
`jetbrains get_file_problems{filePath: "bridged/pom.xml"}`** — its Mend.io check reflects the
dependencies on disk. (Note: `ide_diagnostics` / intellij-index does NOT re-resolve dependencies
after a pom edit without a full Maven reimport, so it reports stale CVE results — don't trust it
for this.) Treat a CVE warning like any other: bump to a patched version and confirm
+29 -32
View File
@@ -9,33 +9,32 @@ Sibling of [`crush-bridge`](https://git.ltms.dev/systems/vms) (which drives a he
process*, so it inherits `CLAUDE.md`, hooks, skills, and MCP — just pointed at a
cheaper/local model.
## Leading approach — herdr-centric message server (`fleetd`)
## Leading approach — herdr-centric message server (`bridged`)
A small always-on message server, **`fleetd`**, controls
A small always-on message server, **`bridged`**, controls
[herdr](https://herdr.dev) (an agent multiplexer) over its Unix-socket API and exposes a
clean 2-way messaging API as an **MCP server that both the primary and the workers mount** —
one unified Claude setup and the **sole communication gateway** (REST/SSE stays for non-Claude
clients; any broker is `fleetd`-internal, below the gateway).
herdr owns the PTYs, multiplexing, persistence, and **agent-status events**; `fleetd` owns
clients; any broker is `bridged`-internal, below the gateway).
herdr owns the PTYs, multiplexing, persistence, and **agent-status events**; `bridged` owns
policy (subscription boundary, session lifecycle, status-gated delivery) and the client
contract. A Claude member launches with `ANTHROPIC_BASE_URL` pointed at the gateway,
`https://llm.ltms.dev/anthropic`, plus a bearer token; the lead stays env-clean and calls
`fleetd`'s MCP tools. See the wiki's **[13 User Guide](wiki/13-User-Guide.md)** to run it.
contract. The worker `claude` launches with `ANTHROPIC_BASE_URL=https://ollama.ltms.dev` + a
bearer token; the primary Opus stays env-clean and calls `bridged`'s MCP tools.
```mermaid
flowchart LR
OPUS["Opus — primary<br/>(Claude Code, env CLEAN)<br/>MCP client"]
subgraph BD["fleetd — standalone daemon (not a claude process)"]
subgraph BD["bridged — standalone daemon (not a claude process)"]
SRV["SERVER face<br/>MCP · REST/SSE · policy"]
CLI["CLIENT face<br/>status-gated injector · herdr socket"]
SRV --> CLI
end
HERDR["herdr<br/>panes · agent-status"]
W["worker claude pane<br/>ANTHROPIC_BASE_URL set<br/>MCP client"]
M["llm.ltms.dev<br/>(the one gateway)"]
M["ollama.ltms.dev<br/>(worker model)"]
OPUS -->|"MCP fleet_send (blocks)"| SRV
W -.->|"MCP fleet_reply"| SRV
OPUS -->|"MCP bridge_send (blocks)"| SRV
W -.->|"MCP bridge_reply"| SRV
CLI -->|"Unix socket<br/>send_text · events.subscribe"| HERDR
HERDR -->|"drives PTY"| W
W -->|"inference"| M
@@ -47,26 +46,24 @@ flowchart LR
```
- **Subscription boundary:** the *primary* never sets `ANTHROPIC_BASE_URL` (stays on
Pro/Max). Only the *secondary* process is off-subscription — and `fleetd` itself is a
Pro/Max). Only the *secondary* process is off-subscription — and `bridged` itself is a
plain daemon (no Anthropic quota), so it may poll/subscribe freely.
- **One gateway (unified MCP setup):** `fleetd` is the **sole communication path** for every
- **One gateway (unified MCP setup):** `bridged` is the **sole communication path** for every
Claude session. Primary and workers each mount it as an MCP server (one `claude mcp add`
line, same on both) and talk over MCP tools — `fleet_send` / `fleet_reply` /
`fleet_status` (with `fleet_ask` planned for the blocked-worker path). **No Claude session
ever addresses a broker, a peer, or the network
directly**; any queue is `fleetd`-internal. MCP tool I/O never sets `ANTHROPIC_BASE_URL`, so
mounting the bridge is subscription-safe by construction.
**Tool naming:** the tools are `fleet_*` (renamed from `bridge_*` in CB-622). The old
`bridge_*` names were removed in CB-634 — only `fleet_*` answers now.
- **How the primary consumes a reply:** a single **blocking MCP call** (`fleet_send`);
`fleetd` holds it open until the worker calls `fleet_reply` or its turn hits
line, same on both) and talk over MCP tools — `bridge_send` / `bridge_reply` /
`bridge_status` (with `bridge_ask` planned for the blocked-worker path). **No Claude session
ever addresses a broker, a peer, or the network
directly**; any queue is `bridged`-internal. MCP tool I/O never sets `ANTHROPIC_BASE_URL`, so
mounting the bridge is subscription-safe by construction.
- **How the primary consumes a reply:** a single **blocking MCP call** (`bridge_send`);
`bridged` holds it open until the worker calls `bridge_reply` or its turn hits
`agent_status=done`, then returns the reply as the tool result. No cross-turn busy-poll, so
no quota burn. SSE is an optional side-channel for humans/dashboards watching status.
- **Worker → primary** rides `fleetd`'s **MCP rendezvous** — the reply resolves the primary's
blocking call (or, for detached work, `fleetd` **injects the primary's idle pane** when it's
- **Worker → primary** rides `bridged`'s **MCP rendezvous** — the reply resolves the primary's
blocking call (or, for detached work, `bridged` **injects the primary's idle pane** when it's
ready), so *no keystroke-into-primary and no broker are involved, even single-host*. The one
exception: a split-host primary that isn't a herdr pane wakes via its own `Stop`-hook, which
polls **`fleetd`** (never a broker). See the wiki for the two topologies.
polls **`bridged`** (never a broker). See the wiki for the two topologies.
- **Different model per process** sidesteps Claude Code's lack of per-subagent provider
routing — the worker isn't a subagent, it's its own configured process.
- **AgentAPI** ([`coder/agentapi`](https://github.com/coder/agentapi)) is retained only as a
@@ -75,11 +72,11 @@ flowchart LR
## Docs
Full design, setup, and operations live in the **[wiki](https://git.ltms.dev/fleet/fleetd/wiki)**,
Full design, setup, and operations live in the **[wiki](https://git.ltms.dev/lms/claude-bridge/wiki)**,
vendored here as a submodule under [`wiki/`](./wiki):
```bash
git clone --recurse-submodules ssh://git@git.ltms.dev:2224/fleet/fleetd.git
git clone --recurse-submodules ssh://git@git.ltms.dev:2224/lms/claude-bridge.git
# or, after a plain clone:
git submodule update --init
```
@@ -89,7 +86,7 @@ Gitea wiki.
## Status
🟢 **Implemented & dogfooded** — the herdr-centric **`fleetd`** message server is built and in
🟢 **Implemented & dogfooded** — the herdr-centric **`bridged`** message server is built and in
real use: an Opus primary delegates tasks to off-subscription workers that reply through the
bridge (code reviews delegated this way have produced committed bug fixes). Selected as the
primary approach 2026-07-11, superseding the AgentAPI plan (2026-07-08); AgentAPI retained as a
@@ -100,9 +97,9 @@ tests run separately via `mvn test -Pcontract`):
- **Core gateway** — herdr socket client (contract-tested vs live 0.7.0); guard-checked worker
spawn with `ANTHROPIC_BASE_URL` injected only into the worker's env; status-gated injector;
blocking `fleet_send` with reply rendezvous; MCP server as a thin adapter over the REST core.
- **MCP tools** — `fleet_send` / `fleet_reply` / `fleet_status` (messaging) and `fleet_spawn`
/ `fleet_list` / `fleet_stop` / `fleet_profiles` / `fleet_poll` (fleet). Caller identity is
blocking `bridge_send` with reply rendezvous; MCP server as a thin adapter over the REST core.
- **MCP tools** — `bridge_send` / `bridge_reply` / `bridge_status` (messaging) and `bridge_spawn`
/ `bridge_list` / `bridge_stop` / `bridge_profiles` / `bridge_poll` (fleet). Caller identity is
connection-based (loopback peer PID → herdr pane), so the same mount serves primary and workers.
- **Delivery reliability** — completion fallback (a confirmed `working→idle` turn resolves a
send); async fire-and-poll (beats the caller's MCP call timeout for long tasks); and failure
@@ -110,7 +107,7 @@ tests run separately via `mvn test -Pcontract`):
- **Fleet** — multiple worker profiles, each with an independent base_url guard check; workers
inherit the primary's working directory (never `$HOME`); a readiness gate holds delivery until
a worker's Claude has connected the bridge MCP (no paste lost into its boot window).
- **Blocked-worker path** — `fleet_ask` reverse rendezvous: a worker pauses its delegated turn to
- **Blocked-worker path** — `bridge_ask` reverse rendezvous: a worker pauses its delegated turn to
ask the primary and resumes the *same* turn with the answer (CB-205).
- **Session lifecycle** — session manager with spawn/reuse/recycle, `idle_ttl` reaper, `context_cap`,
and graceful drain on shutdown (CB-301/CB-303); per-worker git worktrees on their own branch with
+14
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@@ -0,0 +1,14 @@
# Build output
target/
dependency-reduced-pom.xml
# Local runtime config (copy from bridged.example.yaml)
bridged.yaml
# CB-505 audit trail + daemon stdout/stderr — runtime records, never source
logs/
# Editor / OS
*.iml
.idea/
.DS_Store
+419
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@@ -0,0 +1,419 @@
# bridged configuration (example). Copy to bridged.yaml and adjust.
#
# bridged is the sole gateway between primary/worker Claude sessions and herdr.
# It is NOT a Claude process and must never carry ANTHROPIC_BASE_URL.
# REST + MCP listen address. Keep it on loopback unless you also switch auth.mode to `token`
# below — bridged REFUSES TO START on a non-loopback bind under loopback-trust (see auth).
bind:
host: 127.0.0.1
port: 8765
# API authentication (CB-501). Governs how a caller that is NOT an on-host worker pane proves it
# is the primary. Worker identity never depends on this: a loopback peer PID that maps to a herdr
# pane is unforgeable and is always honoured, so turning auth on cannot lock the fleet out.
#
# mode: loopback-trust → DEFAULT, and the historical behaviour: any loopback caller that is not
# a worker is the primary, no credential needed. Sound ONLY because the
# OS refuses remote connections to a loopback socket.
# mode: token → such a caller must send `Authorization: Bearer <token>`; without it it
# is anonymous and authorized for nothing. REQUIRED for a non-loopback
# bind — the daemon fails fast otherwise, because "unauthenticated ⇒
# primary" on a reachable port would hand spawn/stop/send to anyone.
# tokenEnv → host env var holding the token (never the literal value). Default
# BRIDGED_API_TOKEN. Read only in token mode; empty ⇒ startup fails.
#
# TLS is deliberately NOT terminated in the daemon (CB-501 D3): run a reverse proxy in front and
# let it own certificate lifecycle, e.g.
# location / { proxy_pass http://127.0.0.1:8765; proxy_set_header Authorization $http_authorization; }
# The broker link gets TLS from its own URI (amqps://…) — see `broker` below.
# auth:
# mode: token
# tokenEnv: BRIDGED_API_TOKEN
# Optional pinned primary terminal (CB-307). Names the herdr pane the PRIMARY itself runs in:
# a caller whose connection maps to this pane resolves as the primary (no credential needed —
# the pane mapping is as unforgeable as a worker's), and reply nudges are pushed to it.
# REQUIRED when the primary runs inside a herdr pane — without it the pane match reads the
# primary as a worker and refuses spawn/send/stop. Get the id from bridge_whoami; re-pin if
# the primary moves panes.
# primary:
# terminal: term_0123456789abcd
# pushReminders: 5 # max nudges before giving up (default 5)
# pushBackoffMs: 15000 # delay between nudges (default 15000)
# CB-530: MORE THAN ONE LEAD. `primary:` above is singular by construction — every other pane
# resolves as a worker — which is right for one lead driving a fleet and wrong the moment two leads
# (say a Claude lead and an opencode lead) work as peers: the second is silently demoted and refused
# every orchestration call. List each lead's pane here and all of them resolve as leads.
#
# terminal → the ONLY field identity depends on; get it from that session's bridge_whoami
# kind/model → descriptive; they document what runs in the pane and are echoed by bridge_whoami
#
# A lead is never spawned — it pre-exists, which is exactly why it must be named rather than created.
# `bridge_whoami` reports `{"role":"primary","leader":"<name>"}`; role stays "primary" because a lead
# IS a primary for authorization, so nothing that keys on the role breaks.
#
# KEEP `primary:` when adding leads: it still addresses the CB-307 push loop, which needs a single
# destination for its nudges. If both name the same terminal, the `fleet.leaders:` entry wins.
#
# Leads are configured under `fleet.leaders:` — see THE FLEET further down.
#
# Two things stop the tab-name convention from becoming a way to claim leadership: the configured
# member spaces are excluded from the scan, so nothing bridged places can land in a matching tab;
# and startup REFUSES a `tabPrefix` that the fleet tabLabel template, or any per-profile `tabLabel`
# override, also matches — so the two namespaces cannot overlap by accident. The label is a NAME,
# never a capability: what a pane may do is decided by the role the daemon resolves for it.
# CB-551: IDLE-LEAD HEARTBEAT — nudge the single lead back to work when it has been continuously
# idle (no open bridge_send driving it) past the quiet period. The fleet is one lead + architects +
# workers, so a lead that stalls is a single point of failure; the ReplyPushLoop only nudges when a
# reply lands, and this timer catches the gap where nothing lands and the lead just sits idle.
#
# Opt-in on purpose — it SPENDS the operator's subscription on its own initiative (each nudge starts
# a lead turn nobody asked for), so upgrading the daemon must never switch it on for you. Absent
# block = feature off, exactly as before.
#
# Three knobs, each with a default that errs on the side of not burning context:
# idleAfterSeconds: 300 # how long the lead must stay idle before the FIRST nudge (default 300 —
# # absorbs normal post-turn pauses; re-prompting every pause burns context)
# backoffMs: 60000 # re-check cadence / spacing between nudges past the quiet period (default 60000)
# quietNudgeCap: 3 # cap on consecutive nudges that find NOTHING pending, then it stops
# # until real state appears (default 3 — never nag an empty fleet forever)
# leadHeartbeat:
# idleAfterSeconds: 300
# backoffMs: 60000
# quietNudgeCap: 3
# Fleet health detection is dormant unless enabled. It reads one whole-fleet agent list per tick.
# It can run without a webhook; bridge_list then reports healthCoverage: detection-only.
# health:
# enabled: true
# intervalSeconds: 30 # minimum 15
# workingSuspectAfterSeconds: 600 # minimum 300
# paneProbeIntervalSeconds: 60 # minimum 60
# notifications:
# mode: disabled # disabled (default) or webhook
# herdr Unix socket. Omit to use the client default
# (${HERDR_SOCKET_PATH:-~/.config/herdr/herdr.sock}).
herdrSocket: ~/.config/herdr/herdr.sock
# How member sessions are spawned. Define one or more named profiles (backends) under
# `profiles`; each key is the profile name (also the ccs profile). A profile says only WHICH
# BACKEND — model, CLI adapter, credentials, cost. It says nothing about what a member spawned on
# it is for; that is the member's role, and roles live under `fleet:` below. Which profile an
# unqualified spawn lands on comes from that role's pool, not from a global default.
#
# Shared knobs (placement/workspace) can be repeated per profile; they usually match.
# placement: tab → each worker lands in its OWN tab in a dedicated worker space (default).
# Use `pane` for the legacy behaviour (split the focused tab).
# mcpUrl → bridged mounts the bridge MCP (--mcp-config, inline) + reply charter
# (--append-system-prompt) as launch flags; nothing is written to the profile.
# tokenEnv → host env var holding the worker's auth token (value never stored in config);
# omit for a backend that needs no token (e.g. a local ollama).
# cwd → pin this profile's working directory (CB-112). Omit to inherit the primary's
# cwd on an MCP spawn, else the daemon's cwd — never $HOME. See
# docs/Worker-Startup-and-Trust.md.
# configDir → CLAUDE_CONFIG_DIR for the worker, so it inherits that profile's
# skills/MCP/hooks. Omit to leave the worker on the host default.
# parityOverlay → repo-relative paths copied primary→worktree so a worker in a provisioned
# worktree sees the same local config (CB-301-ext). Omit for the default set:
# [.claude/settings.local.json, .env, .envrc].
#
# Do NOT add .mcp.json (CB-525). A worker's tools are whatever its launcher
# mounts — the bridge, and nothing else. Replicating the primary's MCP config
# handed a worker the primary's IDE servers, which are bound to the primary's
# checkout, so its navigation returned paths OUTSIDE its own worktree: one
# worker made all 59 of its edits in the primary tree while compiling its
# worktree, and every build it ran was of code that did not contain them.
# bridged neutralizes a provisioned worktree's .mcp.json for this reason;
# listing it here would copy the primary's back over that.
# gitTokenEnv → host env var holding the git-forge API token. When set, its value is injected
# as GITEA_TOKEN so the worker can open its OWN PR at checkpoint (CB-302).
# Opt-in by design — omit and the worker gets no PR-create grant (push over
# SSH is unaffected). The token value itself is never stored in this file.
# gitHostEnv → host env var holding the forge host (default GITEA_HOST). Injected as
# GITEA_HOST *only* alongside a resolved gitTokenEnv.
# env → extra environment for this profile's workers, as a literal key/value map
# (CB-511). Use it to give workers a toolchain.
#
# A worker's environment does NOT come from your shell. bridged hands herdr an
# explicit env map and herdr merges it into ITS OWN process env — so before
# CB-511 a worker inherited whatever PATH the herdr server happened to be
# started with, which on a long-lived herdr can predate your toolchain entirely
# and leave workers unable to run `mvn` or `java` at all.
# bridged now propagates ITS OWN PATH to every worker by default; set `env:`
# only to override that or add more (JAVA_HOME, …). Since the default is the
# daemon's PATH, make sure the daemon is started with a good one — see the PATH
# lines in deploy/dev.ltms.bridged.plist and deploy/bridged.service.
#
# Adapter-owned variables always win over `env:`: ANTHROPIC_BASE_URL and the
# rest of the ANTHROPIC_*/CLAUDE_* wiring are applied after it, so an `env:`
# entry cannot repoint a worker past the SubscriptionGuard — which is checked
# against `baseUrl` alone.
# Put `defaultMode: "auto"` in each ccs profile so the worker runs autonomously.
profiles:
gx10: # ccs profile name (NOT a hostname)
kind: claude-code # which adapter spawns this profile (default; may omit)
baseUrl: http://gx01.gw:8000 # the vLLM host this profile targets (gx00.gw / gx01.gw)
model: coder
placement: tab
workspace: bridged-workers
# tabLabel: an optional per-profile override; the fleet template usually covers it
mcpUrl: http://127.0.0.1:8765/mcp
tokenEnv: BRIDGED_WORKER_TOKEN
argv: ["ccs", "gx10"]
weight: 0.5 # relative selection weight for placement: weighted
maxLoad: 2 # max live workers on this profile (omit for unlimited)
# gitTokenEnv: GITEA_TOKEN # opt-in: let this profile's workers open their own PR (CB-302)
# gitHostEnv: GITEA_HOST # defaults to GITEA_HOST; injected only with gitTokenEnv
# configDir: /Users/me/.ccs/instances/gx10 # CLAUDE_CONFIG_DIR — inherit that profile's skills/MCP
# cwd: /Users/me/src/myrepo # pin the working dir; omit to inherit the primary's
# parityOverlay: [".claude/settings.local.json", ".env", ".envrc"] # never add .mcp.json — see above
gx11: # a second backend, so `placement: weighted` has a choice
baseUrl: http://gx01.gw:8000 # self-hosted; ccs handles the model + token
placement: tab
workspace: bridged-workers
# tabLabel: an optional per-profile override; the fleet template usually covers it
mcpUrl: http://127.0.0.1:8765/mcp
argv: ["ccs", "gx11"]
weight: 0.5
maxLoad: 2
# Pin an auto-compact window BELOW the served model's context ceiling. The global
# ~/.claude/settings.json value is shared by every ccs instance and the primary, so the
# per-profile override belongs here. Equal to the ceiling means auto-compact never fires
# before the server rejects the prompt, which kills a worker mid-turn (CB-523).
env:
CLAUDE_CODE_AUTO_COMPACT_WINDOW: "280000"
# CB-402: a second coding-agent kind, proving the PeerLauncher SPI is provider-neutral.
# opencode is provider-agnostic and uses NONE of Claude's private seams: no ANTHROPIC_BASE_URL /
# SubscriptionGuard (so it needs no `guard` host entry), no --mcp-config / --append-system-prompt.
# The bridge MCP + reply charter mount via a generated OPENCODE_CONFIG file, and the model is a
# `provider/model` selector. Placement, tabs, cwd, and the readiness gate are shared with Claude.
#
# Dogfood-verified 2026-07-29 against opencode 1.18.5 (spawn → readiness gate → bridge_send →
# structured bridge_reply → teardown). The `opencode/*-free` models run on opencode's own gateway
# and need NO credentials — check `opencode models` for the current free list, since the names
# change. That also makes the worker off-subscription by construction.
# opencode-free:
# kind: opencode
# model: opencode/north-mini-code-free # `provider/model` selector, injected as `-m`
# placement: tab
# workspace: bridged-workers
# tabLabel: "opencode: {profile} #{n}"
# mcpUrl: http://127.0.0.1:8765/mcp
# argv: ["opencode"]
#
# CB-508: point an opencode profile at your OWN OpenAI-compatible endpoint (local vLLM, llama.cpp,
# LM Studio, TGI…) instead of opencode's gateway. Setting `baseUrl` on a `kind: opencode` profile
# makes the bridge emit a custom `provider` block into the generated opencode.json — opencode has
# no ANTHROPIC_BASE_URL seam, so this is how the endpoint is pinned.
# baseUrl → a bare host:port gets `/v1` appended (where these servers mount the API); a URL that
# already has a path is used verbatim, so a custom mount point still works.
# model → MUST be "<provider>/<model>". The provider half names the generated block; the model
# half must match an id the server reports at /v1/models. One field drives both the
# declaration and the `-m` flag, so they cannot drift apart. A bare model name with a
# baseUrl set is rejected at spawn rather than silently using the default gateway.
# tokenEnv → optional; its value becomes the provider apiKey. Most local servers ignore the key,
# so a placeholder is used when unset (the AI SDK still requires a non-empty one).
# NOTE: no `guard` entry is needed even with a baseUrl set. The SubscriptionGuard exists to stop a
# worker borrowing the primary's Anthropic subscription, and an opencode process has no Anthropic
# credential path at all.
# opencode-local:
# kind: opencode
# baseUrl: http://127.0.0.1:8000
# model: local-vllm/deepseek-v4-flash
# placement: tab
# workspace: bridged-workers
# tabLabel: "opencode: {profile} #{n}"
# mcpUrl: http://127.0.0.1:8765/mcp
# argv: ["opencode"]
# How an unqualified spawn chooses a profile: fixed (default, reproduces pre-CB-518 behaviour),
# round-robin, or weighted. Omitting this key is a strict no-op for existing configs.
placement: weighted
# Re-read this file without restarting the daemon (CB-559). Off unless you add this block, so an
# upgraded bridged keeps the old behaviour: the file is read once at boot and never again.
# enabled → turn the watch on. bridged checks the file's modified time on a timer and
# reloads when it moves.
# intervalSeconds → how often to check (default 10). One `stat` per tick, so this is cheap.
#
# Not every key can move under a running daemon, and the difference is about what already exists
# when the reload happens — not about how important the key is:
# HOT → takes effect on the next spawn: the whole `fleet:` block (every role pool,
# `charters`, and `tabLabel`), `placement:`, and an existing profile's weight / maxLoad. Those are
# hot because the placement policy reads them through a supplier — being config is
# not by itself enough to make a key hot.
# DEFERRED → accepted into the new config, but the wiring built at startup keeps the old value
# until you restart: `lifecycle:`, `leadHeartbeat:`, `guard:`, `worktreeRoot:`,
# `spawnReadyTimeoutMs` / `spawnReadyPollMs`, ADDING or REMOVING a profile (a new
# backend needs its own launcher, and launchers are built once), AND an existing
# profile's launch settings — model, baseUrl, argv, env, configDir, mcpUrl, tabLabel.
# The launcher takes a copy of `profiles:` at startup and resolves every spawn out of
# that copy, so those never reach a launch until you restart. The reload logs them by
# name rather than pretending they applied.
# COLD → cannot change at all: `bind:`, `herdrSocket:`, `broker:` and `auth:`. The socket is
# bound, the broker connection is open, and the auth mode decides who may reach the
# port that is already listening.
#
# A changed COLD key refuses the WHOLE reload — not the hot half applied and the cold half warned
# about. A half-applied reload would leave the daemon matching no file on disk, which is the worst
# thing a reload can do to an operator debugging one. A file that fails to parse or fails a startup
# validator is refused the same way, and the running config stays live.
# configReload:
# enabled: true
# intervalSeconds: 10
# THE FLEET (CB-557) — who the daemon may run, and under which role. This one block replaced four
# older keys: `leaders:`, `members:`, `leadScan:` and `defaultProfile:`.
#
# A member is anything a lead spawns, and every member has two INDEPENDENT attributes:
# role — which contract: architect, dev or reviewer. It picks the launch charter, the role
# file, the playbook skill and the authz row.
# profile — which backend: one of the `profiles:` keys above (model, CLI adapter, cost).
# They vary on their own. A reviewer may run on the same profile as the dev whose diff it reads,
# which is why the two cannot be one field.
#
# The ROLE IS THE CONTAINING KEY, not a `role:` field. That is not only tidier: a misspelled role
# used to parse into a member with no contract at all, while a misspelled pool name here simply
# declares nothing.
#
# Each pool lists the profiles that role MAY run on — these are pools, not identities. That is also
# what replaced `defaultProfile:`: an unqualified spawn names a role, and that role's pool supplies
# the candidates, in definition order. A dev and a reviewer staying anonymous is exactly compatible
# with being listed here; the entry key just names the entry.
fleet:
# Optional launch-charter text, keyed only by the singular role wire names: architect, dev,
# reviewer. Changes are HOT and reach the next spawn without a daemon restart. Do not put secrets
# here: a later launch step writes this text to a world-readable temp file, and ${ENV} interpolation
# is deliberately not supported.
charters:
architect: |-
You are an architect in this fleet. You refine work before anyone builds it:
scope, acceptance criteria, risks, and a unit split. You read the repo and
write analysis. You never commit production code and never open a PR.
A design task is worked by two architects. Design alone first, then exchange
and say plainly where you disagree. Do not concede just to agree.
dev: |-
You implement the one unit you were given, and nothing else. You test it,
commit it, and open your own pull request. You never merge.
reviewer: |-
You review the diff you were given. You report bugs, risks and missing tests.
You do not change code.
# Optional. Template for a member tab's label; {role}, {profile}, {model} and {n} are substituted.
# {n} counts per role+profile, so `dev: sonnet #2` really is the second sonnet dev. Because {role}
# comes from a closed enum, a generated label can never begin with a lead's tabPrefix.
# tabLabel: "{role}: {profile} #{n}"
# Panes that orchestrate rather than are orchestrated. A lead may now be CREATED as well as
# recognised: give it a `profile:` and the daemon launches the shortfall when fewer than
# `instances` are live. Give it only a `terminal:` and it is recognise-only, as before.
#
# `tabPrefix` is the naming convention that finds a lead without pasting a terminal id: label the
# tab `lead: <name>` when you open it and the pane is recognised on the next rescan. Reopen the
# tab later and the id changes; the label does not.
#
# A lead the daemon launches is labelled BY the daemon, using the same convention, so it is found
# by the same scan. A lead counts as live only when herdr also reports a running agent in that
# tab — a label left behind by a session that died does not block the relaunch.
#
# An auto-launched lead is NOT a member: it gets no worker reply charter, is never registered with
# the session lifecycle (the idle reaper would kill your orchestrator), and stays on the
# subscription — ANTHROPIC_BASE_URL/AUTH_TOKEN are stripped from its env whatever the profile says.
# leaders:
# opus-5.0:
# profile: opus # omit to never create this lead, only recognise it
# instances: 1 # desired live count; only the shortfall is launched. 0 = off
# terminal: term_0123456789abcd # optional hand-pin; usually found by tabPrefix instead.
# # A running agent on this terminal also counts as live, so a
# # lead you opened by hand is not relaunched under you.
# tabPrefix: "lead:" # `lead: opus-5.0` ⇒ a lead named opus-5.0 (case-insensitive)
# scanIntervalSeconds: 10 # rescan cadence, and the worst case before a new tab is seen
# workspace: leads # where a launched lead's tab is created (default "leads").
# # MUST NOT be a member workspace — those are excluded from the
# # scan, so a lead placed in one is never found again.
# cwd: /path/to/repo # the launched lead's working directory (default: bridged's own)
# kind: claude # descriptive; reported by bridge_whoami
# gpt-sol-5.6:
# terminal: term_fedcba9876543
# kind: opencode
# model: openai/gpt-5.6-terra
# architects:
# architect-1:
# profile: opus # a strong model, on the operator's subscription
# architect-2:
# profile: sol # a different vendor on purpose — two architects that share a
# # model share its blind spots
developers:
gx10:
profile: gx10
# reviewers:
# gx10:
# profile: gx10 # the same backend may serve two roles; that is the point
# Subscription boundary. A worker's base_url host MUST be one of these; the primary
# must carry none. Every profile above must have its host listed here.
guard:
offSubscriptionHosts:
- gx00.gw
- gx01.gw
# Spawn-readiness gate (CB-306). The launcher blocks until the worker's herdr status is
# injectable (IDLE/BLOCKED/DONE) or the timeout elapses. 0 disables the gate.
# NOTE: keys are camelCase — config is bound by plain Jackson with no naming strategy and
# unknown keys are ignored, so a snake_case key would be silently dropped (default kept).
# spawnReadyTimeoutMs: 20000
# spawnReadyPollMs: 300
# Worktree provisioning root (CB-301-ext). Where per-worker git worktrees are checked out so
# each worker owns an isolated branch instead of sharing the primary's tree. Omit to default
# to a sibling directory of the repo root.
# worktreeRoot: /Users/me/src/.bridged-worktrees
# Session lifecycle limits (CB-303). All knobs are opt-in; omit or set to null to keep
# the feature disabled. By default the daemon never reaps, caps, or drains sessions.
# idleTtlSeconds → reap READY/DONE sessions idle longer than this (never BUSY/SPAWNING)
# contextCap → force-release a session after this many delegated turns
# drainTimeoutSeconds → seconds to wait for BUSY sessions on shutdown before forced teardown
# lifecycle:
# idleTtlSeconds: 300
# contextCap: 10
# drainTimeoutSeconds: 5
# Durable reply delivery (CB-307 Stage 2). OMIT this block entirely to keep the default
# in-memory, soft-state reply inbox (late worker replies are held only until a daemon bounce).
# Set a broker uri to swap in the AMQP-backed inbox: worker replies with no open send are held
# on a durable per-target queue (agent.<target>.inbox) and survive a restart — the broker
# redelivers anything the primary had not yet drained. Production default is LavinMQ; a stock
# RabbitMQ speaks the same AMQP 0-9-1, so it is a URI-only swap.
# uri → AMQP connection URI. No trailing slash ⇒ the default vhost "/"; an empty path ("/")
# is vhost "" and will NOT connect. Encode a named vhost as .../%2Fmyvhost.
# broker:
# uri: amqp://guest:guest@127.0.0.1:5672
# Active push-to-primary (CB-307 Stage 3). When a worker reply lands with no open bridge_send,
# the ReplyPushLoop injects a *drain nudge* (never the payload) into the primary's own herdr
# pane — status-gated (only when injectable, never mid-turn) and bounded. Ack = drain: the loop
# stops as soon as the primary's inbox is empty.
# terminal → pin the primary's herdr terminal id. Omit to learn it from the connection on
# the first orchestration-side MCP call (the normal case). An off-host or
# non-herdr primary leaves this unresolved → the loop is a no-op and delivery
# degrades to pull; the reply is still never lost.
#
# REQUIRED (CB-522) if the primary itself runs inside a herdr pane. Caller
# identity resolves a loopback PID to its herdr pane, and PaneLocator scans
# EVERY pane — not just bridged-spawned ones — so such a primary is otherwise
# classified as a WORKER and refused SPAWN/SEND/STOP. That failure is
# self-locking: the learned terminal is populated by the very orchestration
# calls being refused, so only this pinned value can break the cycle. Read the
# id off bridge_whoami (it reports the current terminal even while
# misclassified) and re-pin whenever the primary moves panes.
# pushReminders → max nudges before giving up (default 5)
# pushBackoffMs → delay between nudges in ms (default 15000)
# primary:
# terminal: term_65619bd6174568
# pushReminders: 5
# pushBackoffMs: 15000
@@ -5,10 +5,10 @@
## Why this exists
Stage 2 gave a worker→primary reply a **durable place to wait** when no `fleet_send` is
Stage 2 gave a worker→primary reply a **durable place to wait** when no `bridge_send` is
open: it lands in `agent.<target>.inbox` on the broker and survives a daemon bounce. But
delivery is still **pull** — the primary only sees the reply if it happens to call
`fleet_poll(target)` / `GET /sessions/{id}/replies`. A reply can sit indefinitely while
`bridge_poll(target)` / `GET /sessions/{id}/replies`. A reply can sit indefinitely while
the primary works on something else.
This layer makes delivery **active**: the bridge *pushes* a nudge to the primary the moment
@@ -26,11 +26,11 @@ pointed at the primary's pane instead.
```mermaid
flowchart LR
W["worker"] -->|"fleet_reply (no open send)"| MS["MessageService.reply"]
W["worker"] -->|"bridge_reply (no open send)"| MS["MessageService.reply"]
MS -->|"inbox.publish"| INBOX[("agent.&lt;target&gt;.inbox<br/>(durable, LavinMQ)")]
MS -->|"notify"| LOOP["ReplyPushLoop"]
LOOP -->|"status-gated inject"| PANE["primary's herdr pane"]
PANE -->|"primary drains"| DRAIN["fleet_poll(target)<br/>= peek + ack"]
PANE -->|"primary drains"| DRAIN["bridge_poll(target)<br/>= peek + ack"]
DRAIN -->|"inbox now empty"| LOOP
LOOP -.->|"still non-empty →<br/>re-inject on backoff"| PANE
classDef store fill:#2c5282,stroke:#1a365d,color:#ffffff;
@@ -51,13 +51,13 @@ the caller runs in a herdr pane on this host. Today it's discarded for the prima
(`presence.markPresent` is a no-op on it).
**Plan:** a single-slot `PrimaryRegistry` (thread-safe) holding the primary's `terminal_id`.
Populate it from the **orchestration-side** MCP tools — `fleet_send`, `fleet_spawn`,
`fleet_poll`, `fleet_list`, `fleet_status`, `fleet_profiles` — capturing
Populate it from the **orchestration-side** MCP tools — `bridge_send`, `bridge_spawn`,
`bridge_poll`, `bridge_list`, `bridge_status`, `bridge_profiles` — capturing
`callerTerminal(exchange)` when it is (a) non-null and (b) **not** a registered worker
session in `SessionManager`. That caller is, by construction, the primary. Worker-side tools
(`fleet_reply`, `fleet_ask`) never set it.
(`bridge_reply`, `bridge_ask`) never set it.
- **Config override / pin:** a `primary: { terminal: "<id>" }` block in `FleetConfig`
- **Config override / pin:** a `primary: { terminal: "<id>" }` block in `BridgedConfig`
(nested record, same shape as `Broker`). Lets an operator pin it, or supply it when
derivation can't (see degrade case).
- **Degrade:** if the primary is off-host or in a non-herdr terminal, `terminalForPid`
@@ -71,13 +71,13 @@ A `ReplyPushLoop` component, notified at the single no-waiter call site
(`MessageService.reply` → the `inbox.publish` branch, `MessageService.java:192`).
- **Inject a nudge, not the payload.** The injected turn tells the primary *to drain*
(e.g. "Worker `<target>` returned a reply — run `fleet_poll(target=<target>)` to collect
(e.g. "Worker `<target>` returned a reply — run `bridge_poll(target=<target>)` to collect
it"), it does **not** carry the reply text. Rationale: replies can be large/multiline and
terminal injection would mangle them; the drain response is the clean transport. Keeps the
push idempotent — re-nudging is harmless.
- **Ack = drain.** The primary draining (`drainReplies` = peek + ack) is the acknowledgement.
The loop's **stop condition is `inbox.peek(target).isEmpty()`** — the reply is gone from the
inbox because it was acked. No new `fleet_ack` tool needed for v1 (see Increment 3).
inbox because it was acked. No new `bridge_ack` tool needed for v1 (see Increment 3).
- **Status-gated injection (mechanism (b), chosen).** A dedicated lightweight scheduled loop,
**not** the worker `Injector`. It injects via `AgentControl.send(primaryTerminal, nudge)`
(the same herdr `agent.send` = `pane send-text` + submit that delivers to workers) only when
@@ -93,10 +93,10 @@ A `ReplyPushLoop` component, notified at the single no-waiter call site
the reply remains in the durable inbox and the next natural poll (or a later worker reply's
nudge) still surfaces it. Bounded so the bridge never spams the primary.
### Increment 3 — optional per-`msgId` `fleet_ack` tool (deferred)
### Increment 3 — optional per-`msgId` `bridge_ack` tool (deferred)
Drain-as-ack is coarse: it clears *all* pending replies for a target at once. If finer
control is ever needed (ack one reply, leave others held), add a `fleet_ack(msgId)` tool
control is ever needed (ack one reply, leave others held), add a `bridge_ack(msgId)` tool
mapping to `inbox.ack(target, msgId)` — the port already supports per-`msgId` ack. Not built
in v1; the stop-on-empty loop is sufficient.
@@ -106,7 +106,7 @@ in v1; the stop-on-empty loop is sufficient.
resolved terminal is non-null **and not a registered worker session**, seen on an
orchestration-side tool. This never mislabels a worker (workers are in `SessionManager`)
and needs no new env var or argument (identity stays connection-derived, per the existing
`FleetMcp` invariant).
`BridgeMcp` invariant).
2. **Readiness-gate mismatch → dedicated loop.** The existing `Injector` gates delivery on
`ready.test(target)` = `WorkerPresence` (the *worker's* MCP connected). The primary is not
@@ -132,7 +132,7 @@ boundary**. The bridge is signalling the primary that it has mail — not drivin
non-null terminal AND not a registered session" predicate; the loop's stop-on-empty and
bounded-reminder logic with an injected clock + a fake injector (no real herdr).
- **Live dogfood (primary-side):** with the daemon on the broker jar + a real worker,
delegate a task, let the worker reply after the `fleet_send` window closes, and observe the
delegate a task, let the worker reply after the `bridge_send` window closes, and observe the
bridge inject a drain nudge into *this* primary pane; confirm draining stops the reminders;
confirm an unreachable primary (registry empty) degrades to pull with no loss.
+7 -28
View File
@@ -5,17 +5,17 @@
<modelVersion>4.0.0</modelVersion>
<groupId>dev.ltms</groupId>
<artifactId>fleetd</artifactId>
<artifactId>bridged</artifactId>
<version>1.0.0</version>
<packaging>jar</packaging>
<name>fleetd</name>
<description>fleet message server: sole gateway between a lead session, its members, and herdr</description>
<name>bridged</name>
<description>claude-bridge message server: sole gateway between primary/worker Claude sessions and herdr</description>
<properties>
<maven.compiler.release>25</maven.compiler.release>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<mainClass>dev.ltms.fleet.Fleetd</mainClass>
<mainClass>dev.ltms.bridged.Bridged</mainClass>
<jackson.version>2.19.0</jackson.version>
<javalin.version>6.7.0</javalin.version>
@@ -28,7 +28,6 @@
<testcontainers.version>1.20.4</testcontainers.version>
<commons-compress.version>1.27.1</commons-compress.version>
<commons-lang3.version>3.18.0</commons-lang3.version>
<sqlite-jdbc.version>3.53.4.0</sqlite-jdbc.version>
</properties>
<!--
@@ -45,12 +44,6 @@
3.0-rc5; bumping Jackson 3 to the patched 3.2.x breaks the SDK (annotation mismatch).
Only the loopback /mcp endpoint parses this JSON, from trusted local Claude clients.
The 11.0.23 -> 11.0.25 bump did clear jetty CVE-2024-8184 (5.9) and CVE-2024-6763.
fleetd #206: org.xerial:sqlite-jdbc 3.53.4.0 (added for OpenCodeSessionDiscovery) — the
only known advisory against this artifact is CVE-2023-32697 (RCE via an attacker-controlled
JDBC URL), fixed in 3.41.2.2; 3.53.4.0 is well past that fix and OSV.dev reports no open
advisory against it. Checked via the OSV.dev API (no Mend.io/JetBrains IDE MCP mount
available from this worktree) on 2026-08-31.
-->
<!-- Force the latest patched Jetty 11.x across all Javalin-pulled Jetty modules (no version
@@ -113,7 +106,7 @@
</dependency>
<!-- MCP server: the SERVER face. Streamable-HTTP servlet mounted on Javalin's Jetty at
/mcp, exposing fleet_send/fleet_reply/fleet_status as thin adapters over REST. -->
/mcp, exposing bridge_send/bridge_reply/bridge_status as thin adapters over REST. -->
<dependency>
<groupId>io.modelcontextprotocol.sdk</groupId>
<artifactId>mcp</artifactId>
@@ -130,17 +123,6 @@
<version>${amqp.version}</version>
</dependency>
<!-- fleetd #206: opencode moved its session store from a JSON tree to SQLite
(opencode.db). This is the JDBC driver OpenCodeSessionDiscovery uses to read it
read-only. Ships bundled native libraries (linux/mac/windows, several archs), so it
is a heavier jar than most deps here — see the pom's dependency-security note below
for the size/CVE tradeoff actually measured. -->
<dependency>
<groupId>org.xerial</groupId>
<artifactId>sqlite-jdbc</artifactId>
<version>${sqlite-jdbc.version}</version>
</dependency>
<!-- Logging -->
<dependency>
<groupId>org.slf4j</groupId>
@@ -179,10 +161,7 @@
</dependencies>
<build>
<!-- CB-634: the cutover renamed the module dir (bridged/ -> fleetd/), the jar, and the
launchd plist together. The installed plist names fleetd/target/fleetd.jar and
KeepAlive is armed, so this name, the plist, and the wrapper must move as one. -->
<finalName>fleetd</finalName>
<finalName>bridged</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
@@ -224,7 +203,7 @@
</configuration>
</plugin>
<!-- Runnable fat jar: java -jar target/fleetd.jar -->
<!-- Runnable fat jar: java -jar target/bridged.jar -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
@@ -0,0 +1,536 @@
package dev.ltms.bridged;
import dev.ltms.bridged.config.BridgedConfig;
import dev.ltms.bridged.config.ConfigRef;
import dev.ltms.bridged.config.ConfigWatcher;
import dev.ltms.bridged.guard.SubscriptionGuard;
import dev.ltms.bridged.herdr.AgentControl;
import dev.ltms.bridged.herdr.HerdrClient;
import dev.ltms.bridged.herdr.HerdrException;
import dev.ltms.bridged.herdr.LeadTabScanner;
import dev.ltms.bridged.lead.LeadLauncher;
import dev.ltms.bridged.herdr.PaneLocator;
import dev.ltms.bridged.herdr.UnixSocketHerdrClient;
import dev.ltms.bridged.herdr.WorkspaceControl;
import dev.ltms.bridged.inject.CompletionResolver;
import dev.ltms.bridged.inject.Injector;
import dev.ltms.bridged.inject.StatusPoller;
import dev.ltms.bridged.inject.TurnListener;
import dev.ltms.bridged.inject.MemberPresence;
import dev.ltms.bridged.auth.MemberRegistry;
import dev.ltms.bridged.auth.CallerResolver;
import dev.ltms.bridged.mcp.BridgeMcp;
import dev.ltms.bridged.mcp.ConnectionIdentity;
import dev.ltms.bridged.metrics.BridgedMetrics;
import dev.ltms.bridged.metrics.Metrics;
import dev.ltms.bridged.health.FleetHealthMonitor;
import dev.ltms.bridged.mcp.PrimaryRegistry;
import dev.ltms.bridged.mcp.LsofPeerPidLookup;
import dev.ltms.bridged.mcp.LsofProcessCwdLookup;
import dev.ltms.bridged.msg.AmqpReplyInbox;
import dev.ltms.bridged.msg.InMemoryReplyInbox;
import dev.ltms.bridged.msg.MessageService;
import dev.ltms.bridged.msg.Rendezvous;
import dev.ltms.bridged.msg.ReplyInbox;
import dev.ltms.bridged.msg.LeadHeartbeatLoop;
import dev.ltms.bridged.msg.ReplyPushLoop;
import dev.ltms.bridged.rest.BridgedApp;
import dev.ltms.bridged.session.GitWorktrees;
import dev.ltms.bridged.session.SessionManager;
import dev.ltms.bridged.peer.PeerLauncher;
import dev.ltms.bridged.session.SessionReaper;
import dev.ltms.bridged.member.ClaudeCodeLauncher;
import dev.ltms.bridged.member.CompositePeerLauncher;
import dev.ltms.bridged.member.HerdrPeerLauncher;
import dev.ltms.bridged.member.OpenCodeLauncher;
import io.javalin.Javalin;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.nio.file.Path;
import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Set;
import java.util.concurrent.Executors;
import java.util.concurrent.atomic.AtomicReference;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicReference;
import java.util.function.Function;
import java.util.function.Predicate;
import java.util.function.Supplier;
import java.util.stream.Collectors;
/**
* {@code bridged} entry point. Wires the real herdr socket client to the REST app and
* starts listening. Before anything else it asserts its own environment is clean —
* {@code bridged} is not a Claude process and must never carry a base_url.
*/
public final class Bridged {
private static final Logger log = LoggerFactory.getLogger(Bridged.class);
/** CB-504: how long to wait at startup for herdr's socket before serving degraded. */
private static final long HERDR_WAIT_SECONDS = 30;
private static final long HERDR_WAIT_POLL_MILLIS = 500;
static void main(String[] args) {
Path configPath = Path.of(args.length > 0 ? args[0] : "bridged.yaml");
BridgedConfig cfg = BridgedConfig.load(configPath);
// CB-559: `cfg` stays the startup snapshot — every validation and every piece of one-time
// wiring below reads it, and must, because those decisions cannot be unmade. `config` is the
// live reference the hot paths read per use. Which keys can actually move is ConfigRef's
// contract; adding a reader here does not make a key reloadable by itself.
ConfigRef config = new ConfigRef(configPath, cfg);
// The primary/host env that launched bridged must not be tainted.
SubscriptionGuard guard = new SubscriptionGuard(cfg.guard().hostSet());
guard.assertPrimaryClean(System.getenv());
// CB-501: refuse to start if the bind is wider than the auth mode can defend. Under
// loopback-trust, "not a known worker" means "the primary" — sound only because the OS
// refuses remote connections to a loopback socket. This throws rather than warns so the
// dangerous configuration cannot be reached by ignoring a log line.
cfg.validateAuthExposure();
cfg.validateLeadTabPrefixes();
// CB-542: a subscription:true profile whose env: reseats ANTHROPIC_BASE_URL/AUTH_TOKEN would
// reach an unguarded endpoint (the launcher skips SubscriptionGuard for it). Refuse at load.
cfg.validateSubscriptionProfiles();
cfg.validateCharters();
// CB-548: every architect slot must name a configured workers: profile — the strong-model
// backend the future spawn lifecycle would read. A stale reference dies here, not later.
cfg.validateMembers();
Path socket = cfg.herdrSocket() != null && !cfg.herdrSocket().isBlank()
? Path.of(cfg.herdrSocket())
: UnixSocketHerdrClient.defaultSocketPath();
UnixSocketHerdrClient herdr = UnixSocketHerdrClient.connect(socket, new com.fasterxml.jackson.databind.ObjectMapper());
AgentControl agents = new AgentControl(herdr);
WorkspaceControl spaces = new WorkspaceControl(herdr);
// CB-402: one adapter per configured peer kind, fronted by a composite router. A profile's
// `kind:` selects its adapter — claude-code (the default) and opencode partition the profile
// set — and the composite dispatches each SPI call to the adapter that owns the profile/pane.
Map<String, BridgedConfig.Profile> claudeProfiles = new LinkedHashMap<>();
Map<String, BridgedConfig.Profile> opencodeProfiles = new LinkedHashMap<>();
cfg.profiles().forEach((name, w) -> {
if (w.isOpenCode()) {
opencodeProfiles.put(name, w);
} else {
claudeProfiles.put(name, w);
}
});
List<HerdrPeerLauncher> adapters = new ArrayList<>();
// The claude-code adapter is the always-present default; keep it even with no profiles (so a
// bridge configured with no workers, or opencode-only, still has a well-defined base adapter)
// unless opencode is the only kind configured.
if (!claudeProfiles.isEmpty() || opencodeProfiles.isEmpty()) {
adapters.add(new ClaudeCodeLauncher(agents, spaces, guard,
claudeProfiles, cfg.effectiveDefaultProfile(), System::getenv,
cfg.spawnReadyTimeoutMs(), cfg.spawnReadyPollMs(),
() -> config.get().fleet()));
}
if (!opencodeProfiles.isEmpty()) {
adapters.add(new OpenCodeLauncher(agents, spaces,
opencodeProfiles, cfg.effectiveDefaultProfile(), System::getenv,
cfg.spawnReadyTimeoutMs(), cfg.spawnReadyPollMs(),
() -> config.get().fleet()));
}
AtomicReference<Function<String, Integer>> liveCountRef = new AtomicReference<>(_ -> 0);
PeerLauncher workers = new CompositePeerLauncher(
adapters,
cfg.effectiveDefaultProfile(),
config,
profileName -> liveCountRef.get().apply(profileName));
// CB-504: under supervision (launchd/systemd) bridged can start before herdr's socket
// exists. The client itself is lazy — it connects per call — but the orphan reap below is
// the first thing that actually talks to herdr, so without this wait a boot-order race
// would crash the daemon into a restart loop. Wait, then degrade rather than die: serving
// with /healthz reporting "degraded" is strictly more useful than exiting.
boolean herdrUp = awaitHerdr(herdr);
if (herdrUp) {
// CB-117: herdr keeps worker panes alive across a daemon restart, and their ids died
// with the previous process — reap those leaked orphans now, before we start serving.
workers.reapOrphanWorkers();
} else {
log.warn("herdr did not answer within {}s — starting anyway; /healthz will report "
+ "degraded until it comes up. Orphaned worker panes (if any) were NOT reaped.",
HERDR_WAIT_SECONDS);
}
// CB-301: authoritative session registry + lifecycle FSM on top of ClaudeCodeLauncher.
// CB-301-ext: worktree provisioning seam, optionally rooted at a configured directory.
// CB-303 part 2: context cap is opt-in and disabled (0) when absent/null.
int contextCap = 0;
if (cfg.lifecycle() != null && cfg.lifecycle().contextCap() != null
&& cfg.lifecycle().contextCap() > 0) {
contextCap = cfg.lifecycle().contextCap();
}
boolean clearAfterTurn = cfg.lifecycle() != null && cfg.lifecycle().clearAfterTurn();
SessionManager sessions = new SessionManager(workers, new GitWorktrees(cfg.worktreeRoot()),
System::nanoTime, contextCap, clearAfterTurn);
liveCountRef.set(profileName -> (int) sessions.roster().stream()
.filter(s -> profileName.equals(s.profile()))
.count());
// CB-303 part 1: idle-ttl reaper — only when configured, defaults to disabled.
final SessionReaper reaper;
if (cfg.lifecycle() != null
&& cfg.lifecycle().idleTtlSeconds() != null
&& cfg.lifecycle().idleTtlSeconds() > 0) {
reaper = new SessionReaper(sessions, cfg.lifecycle().idleTtlSeconds());
reaper.start();
} else {
reaper = null;
}
// CB-530: every pane the config names as a lead, merged from `leaders:` and the legacy
// singular pin. PrimaryRegistry below still tracks ONE terminal — it addresses the push
// loop's nudges, which need a single destination — so it keeps the legacy pin.
Map<String, String> leadTerminals = cfg.leaderTerminals();
if (leadTerminals.size() > 1) {
log.info("leads: {} panes recognised {}", leadTerminals.size(), leadTerminals.values());
}
// CB-531: on top of the static registry, discover leads by the tab labels the operator
// writes. CB-557 moved the settings onto the lead they describe, so scanning is on whenever
// a `fleet.leaders:` entry exists — with no leads configured the supplier is a constant and
// never touches herdr, exactly as a missing `leadScan:` block used to behave.
final Supplier<Map<String, String>> leads;
var leaders = cfg.fleet().leaders();
if (!leaders.isEmpty()) {
// One scanner, so one prefix and one interval. Distinct per-lead prefixes would need a
// scanner each; until a config actually wants that, take the first entry's settings and
// say so, rather than silently honouring one lead's prefix and dropping another's.
var scan = leaders.values().iterator().next();
Set<String> memberSpaces = cfg.profiles().values().stream()
.map(BridgedConfig.Profile::workspace)
.filter(Objects::nonNull)
.collect(Collectors.toSet());
leads = new LeadTabScanner(herdr, scan.tabPrefix(), memberSpaces, leadTerminals,
TimeUnit.SECONDS.toNanos(scan.scanIntervalSeconds()), System::nanoTime);
log.info("lead scan: tabs labelled '{}…' host a lead (rescan every {}s, member spaces {} "
+ "excluded)",
scan.tabPrefix(), scan.scanIntervalSeconds(), memberSpaces);
long distinctPrefixes = leaders.values().stream()
.map(BridgedConfig.Leader::tabPrefix).distinct().count();
if (distinctPrefixes > 1) {
log.warn("fleet.leaders declares {} different tabPrefix values; only '{}' is scanned "
+ "for. Give every lead the same tabPrefix, or leads under the others "
+ "will not be discovered.",
distinctPrefixes, scan.tabPrefix());
}
} else {
leads = () -> leadTerminals;
}
// CB-558: start any declared lead that is not already running. After the scanner is built,
// because both read the same tab labels and the ordering makes that dependency visible; and
// only when herdr answered, because the launcher's whole safety property is that it can
// count live leads first — it must never guess and risk a second orchestrator.
if (herdrUp && !leaders.isEmpty()) {
int launched = new LeadLauncher(agents, spaces, cfg).ensureLeads();
if (launched > 0) {
log.info("lead auto-launch: {} lead(s) started", launched);
}
}
// CB-548: config-declared architect slots. Config supplies only the stable name → profile
// map; the terminal → slot binding is owned by the registry and is empty at startup, so no
// pane resolves to an architect until the later spawn lifecycle binds one. The registry is
// what CallerResolver resolves against and what that lifecycle will read profiles from;
// nothing here spawns a slot.
MemberRegistry members = new MemberRegistry(cfg.fleet());
sessions.setMemberLifecycle(members);
if (!members.slots().isEmpty()) {
log.info("member slots: {} configured {} — none bound yet (a slot is idle until the "
+ "spawn lifecycle binds a live terminal to it)",
members.slots().size(), members.slots().keySet());
}
// Status-gated injector (CB-103): the single writer into workers, fed by a poller.
// The blocking message endpoint (CB-104) is the producer; the poller is inert until then.
// CB-106: a confirmed turn completion resolves a blocked send whose worker never replied.
Rendezvous rendezvous = new Rendezvous();
CompletionResolver completion = new CompletionResolver(agents, rendezvous);
AtomicReference<MessageService> messagesRef = new AtomicReference<>();
// CB-113: deliver only to an available worker (its MCP is connected), never its boot window.
// CB-301: the manager's presence bridge records availability and drives SPAWNING → READY.
MemberPresence presence = sessions.asPresence();
TurnListener turnListener = new TurnListener() {
@Override
public void onTurnComplete(String target) {
completion.onTurnComplete(target);
sessions.onTurnComplete(target);
}
@Override
public boolean hasPostTurnAction(String target) {
return sessions.hasPostTurnAction(target);
}
@Override
public boolean onTurnCompleteWithPostAction(String target) {
completion.resolveBeforePostAction(target);
return sessions.onTurnCompleteWithPostAction(target);
}
@Override
public void onDelivered(String target) {
completion.onDelivered(target);
sessions.onDelivered(target);
}
@Override
public void onTurnFailed(String target) {
completion.onTurnFailed(target);
sessions.onTurnFailed(target);
failTarget(messagesRef, target, "worker turn failed");
}
@Override
public void onTurnFailed(String target, String reason) {
completion.onTurnFailed(target, reason);
sessions.onTurnFailed(target);
failTarget(messagesRef, target, reason);
}
};
Injector injector = new Injector(agents, turnListener, deliverableTo(presence, leads),
presence::forget);
StatusPoller poller = new StatusPoller(agents, injector, Injector.POLL_INTERVAL_MILLIS);
poller.start();
// CB-307: reply inbox. A broker: block (with a uri) selects the AMQP-backed durable adapter;
// absent, bridged stays soft-state on the in-memory inbox. The AMQP inbox owns a broker
// connection, so keep the reference to close it in the ordered shutdown hook.
final ReplyInbox replyInbox;
if (cfg.broker() != null && cfg.broker().isConfigured()) {
replyInbox = AmqpReplyInbox.open(cfg.broker().uri());
log.info("reply inbox: AMQP broker (durable) at {}", cfg.broker().uri());
} else {
replyInbox = new InMemoryReplyInbox();
log.info("reply inbox: in-memory (soft-state)");
}
// CB-307: learn the primary's terminal from orchestration tool calls (or pin from config).
// The pin also feeds CallerResolver below: a primary running inside a herdr pane would
// otherwise resolve as a worker and be refused every orchestration tool.
String pinnedPrimaryTerminal = cfg.primary() != null ? cfg.primary().terminal() : null;
PrimaryRegistry primaryRegistry = new PrimaryRegistry(pinnedPrimaryTerminal);
// CB-532: `primary.terminal` is superseded and no longer needed for either of its jobs —
// identity comes from `leaders:`/`leadScan:`, and reply nudges now follow the delegating
// lead. Say so once at startup rather than leaving a redundant pin to look load-bearing.
if (pinnedPrimaryTerminal != null && !pinnedPrimaryTerminal.isBlank()) {
log.warn("primary.terminal is DEPRECATED (CB-532) and can be deleted: identity now comes "
+ "from leaders:/leadScan:, and reply nudges follow the lead that delegated. "
+ "It still works, and is still the fallback nudge destination when a restart "
+ "has lost the delegation map. Its pushReminders/pushBackoffMs stay valid.");
}
// CB-307: active push-to-primary loop — nudge the primary when replies land without an
// open bridge_send. Uses its own lightweight scheduled executor, separate from the injector.
int maxReminders = cfg.primary() != null ? cfg.primary().remindersOrDefault() : 5;
long backoffMs = cfg.primary() != null ? cfg.primary().backoffMsOrDefault() : 15_000L;
var pushScheduler = Executors.newSingleThreadScheduledExecutor(r ->
Thread.ofVirtual().name("bridge-push-").unstarted(r));
// CB-502: the registry is built before the service and the push loop so send/reply outcomes
// are counted at their single funnel rather than at each of the two caller-facing surfaces.
// CB-512: the push loop takes it too, so nudge outcomes (delivered|exhausted) are counted.
Metrics metrics = BridgedMetrics.create(sessions, replyInbox);
var pushLoop = new ReplyPushLoop(primaryRegistry, agents, replyInbox,
pushScheduler, maxReminders, backoffMs, metrics);
// CB-551: idle-lead heartbeat. Opt-in; absent `leadHeartbeat:` this is never constructed, so
// an upgraded daemon cannot silently start spending subscription on nudging an idle lead.
// It has its own single-thread scheduler and holds its own scheduler shutdown via close().
final LeadHeartbeatLoop heartbeat;
var heartbeatScheduler = Executors.newSingleThreadScheduledExecutor(r ->
Thread.ofVirtual().name("bridge-heartbeat-").unstarted(r));
if (cfg.leadHeartbeat() != null) {
var hb = cfg.leadHeartbeat();
heartbeat = new LeadHeartbeatLoop(primaryRegistry, agents, replyInbox, sessions::roster,
pushLoop, heartbeatScheduler, System::nanoTime,
TimeUnit.SECONDS.toNanos(hb.idleAfterSeconds()), hb.backoffMs(), hb.quietNudgeCap(),
metrics);
heartbeat.start();
} else {
heartbeat = null;
heartbeatScheduler.shutdownNow();
}
MessageService messages = new MessageService(agents, injector, rendezvous, replyInbox,
pushLoop, metrics);
messagesRef.set(messages);
// Health is a slow whole-fleet observer. Keep it separate from the 250ms delivery poller.
final FleetHealthMonitor healthMonitor;
var healthScheduler = Executors.newSingleThreadScheduledExecutor(r ->
Thread.ofVirtual().name("bridge-health-").unstarted(r));
if (cfg.health() != null && cfg.health().isEnabled()) {
healthMonitor = new FleetHealthMonitor(agents, sessions::roster, messages, healthScheduler,
System::nanoTime, cfg.health().intervalOrDefault(), messages::abandon);
String coverage = FleetHealthMonitor.coverage(true,
cfg.health().notifications() != null && cfg.health().notifications().configured());
if ("detection-only".equals(coverage)) {
log.warn("fleet health: {} (no notification sink configured)", coverage);
} else {
log.info("fleet health: {}", coverage);
}
healthMonitor.start();
} else {
healthMonitor = null;
healthScheduler.shutdownNow();
}
// CB-520: the reply inbox only consumes for agents this gateway owns. own on acquire,
// release on teardown. Do this before CB-516 so the inbox is owned before any reply can land.
sessions.onAcquire(replyInbox::own);
// CB-516: releasing a worker must fail whatever send was waiting on it. Without this a
// torn-down delegation kept reporting PENDING until the 30-minute async timeout, and never
// reached /metrics — the delegation was unresolvable and nothing said so.
sessions.onRelease(terminal -> {
messages.abandon(terminal, "the worker session was released before it replied");
replyInbox.release(terminal);
primaryRegistry.forgetDelegation(terminal); // CB-532: don't leak the lead binding
});
// MCP server face (CB-105): bridge_send/bridge_reply/bridge_status, mounted at /mcp.
// Caller identity is resolved from the connection (peer PID → herdr pane), not arguments.
ConnectionIdentity identity = new ConnectionIdentity(
new PaneLocator(herdr), new LsofPeerPidLookup(), new LsofProcessCwdLookup());
// CB-501: one resolver behind both entry paths. Worker identity still comes from the
// connection and is never token-gated, so enabling token mode cannot lock the fleet out.
final CallerResolver callers;
if (cfg.auth().tokenMode()) {
String token = System.getenv(cfg.auth().tokenEnv());
if (token == null || token.isBlank()) {
throw new IllegalStateException("auth.mode=token but env var " + cfg.auth().tokenEnv()
+ " is unset or empty — export it before starting bridged");
}
callers = CallerResolver.withLeadsAndMembers(identity, true, token, leads, members);
log.info("auth: token mode (bearer required for non-worker callers, env {})",
cfg.auth().tokenEnv());
} else {
callers = CallerResolver.withLeadsAndMembers(identity, false, null, leads, members);
log.info("auth: loopback-trust (any loopback non-worker caller is the primary)");
}
BridgeMcp mcp = new BridgeMcp(messages, workers, sessions, identity, presence,
primaryRegistry, callers, metrics, new BridgeMcp.CapacitySource(profile -> liveCountRef.get().apply(profile),
profile -> {
var configured = config.get().profiles().get(profile);
return configured == null ? null : configured.maxLoad();
}, () -> config.get().profiles().keySet(), System::nanoTime),
new BridgeMcp.HealthCoverageSource(() -> {
var health = config.get().health();
return FleetHealthMonitor.coverage(health != null && health.isEnabled(),
health != null && health.notifications() != null && health.notifications().configured());
}));
// CB-559: opt-in config reload. With no `configReload:` block nothing is constructed, so an
// upgraded daemon behaves exactly as before — the file is read once at boot and never again.
final ConfigWatcher configWatcher;
if (cfg.configReload() != null && cfg.configReload().isEnabled()) {
configWatcher = new ConfigWatcher(config, cfg.configReload().intervalSeconds());
configWatcher.start();
} else {
configWatcher = null;
}
// CB-303 part 3: single ordered shutdown hook. Drain sessions first while herdr is still
// open (so releases reach the daemon), then stop poller/message/mcp/reaper, and close herdr
// last. This replaces the earlier independent hooks that could race and close herdr early.
Runtime.getRuntime().addShutdownHook(new Thread(() -> {
sessions.close(cfg.lifecycle() != null ? cfg.lifecycle().drainTimeoutSeconds() : null);
poller.stop();
messages.close();
pushLoop.close();
if (heartbeat != null) heartbeat.close(); // CB-551: stop the idle-lead heartbeat scheduler
if (healthMonitor != null) healthMonitor.stop();
if (configWatcher != null) configWatcher.stop(); // CB-559: stop polling the config file
mcp.close();
if (reaper != null) reaper.stop();
// Release the broker connection last among message resources (no-op for the in-memory inbox).
if (replyInbox instanceof AutoCloseable closeable) {
try {
closeable.close();
} catch (Exception e) {
log.debug("reply inbox close: {}", e.toString());
}
}
herdr.close();
}));
Javalin app = new BridgedApp(herdr, workers, sessions, messages, presence, mcp.servlet(),
callers, metrics).build();
app.start(cfg.bind().host(), cfg.bind().port());
log.info("bridged listening on {}:{}, herdr socket {}",
cfg.bind().host(), cfg.bind().port(), socket);
}
/**
* The {@link Injector}'s readiness gate (CB-534): a target is deliverable if it is a spawned
* member whose agent has connected the bridge MCP, <em>or</em> a lead.
*
* <p>The gate exists for one reason — to hold a delivery out of a <em>spawned</em> member's boot
* window, where herdr already reports {@code idle} but the TUI would drop an injected paste. That
* hazard is a property of spawning. A lead is never spawned: the operator started it and named it
* (or labelled its tab) only once it was up, so there is no boot window to guard.
*
* <p>A lead is also never enrolled in {@link MemberPresence} — {@code BridgeMcp} marks presence
* for every spawned member (worker and architect), deliberately, since that map doubles as the
* member roster's availability signal and a lead counted there would show up as an available
* member. So without the second disjunct a lead is permanently un-deliverable: every
* lead→lead send sat on the gate for {@code READINESS_GRACE_POLLS} (~60s) and then failed
* having never been typed into the pane.
*
* <p>The lead set is read through the supplier on each call rather than snapshotted, so a lead
* discovered by {@code leadScan} after startup becomes deliverable without a restart.
*/
static Predicate<String> deliverableTo(MemberPresence presence, Supplier<Map<String, String>> leads) {
return target -> presence.isPresent(target) || leads.get().containsKey(target);
}
/** Fail outstanding tickets without changing the member lifecycle or worktree state. */
private static void failTarget(AtomicReference<MessageService> messagesRef, String target, String reason) {
MessageService messages = messagesRef.get();
if (messages != null) {
messages.abandon(target, reason);
}
}
/**
* Poll herdr's {@code ping} until it answers or {@link #HERDR_WAIT_SECONDS} elapses (CB-504).
*
* @return true if herdr answered, false if it never did
*/
private static boolean awaitHerdr(HerdrClient herdr) {
long deadline = System.nanoTime() + HERDR_WAIT_SECONDS * 1_000_000_000L;
boolean waited = false;
while (true) {
try {
herdr.call("ping");
if (waited) {
log.info("herdr is up");
}
return true;
} catch (HerdrException e) {
if (System.nanoTime() >= deadline) {
return false;
}
if (!waited) {
log.info("waiting up to {}s for the herdr socket…", HERDR_WAIT_SECONDS);
waited = true;
}
try {
Thread.sleep(HERDR_WAIT_POLL_MILLIS);
} catch (InterruptedException ie) {
Thread.currentThread().interrupt();
return false;
}
}
}
}
private Bridged() {
}
}
@@ -1,4 +1,4 @@
package dev.ltms.fleet.auth;
package dev.ltms.bridged.auth;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@@ -1,9 +1,9 @@
package dev.ltms.fleet.auth;
package dev.ltms.bridged.auth;
/**
* The authorization table (CB-505), stated once and enforced on both entry paths.
*
* <p>Most of these rules are already true de facto — {@code FleetMcp} derives a worker's identity
* <p>Most of these rules are already true de facto — {@code BridgeMcp} derives a worker's identity
* from the connection rather than reading it from an argument, so a worker has never been able to
* reply <em>as</em> another worker over MCP. What was missing is that the REST surface trusted the
* session id in the URL path, and neither surface checked role at all. This class makes the
@@ -1,7 +1,7 @@
package dev.ltms.fleet.auth;
package dev.ltms.bridged.auth;
import dev.ltms.fleet.mcp.ConnectionIdentity;
import dev.ltms.fleet.peer.MemberRole;
import dev.ltms.bridged.mcp.ConnectionIdentity;
import dev.ltms.bridged.peer.MemberRole;
import java.nio.charset.StandardCharsets;
import java.security.MessageDigest;
@@ -12,7 +12,7 @@ import java.util.function.Supplier;
/**
* Resolves every caller to a {@link Principal}, for both entry paths into the core (CB-501).
*
* <p>There are two of them and they are not layered the way the docs suggest: {@code FleetMcp}
* <p>There are two of them and they are not layered the way the docs suggest: {@code BridgeMcp}
* calls the service layer directly and is mounted as a raw servlet (so it never passes through a
* Javalin filter), while the REST routes historically resolved no identity at all. Both now
* delegate here, so the authorization rules are stated once instead of drifting apart.
@@ -59,7 +59,7 @@ public final class CallerResolver {
* <p>Like {@link #leadTerminals}, a supplier rather than a fixed map, so a binding injected
* after startup — when the later spawn lifecycle establishes a live architect session, or an
* operator pins one — takes effect without a restart. Consulted per resolve; today's wiring
* in {@code Fleetd} reads a constant from config, which is the degenerate live case.
* in {@code Bridged} reads a constant from config, which is the degenerate live case.
*/
private final Supplier<Map<String, String>> architectTerminals;
private final Function<String, MemberRole> memberSlotRoles;
@@ -235,7 +235,7 @@ public final class CallerResolver {
// loopback-trust: same-host callers that are not workers are the primary. A non-loopback
// caller is anonymous even here — and startup refuses that combination anyway
// (FleetConfig.validateAuthExposure), so this is defence in depth, not the control.
// (BridgedConfig.validateAuthExposure), so this is defence in depth, not the control.
return isLoopback(remoteAddr) ? Principal.primary(c.pid()) : Principal.anonymous();
}
@@ -1,6 +1,6 @@
package dev.ltms.fleet.auth;
package dev.ltms.bridged.auth;
import dev.ltms.fleet.peer.MemberRole;
import dev.ltms.bridged.peer.MemberRole;
/** Optional session lifecycle hook for live member-slot bindings. */
public interface MemberLifecycle {
@@ -1,7 +1,7 @@
package dev.ltms.fleet.auth;
package dev.ltms.bridged.auth;
import dev.ltms.fleet.config.FleetConfig;
import dev.ltms.fleet.peer.MemberRole;
import dev.ltms.bridged.config.BridgedConfig;
import dev.ltms.bridged.peer.MemberRole;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@@ -59,7 +59,7 @@ public final class MemberRegistry implements MemberLifecycle {
private final Map<String, String> terminalToSlot = new HashMap<>();
/** Flatten every role pool in {@code fleet} into one registry. Leaders are not members. */
public MemberRegistry(FleetConfig.Fleet fleet) {
public MemberRegistry(BridgedConfig.Fleet fleet) {
Map<String, Entry> flat = new LinkedHashMap<>();
if (fleet != null) {
for (MemberRole role : MemberRole.values()) {
@@ -94,7 +94,7 @@ public final class MemberRegistry implements MemberLifecycle {
* An immutable copy of the live {@code terminal_id → slot name} bindings.
*
* <p>Passed to {@link CallerResolver} as the source of architect identity, and what
* {@code fleet_whoami}/the roster will read to say which slot a pane hosts. Empty until the
* {@code bridge_whoami}/the roster will read to say which slot a pane hosts. Empty until the
* spawn lifecycle binds a slot.
*/
public Map<String, String> snapshot() {
@@ -1,4 +1,4 @@
package dev.ltms.fleet.auth;
package dev.ltms.bridged.auth;
/**
* A resolved caller: its {@link Role}, and — for a worker — the herdr {@code terminal_id} that
@@ -39,14 +39,14 @@ public record Principal(Role role, String terminal, long pid, String name) {
*
* <p>Carries {@link Role#PRIMARY}: a lead <em>is</em> a primary as far as authorization goes,
* so every existing {@code isPrimary()} gate keeps working unchanged and the role table needed
* no new entry. The name is reporting only — it lets {@code fleet_whoami} say <em>which</em>
* no new entry. The name is reporting only — it lets {@code bridge_whoami} say <em>which</em>
* lead is asking once more than one is configured.
*
* <p><strong>CB-532: a lead now carries the terminal it was matched by.</strong> Under CB-530 it
* deliberately did not, because {@code terminal} meant "which worker pane" everywhere and a
* non-null one would have enrolled the lead in the worker presence map. That reading was what
* made a lead unaddressable: {@link #ownsSession} could never be true for it, so
* {@code fleet_reply} was refused and one lead could send to another but never be answered.
* {@code bridge_reply} was refused and one lead could send to another but never be answered.
* The terminal now means "which pane is this caller", the presence map keys on
* {@link #isSpawnedMember()} instead, and a lead is a peer that can both send and receive.
*/
@@ -63,7 +63,7 @@ public record Principal(Role role, String terminal, long pid, String name) {
* An architect (CB-548), identified by the slot it occupies and the pane bound to it.
*
* <p>Carries {@link Role#ARCHITECT}. {@code slotName} is reporting only — it lets
* {@code fleet_whoami} say <em>which</em> architect slot is asking, and it is the key the
* {@code bridge_whoami} say <em>which</em> architect slot is asking, and it is the key the
* (future) spawn lifecycle reads a profile back from. Identity is the {@code terminal}: like a
* worker's it comes from the connection and the live terminal→slot binding, so
* {@code ownsSession} works exactly as it does for a worker — an architect acts as its own
@@ -1,4 +1,4 @@
package dev.ltms.fleet.auth;
package dev.ltms.bridged.auth;
/**
* What a caller is allowed to be on the bus (CB-501).
@@ -1,4 +1,4 @@
package dev.ltms.fleet.config;
package dev.ltms.bridged.config;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@@ -16,7 +16,7 @@ import java.util.function.Supplier;
/**
* The daemon's live configuration, re-readable without a restart (CB-559).
*
* <p>Consumers hold this, not a {@link FleetConfig}, and read through {@link #get()} at the point
* <p>Consumers hold this, not a {@link BridgedConfig}, and read through {@link #get()} at the point
* of use. A component that captures {@code ref.get()} into a field at construction has opted out of
* reload — which is sometimes right (see <em>deferred</em> below), but it must then be a deliberate
* choice rather than an accident of where the field was initialised.
@@ -30,22 +30,13 @@ import java.util.function.Supplier;
* {@code fleet:} (every role pool, {@code charters}, and {@code tabLabel}),
* {@code placement:}, and an existing profile's {@code weight} / {@code maxLoad}. Those
* three are read through a supplier on {@code CompositePeerLauncher}, which is what makes
* them hot — not the fact that they are config. <strong>This does NOT include
* {@code fleet.leaders}</strong>: {@code Fleetd.main} reads {@code cfg.fleet().leaders()}
* once at startup to build the {@code LeadTabScanner} and the {@code LeadLauncher}, and
* neither is reconstructed on reload — so a lead added, removed, or re-{@code tab}'d under
* {@code fleet.leaders} needs a restart, the same as any deferred key below.</li>
* them hot — not the fact that they are config.</li>
* <li><strong>Deferred</strong> — accepted into the new snapshot, but the wiring built at startup
* keeps the old value until a restart: {@code lifecycle:}, {@code leadHeartbeat:},
* {@code spawnReadyTimeoutMs} / {@code spawnReadyPollMs}, {@code quarantineCooldownSeconds}
* (CB-578 stage B — baked once into the {@code BackendQuarantine} built at startup),
* {@code guard:}, {@code worktreeRoot:}, adding or removing a profile (a new backend needs its own launcher,
* {@code spawnReadyTimeoutMs} / {@code spawnReadyPollMs}, {@code guard:},
* {@code worktreeRoot:}, adding or removing a profile (a new backend needs its own launcher,
* which is constructed once), <em>and an existing profile's launch settings</em> —
* {@code model}, {@code baseUrl}, {@code argv}, {@code env}, {@code mcpUrl},
* {@code exhaustedPattern} (CB-578 stage A — compiled once into {@code Fleetd.main}'s
* pattern map at startup), and the rest. {@code credentialId} (CB-578 stage B) is NOT on
* this list — it is read live off the config supplier at every quarantine check and
* exhaustion event, exactly like {@code weight} / {@code maxLoad}, so it is hot instead.
* {@code model}, {@code baseUrl}, {@code argv}, {@code env}, {@code mcpUrl} and the rest.
* {@code HerdrPeerLauncher} takes {@code Map.copyOf(profiles)} at construction and resolves
* each spawn out of that copy, so those never reach a launch until the daemon restarts. A
* reload logs these rather than pretending they applied.</li>
@@ -65,30 +56,30 @@ import java.util.function.Supplier;
* running. A config file being edited is normally read once mid-save; degrading a working daemon
* because it caught a half-written file would be a bad trade.
*/
public final class ConfigRef implements Supplier<FleetConfig> {
public final class ConfigRef implements Supplier<BridgedConfig> {
private static final Logger log = LoggerFactory.getLogger(ConfigRef.class);
/** Keys that cannot change under a running daemon — see the class doc. */
private static final Set<String> COLD_KEYS =
Set.of("bind", "herdrSocket", "memberHerdrSocket", "broker", "auth");
Set.of("bind", "herdrSocket", "broker", "auth");
private final Path path;
private final AtomicReference<FleetConfig> current;
private final AtomicReference<BridgedConfig> current;
public ConfigRef(Path path, FleetConfig initial) {
public ConfigRef(Path path, BridgedConfig initial) {
this.path = path;
this.current = new AtomicReference<>(Objects.requireNonNull(initial, "initial config"));
}
/** A fixed reference that never reloads — for tests and for wiring built from a config in code. */
public static ConfigRef fixed(FleetConfig cfg) {
public static ConfigRef fixed(BridgedConfig cfg) {
return new ConfigRef(null, cfg);
}
/** The live configuration. Read this per use; do not cache it in a field. */
@Override
public FleetConfig get() {
public BridgedConfig get() {
return current.get();
}
@@ -128,7 +119,7 @@ public final class ConfigRef implements Supplier<FleetConfig> {
}
if (!applied) {
return "config reload refused — these keys cannot change under a running daemon: "
+ String.join(", ", coldKeys) + ". Restart fleetd to apply them.";
+ String.join(", ", coldKeys) + ". Restart bridged to apply them.";
}
if (!deferred.isEmpty()) {
return "config reloaded; these changes need a restart to take effect: "
@@ -149,10 +140,10 @@ public final class ConfigRef implements Supplier<FleetConfig> {
if (path == null) {
return Outcome.failed("this config was built in code and has no file to reload from");
}
FleetConfig old = current.get();
FleetConfig fresh;
BridgedConfig old = current.get();
BridgedConfig fresh;
try {
fresh = FleetConfig.load(path);
fresh = BridgedConfig.load(path);
// The same gate startup runs. A config that would have refused to boot must not be able
// to slip in through a reload — that is how a daemon ends up in a state it could never
// have started in, which is the hardest kind to debug.
@@ -182,7 +173,7 @@ public final class ConfigRef implements Supplier<FleetConfig> {
}
/** Cold keys whose value differs between the running config and the candidate. */
private static List<String> changedColdKeys(FleetConfig old, FleetConfig fresh) {
private static List<String> changedColdKeys(BridgedConfig old, BridgedConfig fresh) {
List<String> changed = new ArrayList<>();
if (!Objects.equals(old.bind(), fresh.bind())) {
changed.add("bind");
@@ -190,9 +181,6 @@ public final class ConfigRef implements Supplier<FleetConfig> {
if (!Objects.equals(old.herdrSocket(), fresh.herdrSocket())) {
changed.add("herdrSocket");
}
if (!Objects.equals(old.memberHerdrSocket(), fresh.memberHerdrSocket())) {
changed.add("memberHerdrSocket");
}
if (!Objects.equals(old.broker(), fresh.broker())) {
changed.add("broker");
}
@@ -205,7 +193,7 @@ public final class ConfigRef implements Supplier<FleetConfig> {
}
/** Changed keys that were accepted but whose effect waits for a restart. */
private static List<String> changedDeferredKeys(FleetConfig old, FleetConfig fresh) {
private static List<String> changedDeferredKeys(BridgedConfig old, BridgedConfig fresh) {
List<String> changed = new ArrayList<>();
if (!Objects.equals(old.lifecycle(), fresh.lifecycle())) {
changed.add("lifecycle");
@@ -223,15 +211,9 @@ public final class ConfigRef implements Supplier<FleetConfig> {
|| !Objects.equals(old.spawnReadyPollMs(), fresh.spawnReadyPollMs())) {
changed.add("spawnReady*");
}
// CB-578 stage B: baked once into the BackendQuarantine built at startup — a running
// quarantine keeps its original cooldown regardless, and a new cooldown only applies to a
// quarantine that starts after a restart.
if (!Objects.equals(old.quarantineCooldownSeconds(), fresh.quarantineCooldownSeconds())) {
changed.add("quarantineCooldownSeconds");
}
Map<String, FleetConfig.Profile> before =
Map<String, BridgedConfig.Profile> before =
old.profiles() == null ? Map.of() : old.profiles();
Map<String, FleetConfig.Profile> after =
Map<String, BridgedConfig.Profile> after =
fresh.profiles() == null ? Map.of() : fresh.profiles();
// Adding or removing a profile is deferred: a new backend needs its own launcher, and
// launchers are built once at startup.
@@ -250,7 +232,7 @@ public final class ConfigRef implements Supplier<FleetConfig> {
// a reload can produce, because the operator has no reason to doubt it.
List<String> relaunch = new ArrayList<>();
before.forEach((name, was) -> {
FleetConfig.Profile now = after.get(name);
BridgedConfig.Profile now = after.get(name);
if (now != null && !sameLaunchSettings(was, now)) {
relaunch.add(name);
}
@@ -264,12 +246,10 @@ public final class ConfigRef implements Supplier<FleetConfig> {
/**
* Whether two versions of a profile would launch a peer identically. Compares every component
* the launcher reads at spawn; {@code weight}, {@code maxLoad} and {@code credentialId} are
* excluded because those are read live (by the placement policy and, for credentialId, by
* {@code CompositePeerLauncher}/the CB-578 stage B exhaustion sink) and really do take effect on
* the next spawn.
* the launcher reads at spawn; {@code weight} and {@code maxLoad} are excluded because those are
* read live by the placement policy and really do take effect on the next spawn.
*/
private static boolean sameLaunchSettings(FleetConfig.Profile a, FleetConfig.Profile b) {
private static boolean sameLaunchSettings(BridgedConfig.Profile a, BridgedConfig.Profile b) {
return Objects.equals(a.baseUrl(), b.baseUrl())
&& Objects.equals(a.model(), b.model())
&& Objects.equals(a.configDir(), b.configDir())
@@ -279,19 +259,12 @@ public final class ConfigRef implements Supplier<FleetConfig> {
&& Objects.equals(a.workspace(), b.workspace())
&& Objects.equals(a.tabLabel(), b.tabLabel())
&& Objects.equals(a.mcpUrl(), b.mcpUrl())
// CB-634: the IDE MCP mount is a launch flag, fixed at spawn like mcpUrl — a
// reload changes it only for members spawned after, so a changed value is deferred.
&& Objects.equals(a.ideMcpUrl(), b.ideMcpUrl())
&& Objects.equals(a.cwd(), b.cwd())
&& Objects.equals(a.parityOverlay(), b.parityOverlay())
&& Objects.equals(a.gitTokenEnv(), b.gitTokenEnv())
&& Objects.equals(a.gitHostEnv(), b.gitHostEnv())
&& Objects.equals(a.kind(), b.kind())
&& Objects.equals(a.env(), b.env())
&& Objects.equals(a.subscription(), b.subscription())
// CB-578 stage B: exhaustedPattern is compiled once into Fleetd.main's pattern map
// at startup (see ExhaustedPatternLookup wiring) — a reload never re-reads it, so a
// changed pattern must be reported as deferred, exactly like model/baseUrl/argv.
&& Objects.equals(a.exhaustedPattern(), b.exhaustedPattern());
&& Objects.equals(a.subscription(), b.subscription());
}
}
@@ -1,4 +1,4 @@
package dev.ltms.fleet.config;
package dev.ltms.bridged.config;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@@ -11,7 +11,7 @@ import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
/**
* Polls {@code fleetd.yaml}'s modified time and asks {@link ConfigRef} to reload when it moves
* Polls {@code bridged.yaml}'s modified time and asks {@link ConfigRef} to reload when it moves
* (CB-559). Opt-in through {@code configReload.enabled}.
*
* <p><strong>Why polling and not a filesystem watch.</strong> {@code WatchService} on macOS has no
@@ -1,4 +1,4 @@
package dev.ltms.fleet.guard;
package dev.ltms.bridged.guard;
/** Thrown when the subscription boundary would be violated. Never swallow this. */
public class GuardException extends RuntimeException {
@@ -1,4 +1,4 @@
package dev.ltms.fleet.guard;
package dev.ltms.bridged.guard;
import java.net.URI;
import java.net.URISyntaxException;
@@ -16,7 +16,7 @@ import java.util.Set;
* means its traffic would leave the subscription. That is a hard stop.</li>
* </ul>
*
* Both checks throw {@link GuardException} on violation. {@code fleetd} calls
* Both checks throw {@link GuardException} on violation. {@code bridged} calls
* {@link #assertWorker} before spawning a worker and {@link #assertPrimaryClean}
* against its own environment at startup.
*/
@@ -1,7 +1,7 @@
package dev.ltms.fleet.health;
package dev.ltms.bridged.health;
import dev.ltms.fleet.herdr.AgentStatus;
import dev.ltms.fleet.session.MemberSession;
import dev.ltms.bridged.herdr.AgentStatus;
import dev.ltms.bridged.session.MemberSession;
/**
* Pure classifier. Collection and repair are deliberately outside this package.
@@ -0,0 +1,119 @@
package dev.ltms.bridged.health;
import dev.ltms.bridged.herdr.Agent;
import dev.ltms.bridged.herdr.AgentControl;
import dev.ltms.bridged.herdr.AgentStatus;
import dev.ltms.bridged.msg.MessageService;
import dev.ltms.bridged.session.MemberSession;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
import java.util.function.LongSupplier;
import java.util.function.Supplier;
import java.util.function.BiConsumer;
/** Slow whole-fleet evidence collection. It is deliberately separate from the delivery poller. */
public final class FleetHealthMonitor {
private static final Logger log = LoggerFactory.getLogger(FleetHealthMonitor.class);
private final AgentControl agents;
private final Supplier<List<MemberSession>> roster;
private final MessageService messages;
private final ScheduledExecutorService scheduler;
private final LongSupplier clock;
private final long intervalSeconds;
private final BiConsumer<String, String> failTarget;
private final Map<String, HealthPrior> priors = new HashMap<>();
private final Map<String, HealthState> states = new HashMap<>();
// These facts need the evidence publishers introduced by later M4 units. They are not negatives.
private static final boolean NOT_YET_OBSERVED = false;
public FleetHealthMonitor(AgentControl agents, Supplier<List<MemberSession>> roster, MessageService messages,
ScheduledExecutorService scheduler, LongSupplier clock, long intervalSeconds) {
this(agents, roster, messages, scheduler, clock, intervalSeconds, (_, _) -> { });
}
public FleetHealthMonitor(AgentControl agents, Supplier<List<MemberSession>> roster, MessageService messages,
ScheduledExecutorService scheduler, LongSupplier clock, long intervalSeconds,
BiConsumer<String, String> failTarget) {
this.agents = agents;
this.roster = roster;
this.messages = messages;
this.scheduler = scheduler;
this.clock = clock;
this.intervalSeconds = intervalSeconds;
this.failTarget = failTarget;
}
/** Pure per-member decision seam. */
static HealthDecision decide(HealthSnapshot snapshot, HealthPrior prior, long nowNanos) {
return FleetHealth.decide(snapshot, prior, nowNanos);
}
public void start() { scheduler.schedule(this::tick, intervalSeconds, TimeUnit.SECONDS); }
public void stop() { scheduler.shutdownNow(); }
// Package-private so tests can run one tick without waiting.
void tick() {
try {
List<Agent> agentsNow = agents.list(); // Exactly one list call for this complete observation.
List<MemberSession> rosterNow = roster.get(); // One in-memory roster snapshot for this tick.
Map<String, Agent> live = new HashMap<>();
for (Agent agent : agentsNow) live.put(agent.terminalId(), agent);
HashSet<String> current = new HashSet<>();
for (MemberSession session : rosterNow) {
current.add(session.terminalId());
Agent agent = live.get(session.terminalId());
AgentStatus status = agent == null ? AgentStatus.UNKNOWN : agent.status();
boolean accepted = messages.hasAcceptedDelivery(session.terminalId());
HealthSnapshot snapshot = new HealthSnapshot(session.state(), status, accepted, NOT_YET_OBSERVED,
messages.hasInboxMessage(session.terminalId()), agent != null, NOT_YET_OBSERVED,
NOT_YET_OBSERVED, NOT_YET_OBSERVED, NOT_YET_OBSERVED, NOT_YET_OBSERVED, NOT_YET_OBSERVED);
HealthDecision decision = decide(snapshot, priors.getOrDefault(session.terminalId(), HealthPrior.NONE),
clock.getAsLong());
priors.put(session.terminalId(), decision.prior());
if (decision.state() == HealthState.GONE || decision.state() == HealthState.NEVER_READY) {
failTarget.accept(session.terminalId(), "fleet health detected " + decision.state());
}
reportTransition(session.terminalId(), decision.state());
}
priors.keySet().retainAll(current);
states.keySet().retainAll(current);
} catch (Throwable error) {
// A list failure is health evidence, and must never kill the monitor's only scheduler task.
log.warn("fleet health collection failed; will retry next tick", error);
} finally {
if (!scheduler.isShutdown()) {
scheduler.schedule(this::tick, intervalSeconds, TimeUnit.SECONDS);
}
}
}
void reportTransition(String target, HealthState next) {
HealthState previous = states.put(target, next);
if (previous == next) return;
if (fault(next)) {
log.warn("fleet health member={} state={} previous={}", target, next, previous);
} else if (previous != null && fault(previous)) {
log.info("fleet health member={} recovered state={} previous={}", target, next, previous);
}
}
private static boolean fault(HealthState state) {
return switch (state) {
case NEVER_READY, GONE, TURN_BOUNDARY_LOST, ERROR_ON_SCREEN, STALL_SUSPECTED,
MUTE, REPLY_STRANDED, DELEGATION_ORPHANED, CONTROL_LINK_DOWN -> true;
default -> false;
};
}
public static String coverage(boolean enabled, boolean notificationConfigured) {
return !enabled ? "off" : notificationConfigured ? "full" : "detection-only";
}
}
@@ -1,4 +1,4 @@
package dev.ltms.fleet.health;
package dev.ltms.bridged.health;
/** Classification plus the private fact that the next pure decision needs. */
public record HealthDecision(HealthState state, HealthPrior prior) { }
@@ -1,4 +1,4 @@
package dev.ltms.fleet.health;
package dev.ltms.bridged.health;
/** Private cross-tick observation. It is deliberately not a reported health value. */
public record HealthPrior(boolean busyButDone) {
@@ -1,7 +1,7 @@
package dev.ltms.fleet.health;
package dev.ltms.bridged.health;
import dev.ltms.fleet.herdr.AgentStatus;
import dev.ltms.fleet.session.MemberSession;
import dev.ltms.bridged.herdr.AgentStatus;
import dev.ltms.bridged.session.MemberSession;
/** Read-only facts from one fleet collection tick. */
public record HealthSnapshot(MemberSession.State sessionState, AgentStatus liveStatus,
@@ -1,4 +1,4 @@
package dev.ltms.fleet.health;
package dev.ltms.bridged.health;
/** Health classifications reported for a member. */
public enum HealthState {
@@ -1,12 +1,12 @@
package dev.ltms.fleet.health;
package dev.ltms.bridged.health;
import dev.ltms.fleet.msg.Rendezvous;
import dev.ltms.bridged.msg.Rendezvous;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
/**
* Counts turns that ended via the completion fallback instead of {@code fleet_reply}.
* Counts turns that ended via the completion fallback instead of {@code bridge_reply}.
* MUTE is an observation by target and profile, not a classifier state and never suppresses faults.
*/
public final class MuteCounter {
@@ -1,4 +1,4 @@
package dev.ltms.fleet.health;
package dev.ltms.bridged.health;
import java.util.ArrayList;
import java.util.HashMap;
@@ -1,4 +1,4 @@
package dev.ltms.fleet.herdr;
package dev.ltms.bridged.herdr;
import com.fasterxml.jackson.databind.JsonNode;
@@ -1,4 +1,4 @@
package dev.ltms.fleet.herdr;
package dev.ltms.bridged.herdr;
import com.fasterxml.jackson.databind.JsonNode;
@@ -38,11 +38,6 @@ public final class AgentControl {
this.herdr = herdr;
}
/** The herdr daemon this control object sends its agent calls to. */
public HerdrClient herdr() {
return herdr;
}
/** One agent-targeted call, translating a terminal id to its pane id (retrying once fresh). */
private JsonNode agentCall(String method, String target, Map<String, Object> extra) {
String resolved = resolveTarget(target);
@@ -1,4 +1,4 @@
package dev.ltms.fleet.herdr;
package dev.ltms.bridged.herdr;
/**
* A herdr agent's lifecycle state, as reported by {@code agent_status}. Drives the
@@ -32,7 +32,7 @@ public enum AgentStatus {
};
}
/** Whether {@code fleetd} may inject a message now without stepping on a live turn. */
/** Whether {@code bridged} may inject a message now without stepping on a live turn. */
public boolean injectable() {
return this == IDLE || this == BLOCKED || this == DONE;
}
@@ -1,17 +1,17 @@
package dev.ltms.fleet.herdr;
package dev.ltms.bridged.herdr;
import com.fasterxml.jackson.databind.JsonNode;
/**
* Client face onto the herdr daemon (protocol 14, herdr 0.7.0).
*
* <p>This is the ONLY thing in {@code fleetd} that speaks to herdr. Every method
* <p>This is the ONLY thing in {@code bridged} that speaks to herdr. Every method
* maps to a herdr JSON-RPC call over its Unix domain socket. Requests are
* newline-delimited JSON with a <em>string</em> id; responses carry either a
* {@code result} object (whose {@code type} field discriminates the payload) or an
* {@code error} object.
*
* <p>Higher layers ({@code fleetd}'s policy brain, REST endpoints, MCP adapters)
* <p>Higher layers ({@code bridged}'s policy brain, REST endpoints, MCP adapters)
* depend on this interface, not on the socket. Tests substitute a fake; the
* {@code contract}-tagged suite exercises the real implementation against a running
* herdr to catch protocol drift.
@@ -1,4 +1,4 @@
package dev.ltms.fleet.herdr;
package dev.ltms.bridged.herdr;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JsonNode;
@@ -1,4 +1,4 @@
package dev.ltms.fleet.herdr;
package dev.ltms.bridged.herdr;
/**
* Raised when a herdr call fails: transport error, or an {@code error} envelope
@@ -1,4 +1,4 @@
package dev.ltms.fleet.herdr;
package dev.ltms.bridged.herdr;
import com.fasterxml.jackson.databind.JsonNode;
import org.slf4j.Logger;
@@ -6,7 +6,6 @@ import org.slf4j.LoggerFactory;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.Locale;
import java.util.Map;
import java.util.Set;
import java.util.function.LongSupplier;
@@ -14,7 +13,7 @@ import java.util.function.Supplier;
/**
* Discovers which panes host a lead by scanning herdr for tabs the operator labelled by convention
* (CB-531), and hands {@link dev.ltms.fleet.auth.CallerResolver} the resulting
* (CB-531), and hands {@link dev.ltms.bridged.auth.CallerResolver} the resulting
* {@code terminal_id → lead name} map.
*
* <p><strong>Why scan at all.</strong> A lead is never spawned — a human opens a tab and starts an
@@ -24,33 +23,24 @@ import java.util.function.Supplier;
* by first starting the session and asking it. Scanning closes that loop: label the tab, and the
* pane is recognised on the next resolve.
*
* <p><strong>CB-579 — matched by name, not prefix.</strong> This used to strip one shared
* {@code tabPrefix} off a label to derive the lead's name, and merged a config-supplied
* {@code terminal_id} pin over every scan result so the pin could never expire. Both are gone: each
* lead now configures its own exact {@code tab} label ({@code fleet.leaders.<name>.tab}), so this
* class is handed a {@code tab → name} map up front and matches labels against it exactly
* (case-insensitively). There is no merge step — a scan result is the whole answer. That is the
* fix for the bug this replaces: a {@code terminal_id} pin surviving in config after the pane it
* named was gone, so the daemon kept treating a dead session as a live lead forever.
*
* <p><strong>Direction of trust.</strong> The label names the lead; it never <em>grants</em>
* anything a pane could take for itself. Three properties keep that honest:
* <ol>
* <li>Worker spaces are excluded wholesale ({@code excludedWorkspaceLabels}), so a worker cannot
* become a lead by being placed — as a split, say — inside a matching tab.</li>
* <li>A worker cannot rename a tab: {@code tab.rename} is reachable only through
* {@link WorkspaceControl}, which no {@code fleet_*} tool exposes. The label is writable by
* {@link WorkspaceControl}, which no {@code bridge_*} tool exposes. The label is writable by
* the human at the terminal and by nobody the bridge is defending against.</li>
* <li>The label is a <em>name</em>, not a capability. What a pane may do is decided by
* {@code Authz} against the role {@code CallerResolver} returns; a tab that calls itself a
* lead still cannot act as one unless the daemon's own registry agrees.</li>
* </ol>
*
* <p><strong>CB-558 — fleetd now writes lead labels too.</strong> This class used to be able to say
* that fleetd never renames a lead tab, so the label was always the human's own writing and there
* <p><strong>CB-558 — bridged now writes lead labels too.</strong> This class used to be able to say
* that bridged never renames a lead tab, so the label was always the human's own writing and there
* was no round-trip from the daemon's rename back into its next decision.
* {@code dev.ltms.fleet.lead.LeadLauncher} ends that: an auto-launched lead is labelled by the
* daemon and found again by this scan. The trust direction above is unaffected — fleetd writing a
* {@code dev.ltms.bridged.lead.LeadLauncher} ends that: an auto-launched lead is labelled by the
* daemon and found again by this scan. The trust direction above is unaffected — bridged writing a
* name for a lead it just started is not a pane promoting itself — but <em>staleness</em> becomes
* real: a label left behind by a session that has since died would read as a live lead forever.
* This scanner does not solve that (its job is naming, and a stale name costs nothing here); the
@@ -58,7 +48,7 @@ import java.util.function.Supplier;
* ever make a decision that <em>removes</em> something based on this map, add the same check.
* The remaining hazard is an <em>operator</em> one — a worker {@code tabLabel} template that
* happens to start with the same prefix would promote the whole fleet — and that is refused at
* startup by {@code FleetConfig.validateLeadTabPrefixes} rather than documented here.
* startup by {@code BridgedConfig.validateLeadScan} rather than documented here.
*
* <p><strong>Caching.</strong> {@link #get()} is on the request path (every resolve), so the scan
* is TTL-cached and a stale-but-valid map is preferred to a herdr round-trip. A failed scan keeps
@@ -70,46 +60,38 @@ public final class LeadTabScanner implements Supplier<Map<String, String>> {
private static final Logger log = LoggerFactory.getLogger(LeadTabScanner.class);
private final HerdrClient herdr;
private final Map<String, String> tabToName;
private final String tabPrefix;
private final Set<String> excludedWorkspaceLabels;
private final Map<String, String> configuredLeads;
private final long ttlNanos;
private final LongSupplier clock;
private Map<String, String> cached = Map.of();
private Map<String, String> cached;
private long scannedAtNanos;
private boolean everScanned;
/**
* @param herdr the herdr client to query ({@code workspace.list},
* {@code tab.list}, {@code pane.list} — all read-only)
* @param tabToName every configured lead's exact tab label → its name
* ({@code fleet.leaders.<name>.tab}), matched case-insensitively
* @param tabPrefix a tab whose label starts with this (case-insensitively) hosts a
* lead; the rest of the label, trimmed, is the lead's name
* @param excludedWorkspaceLabels workspaces never scanned — the configured worker spaces
* @param configuredLeads the static {@code leaders:}/{@code primary:} registry, merged
* over every scan result. Explicit config outranks the
* convention, and survives a scan that cannot run at all
* @param ttlNanos how long a scan result is reused before the next one
* @param clock nanosecond time source ({@code System::nanoTime} in production)
*/
public LeadTabScanner(HerdrClient herdr, Map<String, String> tabToName,
Set<String> excludedWorkspaceLabels, long ttlNanos, LongSupplier clock) {
public LeadTabScanner(HerdrClient herdr, String tabPrefix, Set<String> excludedWorkspaceLabels,
Map<String, String> configuredLeads, long ttlNanos, LongSupplier clock) {
this.herdr = herdr;
this.tabToName = normalize(tabToName);
this.tabPrefix = tabPrefix == null || tabPrefix.isBlank() ? "lead:" : tabPrefix.strip();
this.excludedWorkspaceLabels = excludedWorkspaceLabels == null
? Set.of() : Set.copyOf(excludedWorkspaceLabels);
this.configuredLeads = configuredLeads == null ? Map.of() : Map.copyOf(configuredLeads);
this.ttlNanos = ttlNanos;
this.clock = clock;
}
/** Keys stripped and lower-cased once, so every lookup is a plain map hit. */
private static Map<String, String> normalize(Map<String, String> tabToName) {
if (tabToName == null || tabToName.isEmpty()) {
return Map.of();
}
Map<String, String> out = new LinkedHashMap<>();
tabToName.forEach((tab, name) -> {
if (tab != null && !tab.isBlank() && name != null && !name.isBlank()) {
out.put(tab.strip().toLowerCase(Locale.ROOT), name);
}
});
return Collections.unmodifiableMap(out);
this.cached = this.configuredLeads;
}
/**
@@ -169,20 +151,25 @@ public final class LeadTabScanner implements Supplier<Map<String, String>> {
}
}
}
byTerminal.putAll(configuredLeads); // an explicit pin outranks a label
return Collections.unmodifiableMap(byTerminal);
}
/**
* The lead name a tab label declares, or {@code null} if it names none of the configured leads.
* The lead name a tab label declares, or {@code null} if it declares none.
*
* <p>Exact match (case-insensitive, ends stripped) against {@link #tabToName} — no prefix
* stripping, so an operator's {@code "lead: something-else"} tab is never mistaken for a
* configured lead just because it shares a prefix.
* <p>{@code "lead: opus-5.0"} → {@code "opus-5.0"}. A bare {@code "lead:"} names nobody and is
* rejected: an unnamed lead would resolve as {@code PRIMARY} with nothing to attribute it to.
*/
private String leadNameOf(String label) {
if (label == null) {
return null;
}
return tabToName.get(label.strip().toLowerCase(Locale.ROOT));
String l = label.strip();
if (!l.regionMatches(true, 0, tabPrefix, 0, tabPrefix.length())) {
return null;
}
String name = l.substring(tabPrefix.length()).strip();
return name.isEmpty() ? null : name;
}
}
@@ -0,0 +1,59 @@
package dev.ltms.bridged.herdr;
import com.fasterxml.jackson.databind.JsonNode;
import java.util.Map;
/**
* Resolves which herdr pane a process belongs to — the herdr half of connection-based MCP
* identity (CB-105). Given the PID that opened an MCP connection, {@link #terminalForPid} finds
* the agent pane whose process tree contains it, so {@code bridged} can tell <em>which worker</em>
* is calling without the worker sending anything spoofable.
*
* <p>herdr owns the PID→pane truth: {@code pane.process_info} reports each pane's {@code shell_pid}
* and foreground process PIDs. This scans agent panes; a spawn-time {@code pid→terminal} cache is
* the obvious optimization once wired into {@code ClaudeCodeLauncher}.
*/
public final class PaneLocator {
private final HerdrClient herdr;
public PaneLocator(HerdrClient herdr) {
this.herdr = herdr;
}
/**
* The {@code terminal_id} of the agent pane whose process tree contains {@code pid}, or
* {@code null} if no agent pane owns it (e.g. the caller is the primary, or off-host).
*/
public String terminalForPid(long pid) {
if (pid <= 0) {
return null;
}
for (JsonNode pane : herdr.call("pane.list", Map.of()).path("panes")) {
String paneId = pane.path("pane_id").asText(null);
if (paneId != null && paneOwnsPid(paneId, pid)) {
return pane.path("terminal_id").asText(null);
}
}
return null;
}
private boolean paneOwnsPid(String paneId, long pid) {
JsonNode info;
try {
info = herdr.call("pane.process_info", Map.of("pane_id", paneId)).path("process_info");
} catch (HerdrException e) {
return false; // pane vanished mid-scan — just skip it
}
if (info.path("shell_pid").asLong(-1) == pid) {
return true;
}
for (JsonNode p : info.path("foreground_processes")) {
if (p.path("pid").asLong(-1) == pid) {
return true;
}
}
return false;
}
}
@@ -1,4 +1,4 @@
package dev.ltms.fleet.herdr;
package dev.ltms.bridged.herdr;
import com.fasterxml.jackson.databind.JsonNode;
@@ -1,4 +1,4 @@
package dev.ltms.fleet.herdr;
package dev.ltms.bridged.herdr;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
@@ -1,4 +1,4 @@
package dev.ltms.fleet.herdr;
package dev.ltms.bridged.herdr;
import com.fasterxml.jackson.databind.JsonNode;
@@ -7,7 +7,7 @@ import com.fasterxml.jackson.databind.JsonNode;
* dedicated worker space so they never split or clutter the user's real work spaces.
*
* @param workspaceId herdr's stable id (e.g. {@code "w4"})
* @param label display label shown in herdr's UI (e.g. {@code "fleetd-workers"})
* @param label display label shown in herdr's UI (e.g. {@code "bridged-workers"})
* @param activeTabId the workspace's currently-focused tab, or {@code null}
*/
public record Workspace(String workspaceId, String label, String activeTabId) {
@@ -1,4 +1,4 @@
package dev.ltms.fleet.herdr;
package dev.ltms.bridged.herdr;
import com.fasterxml.jackson.databind.JsonNode;
import org.slf4j.Logger;
@@ -1,31 +1,23 @@
package dev.ltms.fleet.inject;
package dev.ltms.bridged.inject;
import dev.ltms.fleet.herdr.AgentControl;
import dev.ltms.fleet.msg.Rendezvous;
import dev.ltms.fleet.msg.TurnToken;
import dev.ltms.bridged.herdr.AgentControl;
import dev.ltms.bridged.msg.Rendezvous;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.time.Duration;
import java.util.List;
import java.util.Objects;
import java.util.Set;
import java.util.TreeSet;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ConcurrentHashMap;
import java.util.function.LongSupplier;
import java.util.regex.Pattern;
/**
* The CB-106 completion fallback: bridges the {@link Injector}'s turn-completion signal to the
* {@link Rendezvous} so a blocking {@code fleet_send} resolves even when the worker finishes its
* task without ever calling {@code fleet_reply} — the common case for a real delegated coding task.
* {@link Rendezvous} so a blocking {@code bridge_send} resolves even when the worker finishes its
* task without ever calling {@code bridge_reply} — the common case for a real delegated coding task.
*
* <p>On a confirmed {@code working → idle} boundary it scrapes the worker's recent transcript and
* resolves the awaiting send with that tail (a {@link Rendezvous.Kind#COMPLETION} resolution, so the
* caller can tell a scrape from a structured reply). It scrapes only when a send is actually waiting
* — a fleet worker's own turns, or a send that already timed out, cost no herdr traffic. An explicit
* {@code fleet_reply} that raced in first wins; {@link Rendezvous#resolveCompletion} is then a no-op.
* {@code bridge_reply} that raced in first wins; {@link Rendezvous#resolveCompletion} is then a no-op.
*
* <p>It also handles the CB-109 stall signal ({@link #onTurnFailed}): a worker that ran a turn then
* wedged in an {@code unknown} state resolves the send as a failure (with the error screen as
@@ -40,7 +32,7 @@ import java.util.regex.Pattern;
* <p><strong>Waiter-specific resolution (CB-116).</strong> On delivery we also capture the exact
* {@link Rendezvous} waiter this turn belongs to, and the completion/failure fallbacks resolve
* <em>that</em> waiter — never "whatever send is waiting now". A completion fallback runs on a virtual
* thread and can land after the worker's {@code fleet_reply} already resolved the turn and the
* thread and can land after the worker's {@code bridge_reply} already resolved the turn and the
* <em>next</em> send opened its own waiter on the same session; resolving the current waiter would
* then deliver turn N's stale scrape as turn N+1's answer. Targeting the captured waiter makes a late
* completion a harmless no-op (its waiter is already done) instead of a cross-turn stale reply.
@@ -63,33 +55,11 @@ public final class CompletionResolver implements TurnListener {
/** Cap the scraped tail so a long transcript can't return an unbounded blob. */
static final int MAX_SCRAPE_CHARS = 4000;
/**
* fleetd#164: the floor below which a {@code BUSY -> DONE} transition cannot be real work. A
* backend that rejects a turn outright (e.g. an HTTP 400 from the model, before the worker read
* a single file or produced a token) drives the exact same confirmed {@code working -> idle}
* transition a genuine completion does — just in about a second instead of the many seconds a
* real turn costs. {@link #onTurnComplete} cannot tell those two cases apart from the transition
* alone, so a turn that settles inside this floor is treated as a crash signature and resolved
* as a failure, never as a (possibly empty) success.
*/
public static final long MIN_TURN_NANOS = Duration.ofSeconds(2).toNanos();
/**
* fleetd#164 (part 2): one stable, explicit backend-failure marker seen on a Claude Code pane
* when the backend itself rejected the turn (e.g. {@code "API Error: 400 invalid request body"}).
* Kept deliberately narrow — a growing list of ad-hoc error strings rots as backends change their
* wording; broader backend-error surfacing is out of scope here (fleetd#164 point 3).
*/
private static final Pattern BACKEND_ERROR = Pattern.compile("(?i)\\bAPI Error\\s*:");
private static final String CLIPPED_PANE_TAIL_MARKER =
"[Pane tail clipped: member did not call fleet_reply.]";
"[Pane tail clipped: member did not call bridge_reply.]";
private final AgentControl agents;
private final Rendezvous rendezvous;
private final ExhaustedPatternLookup exhaustedPatterns;
private final ExhaustionSink exhaustionSink;
private final LongSupplier nowNanos;
/**
* Per-target record of the turn currently in flight: the exact {@link Rendezvous} waiter its
@@ -101,70 +71,29 @@ public final class CompletionResolver implements TurnListener {
* reference: a completion scrape equal to it means the worker produced no new output (the previous
* turn's wind-down sampled as this boundary), so it is suppressed. Overwritten on each delivery;
* cleared when the turn resolves. Package-private so tests can capture and replay a specific turn.
*
* <p>{@code deliveredAtNanos} (fleetd#164) is the {@link #nowNanos} reading taken at delivery —
* the other half of the {@link #MIN_TURN_NANOS} floor check, compared against a fresh reading at
* resolution time.
*/
record InFlight(CompletableFuture<Rendezvous.Resolution> waiter, String baseline, long deliveredAtNanos) {
/**
* Convenience for tests exercising scrape/suppression logic that don't care about turn
* timing: back-dates the delivery far enough that {@link #MIN_TURN_NANOS} can never fire.
* Not used by production code — {@link #captureBaseline} always records a real reading.
*/
InFlight(CompletableFuture<Rendezvous.Resolution> waiter, String baseline) {
this(waiter, baseline, Long.MIN_VALUE / 2);
}
record InFlight(CompletableFuture<Rendezvous.Resolution> waiter, String baseline) {
}
private final ConcurrentHashMap<String, InFlight> inFlight = new ConcurrentHashMap<>();
/**
* @param exhaustedPatterns CB-578 stage A: per-target lookup for a profile's configured
* usage-limit refusal pattern. Required — there is deliberately no
* defaulting overload; a caller that does not want the classification
* must pass an explicit inert value ({@link ExhaustedPatternLookup#none()}).
* @param exhaustionSink CB-578 stage B: notified when a {@code BACKEND_EXHAUSTED}
* classification actually resolves a waiter. Required for the same
* reason as {@code exhaustedPatterns} — pass {@link ExhaustionSink#none()}
* to opt out.
*/
public CompletionResolver(AgentControl agents, Rendezvous rendezvous, ExhaustedPatternLookup exhaustedPatterns,
ExhaustionSink exhaustionSink) {
this(agents, rendezvous, exhaustedPatterns, exhaustionSink, System::nanoTime);
}
/**
* Test constructor with an injectable clock (fleetd#164), matching the {@code LongSupplier}
* pattern {@link dev.ltms.fleet.session.SessionManager} and {@link dev.ltms.fleet.msg.MessageService}
* already use: lets a test place a turn's delivery and its resolution at an exact, controllable
* distance apart around the {@link #MIN_TURN_NANOS} floor, without a real sleep. Public (rather
* than package-private like those two) because callers that wire a full {@code MessageService}
* fixture — e.g. {@code MessageServiceTest} — construct this resolver directly from another
* package.
*/
public CompletionResolver(AgentControl agents, Rendezvous rendezvous, ExhaustedPatternLookup exhaustedPatterns,
ExhaustionSink exhaustionSink, LongSupplier nowNanos) {
public CompletionResolver(AgentControl agents, Rendezvous rendezvous) {
this.agents = agents;
this.rendezvous = rendezvous;
this.exhaustedPatterns = Objects.requireNonNull(exhaustedPatterns, "exhaustedPatterns");
this.exhaustionSink = Objects.requireNonNull(exhaustionSink, "exhaustionSink");
this.nowNanos = Objects.requireNonNull(nowNanos, "nowNanos");
}
@Override
public void onDelivered(String target, TurnToken token) {
public void onDelivered(String target) {
// Capture the exact waiter this turn belongs to (CB-116) and snapshot the pane's pre-turn
// content — what it shows *before* the just-delivered turn produces output — as the staleness
// reference (CB-115). Done synchronously (like the delivering send itself) so both are in
// place before this turn's completion can fire.
captureBaseline(target, token);
captureBaseline(target);
}
/** Capture the in-flight turn: its waiter and pre-turn baseline (the testable core of {@link #onDelivered}). */
void captureBaseline(String target, TurnToken token) {
CompletableFuture<Rendezvous.Resolution> waiter = token.waiter();
void captureBaseline(String target) {
CompletableFuture<Rendezvous.Resolution> waiter = rendezvous.currentWaiter(target);
if (waiter == null) {
inFlight.remove(target); // no send is waiting on this delivery — nothing to resolve later
return;
@@ -180,7 +109,7 @@ public final class CompletionResolver implements TurnListener {
baseline = null; // fail open: no baseline ⇒ no suppression
log.debug("delivery baseline for {} failed: {}", target, e.getMessage());
}
inFlight.put(target, new InFlight(waiter, baseline, nowNanos.getAsLong()));
inFlight.put(target, new InFlight(waiter, baseline));
}
/** The turn currently baselined for {@code target}, or {@code null} — a test hook for the captureBaseline path. */
@@ -221,91 +150,45 @@ public final class CompletionResolver implements TurnListener {
void resolve(String target, InFlight turn) {
CompletableFuture<Rendezvous.Resolution> waiter = turn == null ? null : turn.waiter();
if (waiter == null || waiter.isDone()) {
// Nobody is blocked on THIS turn (it had no send, or its fleet_reply already won). Skip
// Nobody is blocked on THIS turn (it had no send, or its bridge_reply already won). Skip
// the scrape; resolving the current waiter here would be the CB-116 cross-turn stale reply.
inFlight.remove(target, turn);
return;
}
// fleetd#164: a BUSY -> DONE transition inside the floor cannot be real work — it's a crash
// signature (e.g. a backend HTTP 400 before the worker did anything), not a fast answer. Fail
// it before spending a scrape on the ordinary path; the reason still carries whatever is on
// screen, since that is usually the backend's own error.
long elapsedNanos = nowNanos.getAsLong() - turn.deliveredAtNanos();
if (elapsedNanos < MIN_TURN_NANOS) {
fail(target, turn, tooFastReason(target, elapsedNanos));
return;
}
String tail;
String assistantBlock = null;
int originalLength = 0;
boolean clipped = false;
boolean scrapeFailed = false;
try {
assistantBlock = lastAssistantBlock(agents.read(target, SCRAPE_SOURCE));
String assistantBlock = lastAssistantBlock(agents.read(target, SCRAPE_SOURCE));
originalLength = assistantBlock.strip().length();
clipped = originalLength > MAX_SCRAPE_CHARS;
tail = clip(assistantBlock);
} catch (RuntimeException e) {
log.warn("completion scrape for {} failed: {}", target, e.getMessage());
// The worker finished but we couldn't read its screen — still resolve the send so the
// caller unblocks; an empty tail beats hanging until the caller's timeout.
log.warn("completion scrape for {} failed; resolving with an empty tail: {}",
target, e.getMessage());
tail = "";
scrapeFailed = true;
}
// fleetd#164: a scrape nobody could read, and a scrape that read cleanly but produced nothing,
// both used to resolve the send as a SUCCESS carrying "" — indistinguishable from a worker that
// genuinely finished with nothing to say. That is the defect: fail loudly instead, naming the
// member, so a caller (including a lead deciding whether to delegate again) can tell a lost
// turn from a real empty answer.
if (scrapeFailed || tail.isEmpty()) {
fail(target, turn, emptyScrapeReason(target, scrapeFailed));
return;
}
// Misattribution guard (CB-115): if the scrape is byte-identical to the pane content at
// delivery, this turn produced no new output — the boundary belongs to the previous turn's
// wind-down (common on rapid back-to-back sends). Suppress rather than resolve the send with
// a stale answer; the real fleet_reply (or a later genuine completion) resolves it instead.
// a stale answer; the real bridge_reply (or a later genuine completion) resolves it instead.
// A scrape that failed to read is exempt — an empty tail there is "couldn't see", not "no change".
String baseline = turn.baseline();
if (baseline != null && baseline.equals(tail)) {
if (!scrapeFailed && baseline != null && baseline.equals(tail)) {
log.debug("suppressing misattributed completion for {} (no output change since delivery)",
target);
return; // keep the in-flight record: a later genuine completion still needs it
}
// CB-578 stage A: a turn that ended with no fleet_reply AND whose scrape matches the
// backend's configured usage-limit pattern is a refusal, not an answer. Classify it as
// BACKEND_EXHAUSTED rather than handing the caller a scrape that reads like a real reply.
Pattern exhausted = exhaustedPatterns.patternFor(target);
String matchedLine = exhausted == null ? null : firstMatchingLine(assistantBlock, exhausted);
if (matchedLine != null) {
String reason = "backend exhausted (usage limit): " + matchedLine;
if (rendezvous.resolveExhausted(waiter, reason)) {
inFlight.remove(target, turn);
log.warn("completion for {} classified BACKEND_EXHAUSTED (no fleet_reply; scrape "
+ "matched the profile's exhausted pattern): {}", target, reason);
// CB-578 stage B: only on the resolution that actually won the race — a late
// duplicate must never quarantine a credential twice for one refusal.
exhaustionSink.onExhausted(target, reason);
}
return;
}
// fleetd#164 (part 2): a scrape that read cleanly and produced content still isn't a real
// reply when that content is the backend's own rejection (e.g. an HTTP 400 before the worker
// did any work). Classify it as a failure naming the member, rather than handing the caller a
// scrape that reads like a completed answer.
String backendError = firstMatchingLine(assistantBlock, BACKEND_ERROR);
if (backendError != null) {
// Carry the whole scrape, not just the matched line. The pattern is a heuristic: a member
// that forgot fleet_reply while reporting *about* a backend error matches it too. Failing
// is still right — the caller must not read a scrape as an answer — but dropping the rest
// of the pane would destroy the report, which is the same defect fleetd#164 is about.
fail(target, turn, "member " + target + " ended on a backend error: " + backendError
+ "\n--- pane tail ---\n" + tail);
return;
}
String completion = clipped ? tail + "\n" + CLIPPED_PANE_TAIL_MARKER : tail;
if (rendezvous.resolveCompletion(waiter, completion)) {
inFlight.remove(target, turn);
if (clipped) {
log.warn("completion scrape for {} clipped from {} chars to the {} char cap; "
+ "member did not call fleet_reply, so the pane tail is partial",
+ "member did not call bridge_reply, so the pane tail is partial",
target, originalLength, MAX_SCRAPE_CHARS);
}
log.debug("resolved send to {} via turn-completion fallback ({} chars scraped)",
@@ -348,75 +231,6 @@ public final class CompletionResolver implements TurnListener {
}
}
/**
* fleetd#164: the failure reason for a turn that settled inside {@link #MIN_TURN_NANOS} — names
* the member and both timings, and appends whatever the pane shows (usually the backend's own
* error) so the caller sees the cause, not just "it failed".
*/
private String tooFastReason(String target, long elapsedNanos) {
String scrape;
try {
scrape = clip(agents.read(target, SCRAPE_SOURCE));
} catch (RuntimeException e) {
scrape = "";
}
String reason = String.format(
"member %s went BUSY -> DONE in %dms (floor %dms) — too fast to be real work, most "
+ "likely a backend error before any work started",
target, elapsedNanos / 1_000_000, MIN_TURN_NANOS / 1_000_000);
return scrape.isBlank() ? reason : reason + ": " + scrape;
}
/**
* fleetd#164: the failure reason for a scrape that produced zero characters — names the member
* and says plainly that the turn produced nothing, so a caller (a lead deciding whether to
* delegate again included) never mistakes a lost turn for a genuinely empty reply.
*/
private static String emptyScrapeReason(String target, boolean scrapeFailed) {
return "member " + target + " turn completed with an empty scrape (0 chars) — "
+ (scrapeFailed ? "its pane could not be read; " : "")
+ "treating as a lost turn, not a real answer";
}
/**
* The first line of {@code text} matching {@code pattern}, stripped — the CB-578 stage A
* evidence carried in a {@code BACKEND_EXHAUSTED} reason so the operator sees the real refusal
* text, never a generic label. {@code null} if no line matches.
*/
static String firstMatchingLine(String text, Pattern pattern) {
if (text == null || text.isEmpty()) return null;
for (String line : text.split("\n", -1)) {
if (pattern.matcher(line).find()) {
return line.strip();
}
}
return null;
}
/**
* Coverage summary for the CB-578 stage A exhausted-pattern classification, logged at startup
* the way {@link dev.ltms.fleet.health.FleetHealthMonitor#coverage} is — so an operator can
* see whether the classification is on, and for which profiles, without reading every
* profile's config by hand.
*
* @param allProfiles every configured profile name
* @param configuredProfiles the subset of {@code allProfiles} that carry an exhausted pattern
*/
public static String coverage(Set<String> allProfiles, Set<String> configuredProfiles) {
if (configuredProfiles.isEmpty()) {
return "off (no profile has an exhaustedPattern configured; profiles: " + sorted(allProfiles) + ")";
}
Set<String> unconfigured = new TreeSet<>(allProfiles);
unconfigured.removeAll(configuredProfiles);
return unconfigured.isEmpty()
? "full (all profiles configured: " + sorted(allProfiles) + ")"
: "partial (configured: " + sorted(configuredProfiles) + "; not configured: " + sorted(unconfigured) + ")";
}
private static List<String> sorted(Set<String> names) {
return names.stream().sorted().toList();
}
private static String clip(String s) {
if (s == null) return "";
String trimmed = s.strip();
@@ -1,9 +1,7 @@
package dev.ltms.fleet.inject;
package dev.ltms.bridged.inject;
import dev.ltms.fleet.herdr.AgentControl;
import dev.ltms.fleet.herdr.AgentStatus;
import dev.ltms.fleet.herdr.HerdrRouter;
import dev.ltms.fleet.msg.TurnToken;
import dev.ltms.bridged.herdr.AgentControl;
import dev.ltms.bridged.herdr.AgentStatus;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@@ -82,7 +80,7 @@ public final class Injector {
/**
* The single source for the injector poll cadence — how often the {@link StatusPoller} drives
* {@link #onStatus} at. {@code Fleetd} passes this to every {@link StatusPoller} it constructs,
* {@link #onStatus} at. {@code Bridged} passes this to every {@link StatusPoller} it constructs,
* and this class reads it to state the readiness grace in seconds on the CB-562 expiry log
* instead of hardcoding "60s". One constant, so a cadence change cannot silently desync a log
* that claims a grace duration.
@@ -90,7 +88,6 @@ public final class Injector {
public static final long POLL_INTERVAL_MILLIS = 250;
private final AgentControl agents;
private final HerdrRouter router;
private final TurnListener turnListener;
private final Predicate<String> ready; // CB-113: a target is deliverable only when available
private final Consumer<String> forget; // CB-114: clear a gone worker's readiness/presence
@@ -126,27 +123,13 @@ public final class Injector {
public Injector(AgentControl agents, TurnListener turnListener, Predicate<String> ready,
Consumer<String> forget) {
this.agents = agents;
this.router = null;
this.turnListener = turnListener;
this.ready = ready;
this.forget = forget;
}
public Injector(HerdrRouter router, TurnListener turnListener, Predicate<String> ready,
Consumer<String> forget) {
this.agents = null;
this.router = router;
this.turnListener = turnListener;
this.ready = ready;
this.forget = forget;
}
private AgentControl agentsFor(String target) {
return router != null ? router.agentsFor(target) : agents;
}
/** A pending message and the future that completes when it has been delivered. */
private record Pending(String text, TurnToken token, CompletableFuture<Void> delivered) {
private record Pending(String text, CompletableFuture<Void> delivered) {
}
/** Per-worker delivery state, guarded by its own monitor (single writer per worker). */
@@ -176,9 +159,9 @@ public final class Injector {
* <p>Uses an atomic map update so a concurrent {@link #drop} cannot slip between "find the
* target" and "queue the message" and orphan it in a target it just removed.
*/
public CompletableFuture<Void> enqueue(String target, String text, TurnToken token) {
public CompletableFuture<Void> enqueue(String target, String text) {
CompletableFuture<Void> delivered = new CompletableFuture<>();
Pending p = new Pending(text, token, delivered);
Pending p = new Pending(text, delivered);
targets.compute(target, (_, existing) -> {
Target t = (existing != null) ? existing : new Target();
t.add(p); // synchronized on the Target monitor — atomic with a concurrent drop
@@ -269,7 +252,7 @@ public final class Injector {
if (p != null && ready.test(target)) {
t.notReadySincePoll = 0;
try {
agentsFor(target).send(target, p.text());
agents.send(target, p.text());
t.queue.poll();
t.awaitingPickup = true;
t.awaitingCompletion = true;
@@ -329,7 +312,7 @@ public final class Injector {
// thread while it holds the target lock.
if (resubmit) {
try {
agentsFor(target).submit(target); // nudge a raced Enter so the pending paste submits
agents.submit(target); // nudge a raced Enter so the pending paste submits
} catch (RuntimeException e) {
log.debug("resubmit to {} failed (will retry next poll): {}", target, e.getMessage());
}
@@ -373,7 +356,7 @@ public final class Injector {
} else {
// Baseline the pane's pre-turn content so a misattributed completion (no new output)
// can't resolve this send with the previous turn's stale answer (CB-115).
turnListener.onDelivered(target, sent.token());
turnListener.onDelivered(target);
sent.delivered().complete(null);
}
}
@@ -1,4 +1,4 @@
package dev.ltms.fleet.inject;
package dev.ltms.bridged.inject;
import java.util.concurrent.ConcurrentHashMap;
import java.util.Set;
@@ -1,9 +1,8 @@
package dev.ltms.fleet.inject;
package dev.ltms.bridged.inject;
import dev.ltms.fleet.herdr.AgentControl;
import dev.ltms.fleet.herdr.AgentStatus;
import dev.ltms.fleet.herdr.HerdrException;
import dev.ltms.fleet.herdr.HerdrRouter;
import dev.ltms.bridged.herdr.AgentControl;
import dev.ltms.bridged.herdr.AgentStatus;
import dev.ltms.bridged.herdr.HerdrException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@@ -23,7 +22,6 @@ public final class StatusPoller {
private static final Logger log = LoggerFactory.getLogger(StatusPoller.class);
private final AgentControl agents;
private final HerdrRouter router;
private final Injector injector;
private final StatusRefiner refiner;
private final long intervalMillis;
@@ -37,24 +35,11 @@ public final class StatusPoller {
public StatusPoller(AgentControl agents, Injector injector, StatusRefiner refiner,
long intervalMillis) {
this.agents = agents;
this.router = null;
this.injector = injector;
this.refiner = refiner;
this.intervalMillis = intervalMillis;
}
public StatusPoller(HerdrRouter router, Injector injector, long intervalMillis) {
this.agents = null;
this.router = router;
this.injector = injector;
// CB-185: this refiner's own AgentControl (member) is only a default for the legacy 2-arg
// refine() overload — the loop below always calls the 3-arg refine(target, raw, control)
// with the per-target control from router.agentsFor(target), so a lead target is refined
// against the LEAD daemon even though this field points at the member one.
this.refiner = new StatusRefiner(router.memberAgents());
this.intervalMillis = intervalMillis;
}
/** Start the polling loop on a virtual thread. Idempotent. */
public synchronized void start() {
if (running) return;
@@ -71,11 +56,7 @@ public final class StatusPoller {
try {
// herdr's agent_status can misreport a settled worker as `unknown`; refine it
// against the pane content before it drives delivery/completion (CB-115).
// CB-185: refine THROUGH the same control the raw status came from — a router
// splits lead/member targets across two herdr daemons, and reading a lead's pane
// through the (fixed) member refiner never finds it, wedging that lead at UNKNOWN.
AgentControl control = router != null ? router.agentsFor(target) : agents;
AgentStatus status = refiner.refine(target, control.status(target), control);
AgentStatus status = refiner.refine(target, agents.status(target));
injector.onStatus(target, status);
} catch (HerdrException e) {
// The worker's agent is gone — stop trying and unblock its waiters.
@@ -1,7 +1,7 @@
package dev.ltms.fleet.inject;
package dev.ltms.bridged.inject;
import dev.ltms.fleet.herdr.AgentControl;
import dev.ltms.fleet.herdr.AgentStatus;
import dev.ltms.bridged.herdr.AgentControl;
import dev.ltms.bridged.herdr.AgentStatus;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@@ -41,32 +41,15 @@ public final class StatusRefiner {
}
/**
* Return a trustworthy status for {@code target}, reading its pane through this refiner's own
* {@link AgentControl}. Equivalent to {@link #refine(String, AgentStatus, AgentControl)} with
* that control — kept for callers that only ever talk to one herdr daemon.
* Return a trustworthy status for {@code target}. Any non-{@code UNKNOWN} {@code raw} is returned
* unchanged; an {@code UNKNOWN} triggers a pane read and content classification. A read failure
* leaves it {@code UNKNOWN} (the safe default: no delivery, and the stall path still applies).
*/
public AgentStatus refine(String target, AgentStatus raw) {
return refine(target, raw, agents);
}
/**
* Return a trustworthy status for {@code target}. Any non-{@code UNKNOWN} {@code raw} is returned
* unchanged; an {@code UNKNOWN} triggers a pane read (through {@code control}) and content
* classification. A read failure leaves it {@code UNKNOWN} (the safe default: no delivery, and
* the stall path still applies).
*
* <p>CB-185: {@code control} must be the {@link AgentControl} for the <em>same</em> daemon the
* raw status was sampled from — a router splits lead and member targets across two herdr
* daemons, and reading a lead's pane through the member client (or vice versa) fails to find
* the pane and leaves the target wedged at {@code UNKNOWN} forever. Callers that route per
* target (e.g. {@code StatusPoller}) must pass that target's control explicitly rather than
* relying on the control fixed at construction.
*/
public AgentStatus refine(String target, AgentStatus raw, AgentControl control) {
if (raw != AgentStatus.UNKNOWN) return raw;
String pane;
try {
pane = control.read(target, PROBE_SOURCE);
pane = agents.read(target, PROBE_SOURCE);
} catch (RuntimeException e) {
log.debug("status refine read for {} failed; leaving UNKNOWN: {}", target, e.getMessage());
return AgentStatus.UNKNOWN;
@@ -1,12 +1,10 @@
package dev.ltms.fleet.inject;
import dev.ltms.fleet.msg.TurnToken;
package dev.ltms.bridged.inject;
/**
* Notified when a worker's delegated turn is observed to complete — a confirmed
* {@code WORKING → IDLE} transition after a delivery. This is the CB-106 completion signal the
* {@code CompletionResolver} uses to resolve a blocked send whose worker never called
* {@code fleet_reply}. Kept as a seam so the {@link Injector} needs no dependency on the message
* {@code bridge_reply}. Kept as a seam so the {@link Injector} needs no dependency on the message
* layer and stays unit-testable with a capturing fake.
*/
@FunctionalInterface
@@ -59,7 +57,7 @@ public interface TurnListener {
* resolve the send with the previous turn's stale answer. A default no-op keeps the interface
* functional for callers that don't scrape.
*/
default void onDelivered(String target, TurnToken token) {
default void onDelivered(String target) {
}
/** No-op default for callers that only need delivery, not completion signalling. */
@@ -1,12 +1,12 @@
package dev.ltms.fleet.lead;
package dev.ltms.bridged.lead;
import dev.ltms.fleet.config.FleetConfig;
import dev.ltms.fleet.herdr.Agent;
import dev.ltms.fleet.herdr.AgentControl;
import dev.ltms.fleet.herdr.HerdrException;
import dev.ltms.fleet.herdr.Tab;
import dev.ltms.fleet.herdr.Workspace;
import dev.ltms.fleet.herdr.WorkspaceControl;
import dev.ltms.bridged.config.BridgedConfig;
import dev.ltms.bridged.herdr.Agent;
import dev.ltms.bridged.herdr.AgentControl;
import dev.ltms.bridged.herdr.HerdrException;
import dev.ltms.bridged.herdr.Tab;
import dev.ltms.bridged.herdr.Workspace;
import dev.ltms.bridged.herdr.WorkspaceControl;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@@ -15,7 +15,8 @@ import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import dev.ltms.fleet.peer.PeerLauncher;
import java.util.Set;
import java.util.stream.Collectors;
/**
* Starts the leads {@code fleet.leaders:} declares, when none is already running (CB-558).
@@ -25,7 +26,7 @@ import dev.ltms.fleet.peer.PeerLauncher;
* must never receive:
* <ol>
* <li>it appends the <em>reply charter</em> — "you are an off-subscription worker … end every turn
* with {@code fleet_reply}". A lead is the orchestrator; telling it that it is a worker is
* with {@code bridge_reply}". A lead is the orchestrator; telling it that it is a worker is
* exactly backwards.</li>
* <li>it registers the session with {@code SessionManager}, which subjects it to the idle reaper,
* the context cap and the shutdown drain. An idle lead is the normal state of a lead, so the
@@ -39,7 +40,7 @@ import dev.ltms.fleet.peer.PeerLauncher;
* broken later, quietly.
*
* <p><strong>Liveness, and the label round-trip.</strong> {@code LeadTabScanner} used to be able to
* promise that fleetd never writes a lead label. That is no longer true — an auto-launched lead is
* promise that bridged never writes a lead label. That is no longer true — an auto-launched lead is
* labelled by this class, and the scanner reads that label back. The risk this opens is not
* privilege escalation (the tab label never granted anything a pane could take for itself; see that
* class's javadoc), but <em>staleness</em>: a label left behind by a crashed session would otherwise
@@ -53,14 +54,14 @@ public final class LeadLauncher {
private final AgentControl agents;
private final WorkspaceControl spaces;
private final FleetConfig cfg;
private final BridgedConfig cfg;
/**
* @param agents herdr agent control (start, list)
* @param spaces workspace / tab control (ensure, create, label, list)
* @param cfg the loaded config — {@code fleet.leaders}, {@code profiles} and each lead's tab
* @param cfg the loaded config — {@code fleet.leaders}, {@code profiles} and the lead pins
*/
public LeadLauncher(AgentControl agents, WorkspaceControl spaces, FleetConfig cfg) {
public LeadLauncher(AgentControl agents, WorkspaceControl spaces, BridgedConfig cfg) {
this.agents = agents;
this.spaces = spaces;
this.cfg = cfg;
@@ -74,7 +75,7 @@ public final class LeadLauncher {
* the remaining leads are still attempted.
*/
public int ensureLeads() {
Map<String, FleetConfig.Leader> leaders = cfg.fleet().leaders();
Map<String, BridgedConfig.Leader> leaders = cfg.fleet().leaders();
if (leaders.isEmpty()) {
return 0;
}
@@ -90,9 +91,9 @@ public final class LeadLauncher {
}
int started = 0;
for (Map.Entry<String, FleetConfig.Leader> e : leaders.entrySet()) {
for (Map.Entry<String, BridgedConfig.Leader> e : leaders.entrySet()) {
String name = e.getKey();
FleetConfig.Leader lead = e.getValue();
BridgedConfig.Leader lead = e.getValue();
int running = live.getOrDefault(name, 0);
int wanted = lead.instances();
@@ -101,15 +102,15 @@ public final class LeadLauncher {
continue;
}
if (!lead.isCreatable()) {
// A lead with a `tab:` but no `profile:` is recognise-only by design: the operator
// opens it by hand. Say so once rather than looking like a silent failure.
// A lead with a `terminal:` pin and no `profile:` is recognise-only by design: the
// operator opens it by hand. Say so once rather than looking like a silent failure.
log.info("lead '{}' is not live, and names no profile — it can be recognised but not "
+ "launched. Add `profile:` under fleet.leaders.{} to have fleetd start it.",
+ "launched. Add `profile:` under fleet.leaders.{} to have bridged start it.",
name, name);
continue;
}
FleetConfig.Profile profile = cfg.profiles().get(lead.profile());
BridgedConfig.Profile profile = cfg.profiles().get(lead.profile());
if (profile == null) {
log.warn("lead '{}' names profile '{}', which is not configured — not launching",
name, lead.profile());
@@ -126,27 +127,29 @@ public final class LeadLauncher {
}
/**
* How many live leads exist per configured name: a running agent in a tab labelled with that
* lead's exact {@code tab} (CB-579). Member workspaces are excluded, exactly as the scanner
* excludes them: a member must not be counted as a lead because it happens to sit in a matching
* tab.
* How many live leads exist per configured name.
*
* <p>There used to be a second path here — a running agent on the terminal a
* {@code fleet.leaders.<name>.terminal} pin named, for a lead opened and pinned by hand. That
* pin is retired: {@code tab} is now the only field identity depends on, and {@link Agent}
* already carries {@link Agent#tabId()} directly, so a hand-opened lead is found the same way an
* auto-launched one is — by labelling its tab to match.
* <p>Two independent pieces of evidence, because either alone double-spawns:
* <ul>
* <li>a running agent in a tab labelled {@code "<tabPrefix> <name>"} — how an auto-launched
* lead, or an operator following the labelling convention, is found;</li>
* <li>a running agent on a terminal the config pins in {@code fleet.leaders.<name>.terminal} —
* how a lead the operator opened and pinned by hand is found. Without this, a pinned lead
* whose tab carries no matching label would be relaunched on every boot.</li>
* </ul>
* Member workspaces are excluded, exactly as the scanner excludes them: a member must not be
* counted as a lead because it happens to sit in a matching tab.
*/
private Map<String, Integer> liveLeads(Map<String, FleetConfig.Leader> leaders) {
// A lead and the members share ONE workspace now (the operator asked for a single "session"
// with many tabs), so a workspace can no longer be excluded wholesale — the lead lives in the
// member workspace by design. The sole discriminator is the exact tab label: a lead carries
// its configured `fleet.leaders.<name>.tab` ("lead: opus"), while a member carries its
// profile's `worker: {profile} #{n}` template. These never collide, so an exact-label match
// separates them without needing to know which workspace anyone is in.
private Map<String, Integer> liveLeads(Map<String, BridgedConfig.Leader> leaders) {
Set<String> memberSpaces = cfg.profiles().values().stream()
.map(BridgedConfig.Profile::workspace)
.filter(w -> w != null && !w.isBlank())
.collect(Collectors.toSet());
// tabId → the lead name its label declares.
Map<String, String> nameByTab = new LinkedHashMap<>();
for (Workspace ws : spaces.listWorkspaces()) {
if (ws.workspaceId() == null) {
if (ws.workspaceId() == null || memberSpaces.contains(ws.label())) {
continue;
}
for (Tab tab : spaces.listTabs(ws.workspaceId())) {
@@ -157,9 +160,20 @@ public final class LeadLauncher {
}
}
// terminalId → the lead name the config pins it to.
Map<String, String> nameByPinnedTerminal = new LinkedHashMap<>();
leaders.forEach((name, lead) -> {
if (lead.terminal() != null && !lead.terminal().isBlank()) {
nameByPinnedTerminal.put(lead.terminal().strip(), name);
}
});
Map<String, Integer> counts = new LinkedHashMap<>();
for (Agent a : agents.list()) {
String name = nameByTab.get(a.tabId());
if (name == null) {
name = nameByPinnedTerminal.get(a.terminalId());
}
if (name != null) {
counts.merge(name, 1, Integer::sum);
}
@@ -170,17 +184,16 @@ public final class LeadLauncher {
/**
* The configured lead a tab label names, or {@code null} for a label that names none.
*
* <p>Matched exactly (case-insensitively) against each lead's configured {@code tab}, so an
* <p>Matched against the declared lead names rather than by splitting on the prefix, so an
* operator's {@code "lead: something-else"} tab is not mistaken for a configured lead.
*/
private String leadNameOf(String label, Map<String, FleetConfig.Leader> leaders) {
private String leadNameOf(String label, Map<String, BridgedConfig.Leader> leaders) {
if (label == null) {
return null;
}
String l = label.strip();
for (Map.Entry<String, FleetConfig.Leader> e : leaders.entrySet()) {
String tab = e.getValue().tabLabel();
if (tab != null && l.equalsIgnoreCase(tab.strip())) {
for (Map.Entry<String, BridgedConfig.Leader> e : leaders.entrySet()) {
if (l.equalsIgnoreCase(e.getValue().tabLabel(e.getKey()).strip())) {
return e.getKey();
}
}
@@ -188,8 +201,8 @@ public final class LeadLauncher {
}
/** Start one lead. Returns false (having logged) rather than throwing on any failure. */
private boolean launch(String name, FleetConfig.Leader lead, FleetConfig.Profile profile) {
String label = lead.tabLabel();
private boolean launch(String name, BridgedConfig.Leader lead, BridgedConfig.Profile profile) {
String label = lead.tabLabel(name);
String cwd = (lead.cwd() == null || lead.cwd().isBlank())
? System.getProperty("user.dir") : lead.cwd();
@@ -235,7 +248,7 @@ public final class LeadLauncher {
* The herdr agent kind for this profile — the same value the matching member adapter passes, so
* herdr resolves the same executable for a lead as it does for a member on that backend.
*/
private static String herdrKind(FleetConfig.Profile profile) {
private static String herdrKind(BridgedConfig.Profile profile) {
return profile.isOpenCode() ? "opencode" : "claude";
}
@@ -247,12 +260,11 @@ public final class LeadLauncher {
* any other primary. This is the single most important difference from the member launchers;
* do not "unify" it back.
*/
private List<String> leadArgv(FleetConfig.Profile profile) {
private List<String> leadArgv(BridgedConfig.Profile profile) {
List<String> argv = new ArrayList<>(profile.argv());
if (profile.hasMcp()) {
argv.add("--mcp-config");
argv.add("{\"mcpServers\":{\"" + PeerLauncher.MCP_MOUNT_NAME
+ "\":{\"type\":\"http\",\"url\":\""
argv.add("{\"mcpServers\":{\"bridge\":{\"type\":\"http\",\"url\":\""
+ profile.mcpUrl() + "\"}}}");
}
// Appended last, for the same reason the member launcher does it (CB-533): the argv is
@@ -274,7 +286,7 @@ public final class LeadLauncher {
* definition, so there is no configuration under which pointing it elsewhere is correct, and a
* profile that carries them (a member profile reused as a lead's backend) must not leak them in.
*/
private Map<String, String> leadEnv(FleetConfig.Profile profile) {
private Map<String, String> leadEnv(BridgedConfig.Profile profile) {
Map<String, String> out = new LinkedHashMap<>();
if (profile.env() != null) {
out.putAll(profile.env());
@@ -1,4 +1,4 @@
package dev.ltms.fleet.logging;
package dev.ltms.bridged.logging;
import ch.qos.logback.classic.Level;
import ch.qos.logback.classic.Logger;
@@ -1,28 +1,24 @@
package dev.ltms.fleet.mcp;
package dev.ltms.bridged.mcp;
import dev.ltms.fleet.auth.AuditLog;
import dev.ltms.fleet.auth.Authz;
import dev.ltms.fleet.auth.CallerResolver;
import dev.ltms.fleet.auth.Principal;
import dev.ltms.fleet.auth.Role;
import dev.ltms.fleet.guard.GuardException;
import dev.ltms.fleet.herdr.Agent;
import dev.ltms.fleet.metrics.FleetMetrics;
import dev.ltms.fleet.metrics.Metrics;
import dev.ltms.fleet.inject.MemberPresence;
import dev.ltms.fleet.herdr.HerdrException;
import dev.ltms.fleet.msg.LeadChannel;
import dev.ltms.fleet.msg.LeadMessage;
import dev.ltms.fleet.msg.MessageService;
import dev.ltms.fleet.msg.Rendezvous;
import dev.ltms.fleet.peer.PeerUnreachableException;
import dev.ltms.fleet.placement.BackendQuarantine;
import dev.ltms.fleet.placement.PlacementException;
import dev.ltms.fleet.session.SessionManager;
import dev.ltms.fleet.session.MemberSession;
import dev.ltms.fleet.session.WorktreeRequest;
import dev.ltms.fleet.peer.MemberRole;
import dev.ltms.fleet.peer.PeerLauncher;
import dev.ltms.bridged.auth.AuditLog;
import dev.ltms.bridged.auth.Authz;
import dev.ltms.bridged.auth.CallerResolver;
import dev.ltms.bridged.auth.Principal;
import dev.ltms.bridged.auth.Role;
import dev.ltms.bridged.guard.GuardException;
import dev.ltms.bridged.herdr.Agent;
import dev.ltms.bridged.metrics.BridgedMetrics;
import dev.ltms.bridged.metrics.Metrics;
import dev.ltms.bridged.inject.MemberPresence;
import dev.ltms.bridged.herdr.HerdrException;
import dev.ltms.bridged.msg.MessageService;
import dev.ltms.bridged.msg.Rendezvous;
import dev.ltms.bridged.peer.PeerUnreachableException;
import dev.ltms.bridged.session.SessionManager;
import dev.ltms.bridged.session.MemberSession;
import dev.ltms.bridged.session.WorktreeRequest;
import dev.ltms.bridged.peer.MemberRole;
import dev.ltms.bridged.peer.PeerLauncher;
import io.modelcontextprotocol.common.McpTransportContext;
import io.modelcontextprotocol.json.McpJsonMapper;
import io.modelcontextprotocol.json.jackson3.JacksonMcpJsonMapperSupplier;
@@ -37,40 +33,31 @@ import jakarta.servlet.http.HttpServlet;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Set;
import java.util.UUID;
import java.util.concurrent.ConcurrentHashMap;
import java.util.function.BiFunction;
import java.util.function.Function;
import java.util.function.LongSupplier;
import java.util.function.Supplier;
import java.util.stream.Collectors;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* The MCP SERVER face (CB-105): a Streamable-HTTP MCP server whose tools are <em>thin adapters</em>
* over the same {@link MessageService}/{@link Rendezvous} the REST routes use — so the two are
* validated by parity, not by re-implementing behaviour. The primary Opus calls {@code fleet_send}
* / {@code fleet_status}; the worker calls {@code fleet_reply}.
* validated by parity, not by re-implementing behaviour. The primary Opus calls {@code bridge_send}
* / {@code bridge_status}; the worker calls {@code bridge_reply}.
*
* <p>Beyond delegation the primary also manages the fleet here (CB-108): {@code fleet_spawn} /
* {@code fleet_list} / {@code fleet_stop} drive the {@link PeerLauncher} SPI so a worker's whole
* <p>Beyond delegation the primary also manages the fleet here (CB-108): {@code bridge_spawn} /
* {@code bridge_list} / {@code bridge_stop} drive the {@link PeerLauncher} SPI so a worker's whole
* lifecycle is managed through MCP, with each adapter's subscription boundary enforced inside it.
*
* <p>The tool <em>logic</em> lives in package-private static methods returning a
* {@link McpSchema.CallToolResult}, so it is unit-testable without standing up the HTTP transport;
* the SDK owns the wire protocol. Mount {@link #servlet()} at {@code /mcp} on the daemon's Jetty.
*/
public final class FleetMcp {
private static final Logger log = LoggerFactory.getLogger(FleetMcp.class);
public final class BridgeMcp {
private static final long DEFAULT_TIMEOUT_MS = 25_000;
private static final long MAX_TIMEOUT_MS = 120_000;
// fleet_ask blocks the WORKER's own MCP call, which its client caps near 60s — default under
// bridge_ask blocks the WORKER's own MCP call, which its client caps near 60s — default under
// that so the bridge returns a clean timeout before the client severs the call (CB-205).
private static final long ASK_DEFAULT_TIMEOUT_MS = 55_000;
private static final long ASK_MAX_TIMEOUT_MS = 115_000;
@@ -91,11 +78,8 @@ public final class FleetMcp {
private final Metrics metrics; // CB-502: null → auth failures not counted
private final CapacitySource capacity;
private final HealthCoverageSource healthCoverage;
private final QuarantineSource quarantine;
/** CB-637: this daemon's lead-to-lead channel; {@code null} when no coordinator is configured. */
private final LeadChannel leadChannel;
/** Capacity facts used by {@code fleet_list}; production must supply the placement live count. */
/** Capacity facts used by {@code bridge_list}; production must supply the placement live count. */
public record CapacitySource(Function<String, Integer> liveCount, Function<String, Integer> maxLoad,
Supplier<Set<String>> configuredProfiles, LongSupplier clock) {
/** Inert test-only source. It omits capacity rather than inventing zero live counts. */
@@ -106,52 +90,24 @@ public final class FleetMcp {
/** Coverage is supplied by the health wiring, not inferred from a missing dependency. */
public record HealthCoverageSource(Supplier<String> value) { }
/**
* CB-578 stage B quarantine facts used by {@code fleet_profiles}: a profile → credential id
* lookup, plus the shared {@link BackendQuarantine} to read remaining cooldowns off.
*/
public record QuarantineSource(Function<String, String> credentialIdFor, BackendQuarantine quarantine) {
/** Inert source — no profile is ever reported quarantined. Explicit stand-in, not a default. */
public static QuarantineSource none() { return new QuarantineSource(_ -> null, BackendQuarantine.none()); }
}
/**
* @param callers resolves each call's {@link Principal}; {@code null} disables authorization.
* This surface needs its own enforcement: {@code /mcp} is a raw servlet on
* Jetty's context handler and never passes through Javalin's {@code before}
* filter, so the REST guard does not cover it.
* @param metrics registry for auth-failure counting; may be {@code null}
* @param quarantine CB-578 stage B facts for {@code fleet_profiles}; required — pass
* {@link QuarantineSource#none()} for a caller that does not want the feature
*/
public FleetMcp(MessageService messages, PeerLauncher workers, SessionManager sessions,
public BridgeMcp(MessageService messages, PeerLauncher workers, SessionManager sessions,
ConnectionIdentity identity, MemberPresence presence, PrimaryRegistry primaryRegistry,
CallerResolver callers, Metrics metrics, CapacitySource capacity, HealthCoverageSource healthCoverage,
QuarantineSource quarantine) {
this(messages, workers, sessions, identity, presence, primaryRegistry, callers, metrics, capacity,
healthCoverage, quarantine, null);
}
/**
* As above, with this daemon's lead-to-lead channel (CB-637). {@code leadChannel} is
* {@code null} whenever no {@code coordinator:} block is configured or its broker could not be
* reached at boot — cross-daemon lead messaging is simply off, and {@code fleet_send{coordId}}
* says so rather than failing obscurely.
*/
public FleetMcp(MessageService messages, PeerLauncher workers, SessionManager sessions,
ConnectionIdentity identity, MemberPresence presence, PrimaryRegistry primaryRegistry,
CallerResolver callers, Metrics metrics, CapacitySource capacity, HealthCoverageSource healthCoverage,
QuarantineSource quarantine, LeadChannel leadChannel) {
this.leadChannel = leadChannel;
CallerResolver callers, Metrics metrics, CapacitySource capacity, HealthCoverageSource healthCoverage) {
this.capacity = capacity;
this.quarantine = Objects.requireNonNull(quarantine, "quarantine");
this.healthCoverage = healthCoverage;
McpJsonMapper json = new JacksonMcpJsonMapperSupplier().get();
this.transport = HttpServletStreamableServerTransportProvider.builder()
.jsonMapper(json)
.mcpEndpoint("/mcp")
// Resolve the caller from the connection (peer PID → herdr pane) in one lookup: the
// worker terminal for fleet_reply (no spoofable arg), and the PID so fleet_spawn can
// worker terminal for bridge_reply (no spoofable arg), and the PID so bridge_spawn can
// inherit the primary's cwd (CB-112). Any contact from a worker marks it available
// (CB-113) — its MCP initialize is the reliable "the agent is up" signal.
.contextExtractor(req -> {
@@ -172,9 +128,10 @@ public final class FleetMcp {
CALLER_NAME, orEmpty(p.name())));
})
.build();
// Each handler is built once and wired to its fleet_* tool below.
BiFunction<McpSyncServerExchange, McpSchema.CallToolRequest, McpSchema.CallToolResult> sendHandler =
(exchange, req) -> {
this.server = McpServer.sync(transport)
.serverInfo("bridge", "0.1.0")
.capabilities(McpSchema.ServerCapabilities.builder().tools(true).build())
.toolCall(sendTool(), (exchange, req) -> {
McpSchema.CallToolResult denied = deny(exchange, Authz.Action.SEND,
str(req.arguments(), "sessionId"));
if (denied != null) return denied;
@@ -188,15 +145,8 @@ public final class FleetMcp {
String target = str(a, "sessionId");
String content = str(a, "content");
String turnId = str(a, "turnId");
String coordId = str(a, "coordId");
if (coordId != null && !coordId.isBlank()) {
// CB-637: a peer LEAD on another daemon, addressed by coord-id over the shared
// coordination broker. Checked before the turnId branch so a call that sets both
// is rejected as the conflict it is, rather than silently taking one route.
return sendToLead(leadChannel, coordId, content, target, turnId);
}
if (turnId != null && !turnId.isBlank()) {
// Answering a worker's fleet_ask (CB-205): resolve its blocked question and
// Answering a worker's bridge_ask (CB-205): resolve its blocked question and
// block for the worker's reply as it resumes the same turn. This is the same
// delegation, so ownership is left untouched (CB-548) — never re-recorded.
return answer(messages, turnId, content, timeoutMs(a));
@@ -211,49 +161,43 @@ public final class FleetMcp {
return Boolean.FALSE.equals(a.get("wait"))
? sendAsync(messages, target, content, onAccepted, workers.profiles())
: send(messages, target, content, timeoutMs(a), onAccepted, workers.profiles());
};
// fleet_reply's identity is the CONNECTION, never an argument — so the authz check
// is "is this caller a worker at all", and it can only ever reply as itself.
BiFunction<McpSyncServerExchange, McpSchema.CallToolRequest, McpSchema.CallToolResult> replyHandler =
(exchange, req) -> {
})
// bridge_reply's identity is the CONNECTION, never an argument — so the authz check
// is "is this caller a worker at all", and it can only ever reply as itself.
.toolCall(replyTool(), (exchange, req) -> {
String self = callerTerminal(exchange);
McpSchema.CallToolResult denied = deny(exchange, Authz.Action.REPLY, self);
if (denied != null) return denied;
return reply(messages, self, str(req.arguments(), "content"));
};
// fleet_ask (CB-205): a worker's mid-turn question — identity from the CONNECTION.
BiFunction<McpSyncServerExchange, McpSchema.CallToolRequest, McpSchema.CallToolResult> askHandler =
(exchange, req) -> {
})
// bridge_ask (CB-205): a worker's mid-turn question — identity from the CONNECTION.
.toolCall(askTool(), (exchange, req) -> {
String self = callerTerminal(exchange);
McpSchema.CallToolResult denied = deny(exchange, Authz.Action.ASK, self);
if (denied != null) return denied;
return ask(messages, self, str(req.arguments(), "question"), timeoutMs(req.arguments()));
};
BiFunction<McpSyncServerExchange, McpSchema.CallToolRequest, McpSchema.CallToolResult> statusHandler =
(exchange, req) -> {
})
.toolCall(statusTool(), (exchange, req) -> {
McpSchema.CallToolResult denied = deny(exchange, Authz.Action.READ, null);
if (denied != null) return denied;
return status(messages, str(req.arguments(), "sessionId"));
};
BiFunction<McpSyncServerExchange, McpSchema.CallToolRequest, McpSchema.CallToolResult> pollHandler =
(exchange, req) -> {
})
.toolCall(pollTool(), (exchange, req) -> {
McpSchema.CallToolResult denied = deny(exchange, Authz.Action.READ, null);
if (denied != null) return denied;
Map<String, Object> a = req.arguments();
return poll(messages, str(a, "ticket"), str(a, "target"));
};
// CB-307 Increment 3: per-msgId ack (not needed in v1 but supported by the inbox).
// Acking removes a reply from the inbox, so it is a drain, not a read.
BiFunction<McpSyncServerExchange, McpSchema.CallToolRequest, McpSchema.CallToolResult> ackHandler =
(exchange, req) -> {
})
// CB-307 Increment 3: per-msgId ack (not needed in v1 but supported by the inbox).
// Acking removes a reply from the inbox, so it is a drain, not a read.
.toolCall(ackTool(), (exchange, req) -> {
Map<String, Object> a = req.arguments();
McpSchema.CallToolResult denied = deny(exchange, Authz.Action.DRAIN, str(a, "target"));
if (denied != null) return denied;
return ack(messages, str(a, "target"), str(a, "msgId"));
};
// Fleet management (CB-108): spawn/list/stop over ClaudeCodeLauncher.
BiFunction<McpSyncServerExchange, McpSchema.CallToolRequest, McpSchema.CallToolResult> spawnHandler =
(exchange, req) -> {
})
// Fleet management (CB-108): spawn/list/stop over ClaudeCodeLauncher.
.toolCall(spawnTool(), (exchange, req) -> {
McpSchema.CallToolResult denied = deny(exchange, Authz.Action.SPAWN, null);
if (denied != null) return denied;
String caller = callerTerminal(exchange);
@@ -266,64 +210,31 @@ public final class FleetMcp {
// CB-301-ext: optional isolated worktree for parallel implementers.
String callerCwd = identity.cwdForPid(callerPid(exchange));
return spawn(sessions, str(a, "profile"), str(a, "role"), str(a, "cwd"), callerCwd,
callerTerminal(exchange), worktreeRequest(a),
str(a, "sessionName"), str(a, "resumeSessionId"));
};
BiFunction<McpSyncServerExchange, McpSchema.CallToolRequest, McpSchema.CallToolResult> listHandler =
(exchange, _) -> {
callerTerminal(exchange), worktreeRequest(a));
})
.toolCall(listTool(), (exchange, _) -> {
McpSchema.CallToolResult denied = deny(exchange, Authz.Action.READ, null);
if (denied != null) return denied;
return listFleet(workers, sessions, messages, capacity, healthCoverage, quarantine,
return listFleet(workers, sessions, messages, capacity, healthCoverage,
callers == null ? Map.of() : callers.leads(),
callerTerminal(exchange),
leadChannel == null ? null : leadChannel.selfCoordId());
};
BiFunction<McpSyncServerExchange, McpSchema.CallToolRequest, McpSchema.CallToolResult> stopHandler =
(exchange, req) -> {
callerTerminal(exchange));
})
.toolCall(stopTool(), (exchange, req) -> {
String paneId = str(req.arguments(), "paneId");
McpSchema.CallToolResult denied = deny(exchange, Authz.Action.STOP, paneId);
if (denied != null) return denied;
return stop(sessions, paneId);
};
BiFunction<McpSyncServerExchange, McpSchema.CallToolRequest, McpSchema.CallToolResult> profilesHandler =
(exchange, _) -> {
})
.toolCall(profilesTool(), (exchange, _) -> {
McpSchema.CallToolResult denied = deny(exchange, Authz.Action.READ, null);
if (denied != null) return denied;
return profiles(workers, quarantine);
};
BiFunction<McpSyncServerExchange, McpSchema.CallToolRequest, McpSchema.CallToolResult> whoamiHandler =
(exchange, _) -> {
return profiles(workers);
})
.toolCall(whoamiTool(), (exchange, _) -> {
McpSchema.CallToolResult denied = deny(exchange, Authz.Action.READ, null);
if (denied != null) return denied;
return whoami(principal(exchange), sessions);
};
McpSchema.Tool fleetSend = sendTool();
McpSchema.Tool fleetReply = replyTool();
McpSchema.Tool fleetAsk = askTool();
McpSchema.Tool fleetStatus = statusTool();
McpSchema.Tool fleetPoll = pollTool();
McpSchema.Tool fleetAck = ackTool();
McpSchema.Tool fleetSpawn = spawnTool();
McpSchema.Tool fleetList = listTool();
McpSchema.Tool fleetStop = stopTool();
McpSchema.Tool fleetProfiles = profilesTool();
McpSchema.Tool fleetWhoami = whoamiTool();
this.server = McpServer.sync(transport)
.serverInfo("fleet", "0.1.0")
.capabilities(McpSchema.ServerCapabilities.builder().tools(true).build())
.toolCall(fleetSend, sendHandler)
.toolCall(fleetReply, replyHandler)
.toolCall(fleetAsk, askHandler)
.toolCall(fleetStatus, statusHandler)
.toolCall(fleetPoll, pollHandler)
.toolCall(fleetAck, ackHandler)
.toolCall(fleetSpawn, spawnHandler)
.toolCall(fleetList, listHandler)
.toolCall(fleetStop, stopHandler)
.toolCall(fleetProfiles, profilesHandler)
.toolCall(fleetWhoami, whoamiHandler)
})
.build();
this.authz = callers;
this.metrics = metrics;
@@ -385,7 +296,7 @@ public final class FleetMcp {
* without fabricating an SDK {@code McpSyncServerExchange}.
*
* <p>This surface exists because the enforcement was previously unreachable from a test: no
* test constructs a {@code FleetMcp}, so the whole MCP-side gate ran zero times in the suite
* test constructs a {@code BridgeMcp}, so the whole MCP-side gate ran zero times in the suite
* while the REST-side equivalent had ten tests. A security control nothing exercises is a
* claim, not a control.
*
@@ -406,7 +317,7 @@ public final class FleetMcp {
String reason = Authz.isUnauthenticated(caller) ? "unauthenticated" : "forbidden";
AuditLog.denied(caller, action, target, reason);
if (metrics != null) {
metrics.inc(FleetMetrics.AUTH_FAILURES, "reason", reason);
metrics.inc(BridgedMetrics.AUTH_FAILURES, "reason", reason);
}
return error(reason + ": " + caller.describe() + " may not " + action);
}
@@ -477,7 +388,7 @@ public final class FleetMcp {
// --- tool logic (thin adapters over the services; unit-testable) ---------------------------
/**
* {@code fleet_send}: delegate {@code content} to a worker session and block for its reply.
* {@code bridge_send}: delegate {@code content} to a worker session and block for its reply.
* The configured profiles are required so a profile name can never bypass target validation.
*
* (CB-548): {@code onAccepted} records delegator ownership the instant the send is accepted, so
@@ -501,8 +412,8 @@ public final class FleetMcp {
}
/**
* {@code fleet_send} carrying a {@code turnId}: the primary's answer to a worker's
* {@code fleet_ask} (CB-205). Resolves the worker's blocked question and blocks for its reply as
* {@code bridge_send} carrying a {@code turnId}: the primary's answer to a worker's
* {@code bridge_ask} (CB-205). Resolves the worker's blocked question and blocks for its reply as
* it resumes the same turn — surfaced to the primary identically to a normal send.
*/
static McpSchema.CallToolResult answer(MessageService messages, String turnId, String content, Long timeoutMs) {
@@ -514,13 +425,13 @@ public final class FleetMcp {
}
/**
* {@code fleet_ask} (CB-205): a worker pauses its delegated turn to ask the primary, blocking
* {@code bridge_ask} (CB-205): a worker pauses its delegated turn to ask the primary, blocking
* until the primary answers. The worker is identified by its connection ({@code callerTerminal}),
* never an argument — a {@code null} means the caller is not a known worker.
*/
static McpSchema.CallToolResult ask(MessageService messages, String callerTerminal, String question, Long timeoutMs) {
if (callerTerminal == null) {
return error("fleet_ask is for workers only — could not identify the calling worker "
return error("bridge_ask is for workers only — could not identify the calling worker "
+ "from the connection");
}
if (isBlank(question)) {
@@ -530,10 +441,10 @@ public final class FleetMcp {
MessageService.AskResult r = messages.ask(callerTerminal, question, timeout);
return switch (r.outcome()) {
case ANSWERED -> text(r.answer());
case NO_WAITER -> error("no primary is awaiting this turn — fleet_ask only works while a "
+ "fleet_send delegation is open to answer it");
case NO_WAITER -> error("no primary is awaiting this turn — bridge_ask only works while a "
+ "bridge_send delegation is open to answer it");
case TIMED_OUT -> text("[no answer within " + timeout + "ms — the primary did not respond; "
+ "proceed on your best judgement, then call fleet_reply to end the turn]");
+ "proceed on your best judgement, then call bridge_reply to end the turn]");
};
}
@@ -541,20 +452,15 @@ public final class FleetMcp {
private static McpSchema.CallToolResult formatReply(MessageService.Reply r, long timeout) {
return switch (r.outcome()) {
case REPLIED -> text(r.text());
// The worker's turn finished but it never called fleet_reply — hand back the scraped
// The worker's turn finished but it never called bridge_reply — hand back the scraped
// transcript tail, flagged so the primary knows it isn't a structured reply.
case COMPLETED_UNREPLIED -> text(
"[worker finished without a structured fleet_reply — transcript tail follows]\n" + r.text());
"[worker finished without a structured bridge_reply — transcript tail follows]\n" + r.text());
// The worker ran the turn then wedged (CB-109) — surface the error context.
case WORKER_FAILED -> text("[worker failed — turn ended in an unrecoverable state]\n" + r.text());
// The backend refused on a subscription usage limit (CB-578 stage A) — the worker's
// pane stayed healthy, but its account is exhausted. Distinct from WORKER_FAILED so the
// primary gets the real cause, not a generic wedge.
case BACKEND_EXHAUSTED -> text("[backend exhausted — the worker's account refused on a "
+ "usage limit]\n" + r.text());
// The worker paused mid-turn to ask (CB-205) — tell the primary how to answer in-turn.
case QUESTION -> text("[question] the worker paused to ask before it can finish:\n" + r.text()
+ "\n\nAnswer it by calling fleet_send again with turnId=\"" + r.turnId()
+ "\n\nAnswer it by calling bridge_send again with turnId=\"" + r.turnId()
+ "\" and content set to your answer; the worker resumes the same turn.");
case STALE_TURN -> error("that question is no longer open — it timed out or was already "
+ "answered (turnId stale)");
@@ -564,7 +470,7 @@ public final class FleetMcp {
}
/**
* {@code fleet_send} with {@code wait:false}: delegate {@code content} and return a ticket
* {@code bridge_send} with {@code wait:false}: delegate {@code content} and return a ticket
* immediately (fire-and-poll), so a long task isn't cut off by the caller's MCP call timeout.
* The configured profiles are required so a profile name can never bypass target validation.
*
@@ -581,67 +487,19 @@ public final class FleetMcp {
return targetError;
}
String ticket = messages.sendAsync(sessionId, content, onAccepted);
return text("accepted — task delegated. Poll fleet_poll with ticket=" + ticket);
return text("accepted — task delegated. Poll bridge_poll with ticket=" + ticket);
}
/** A configured profile is never a send target; other unknown values may be herdr-owned panes. */
private static McpSchema.CallToolResult profileTargetError(String sessionId, Set<String> profiles) {
if (profiles.contains(sessionId)) {
return error("unknown send target \"" + sessionId + "\": it is a configured profile name, not a "
+ "session id. Call fleet_list to find a member or lead sessionId.");
+ "session id. Call bridge_list to find a member or lead sessionId.");
}
return null;
}
/**
* {@code fleet_send} carrying a {@code coordId} (CB-637): a message to a PEER LEAD, published to
* that lead's durable mailbox on the shared coordination broker. This is the only lead→lead path
* that crosses hosts — the existing pane-injection route can only reach a lead whose herdr socket
* this daemon shares.
*
* <p>{@code coordId} is mutually exclusive with {@code sessionId} and {@code turnId}: those two
* address a worker session owned by <em>this</em> daemon, a coord-id addresses a lead owned by
* another one, and there is no sensible reading of a call that sets both. Rejected by name rather
* than resolved by precedence, so a caller that meant the other route learns it instead of having
* its message quietly go somewhere else.
*
* <p>The publish is synchronous and confirmed by the broker, so the result is a real delivery
* receipt rather than a hopeful one. Its failure — nobody owns {@code coordId}'s mailbox, the
* broker nacked, or the confirm timed out — arrives as {@link IllegalStateException} and is
* turned into a tool error naming the coord-id. It is never allowed to escape as a crash: an
* unreachable peer is an ordinary outcome of addressing a fleet you do not control.
*
* @param leadChannel this daemon's channel, or {@code null} when no coordinator is configured
*/
static McpSchema.CallToolResult sendToLead(LeadChannel leadChannel, String coordId, String content,
String sessionId, String turnId) {
if (!isBlank(sessionId) || !isBlank(turnId)) {
String conflict = !isBlank(sessionId) ? "sessionId" : "turnId";
return error("coordId and " + conflict + " are mutually exclusive: coordId addresses a peer "
+ "LEAD on another daemon over the coordination broker, while " + conflict
+ " addresses a worker session on this one. Pass exactly one.");
}
if (isBlank(content)) {
return error("content is required");
}
if (leadChannel == null) {
return error("lead coordination is not configured (no coordinator: block) — cannot send to "
+ "peer lead \"" + coordId + "\". Add a coordinator: block with a shared broker uri "
+ "and this daemon's selfId, then restart fleetd.");
}
LeadMessage msg = new LeadMessage(UUID.randomUUID().toString(), leadChannel.selfCoordId(),
coordId, content);
try {
leadChannel.publish(coordId, msg);
} catch (IllegalStateException e) {
return error("cannot deliver to peer lead \"" + coordId + "\": " + e.getMessage()
+ ". Check that a daemon is running with coordinator.selfId=\"" + coordId
+ "\" and is connected to the same coordination broker.");
}
return text("delivered to peer lead " + coordId + " (msgId " + msg.msgId() + ")");
}
/** {@code fleet_poll}: check an async delegation by ticket, or drain a worker's inbox by target. */
/** {@code bridge_poll}: check an async delegation by ticket, or drain a worker's inbox by target. */
static McpSchema.CallToolResult poll(MessageService messages, String ticket, String target) {
if (!isBlank(target)) {
var replies = messages.drainReplies(target);
@@ -659,25 +517,25 @@ public final class FleetMcp {
}
return switch (v.phase()) {
case DONE -> text(v.replySource() != null && v.replySource().equals("transcript")
? "[done — worker finished without a structured fleet_reply; transcript tail follows]\n" + v.reply()
? "[done — worker finished without a structured bridge_reply; transcript tail follows]\n" + v.reply()
: v.reply());
case PENDING -> text("[pending — " + v.detail() + "]");
case ASKING -> text("[question — worker is waiting for your answer]\n" + v.reply()
+ "\n\nAnswer it by calling fleet_send again with turnId=\"" + v.turnId()
+ "\n\nAnswer it by calling bridge_send again with turnId=\"" + v.turnId()
+ "\" and content set to your answer; the worker resumes the same turn.");
case FAILED -> text("[failed — " + v.detail() + "]");
};
}
/**
* {@code fleet_reply}: the worker returns its structured answer, resolving the awaiting send
* {@code bridge_reply}: the worker returns its structured answer, resolving the awaiting send
* or — when no send is open — queueing the reply in the inbox for later drain (CB-307).
* {@code callerTerminal} is resolved from the connection (never an argument); a {@code null}
* means the caller is not a known worker (e.g. the primary called it by mistake).
*/
static McpSchema.CallToolResult reply(MessageService messages, String callerTerminal, String content) {
if (callerTerminal == null) {
return error("fleet_reply is for workers only — could not identify the calling worker "
return error("bridge_reply is for workers only — could not identify the calling worker "
+ "from the connection");
}
if (content == null) {
@@ -687,7 +545,7 @@ public final class FleetMcp {
return text("delivered");
}
/** {@code fleet_ack}: acknowledge (remove) a specific reply from the inbox. */
/** {@code bridge_ack}: acknowledge (remove) a specific reply from the inbox. */
static McpSchema.CallToolResult ack(MessageService messages, String target, String msgId) {
if (isBlank(target) || isBlank(msgId)) {
return error("target and msgId are required");
@@ -696,32 +554,20 @@ public final class FleetMcp {
return text("acknowledged " + msgId);
}
/**
* {@code fleet_status}: the live lifecycle status of a worker session, plus — when the worker
* is paused mid-turn in an async {@code fleet_ask} (CB-582) — the open question and how to
* answer it, so a lead on its normal poll cadence does not need the ticket to notice.
*/
/** {@code bridge_status}: the live lifecycle status of a worker session. */
static McpSchema.CallToolResult status(MessageService messages, String sessionId) {
if (isBlank(sessionId)) {
return error("sessionId is required");
}
try {
String base = messages.status(sessionId).name().toLowerCase();
MessageService.PendingAsk ask = messages.pendingAsk(sessionId);
if (ask == null) {
return text(base);
}
return text(base + "\n\n[question — worker is waiting for your answer]\n" + ask.question()
+ "\n\nAnswer it by calling fleet_send again with turnId=\"" + ask.turnId()
+ "\" and content set to your answer; the worker resumes the same turn."
+ " (ticket " + ask.ticket() + ")");
return text(messages.status(sessionId).name().toLowerCase());
} catch (HerdrException e) {
return error("herdr error for session " + sessionId + ": " + e.getMessage());
}
}
/**
* {@code fleet_whoami}: the caller's own identity, as the daemon already resolved it.
* {@code bridge_whoami}: the caller's own identity, as the daemon already resolved it.
*
* <p>Every other tool <em>consumes</em> this identity — the authorization gate, the reply
* rendezvous, the cwd inherit — but none reported it, so an agent had to infer its own role
@@ -729,7 +575,7 @@ public final class FleetMcp {
* name its MCP mount happens to carry, or {@code ANTHROPIC_BASE_URL} (which Claude-model
* workers do not set). The failure mode of guessing is asymmetric and silent: a primary that
* mistakes itself for a worker is refused by {@link Authz} and learns immediately, while a
* worker that mistakes itself for the primary ends its turn without {@code fleet_reply} and
* worker that mistakes itself for the primary ends its turn without {@code bridge_reply} and
* the sender simply receives nothing. This tool removes the guess.
*
* <p>For a worker the session registry adds what it knows about that session. A worker the
@@ -787,30 +633,25 @@ public final class FleetMcp {
// --- fleet management logic (CB-108 / CB-301) --------------------------------------------
/** {@code fleet_spawn} without cwd/caller context (default resolution). */
/** {@code bridge_spawn} without cwd/caller context (default resolution). */
static McpSchema.CallToolResult spawn(SessionManager sessions, String profile) {
return spawn(sessions, profile, null, null, null, null, null, null, null);
return spawn(sessions, profile, null, null, null, null, null);
}
/**
* {@code fleet_spawn}: launch a guard-checked member for {@code profile} (blank → the default
* {@code bridge_spawn}: launch a guard-checked member for {@code profile} (blank → the default
* profile) under {@code role} (blank → {@code dev}), and return its session id + pane id. The
* member's cwd is {@code requestedCwd} if given, else the profile's config, else
* {@code callerCwd} (the primary's directory), else the daemon's.
* CB-301: the session is registered with {@code ownerTerminal} as its owner.
* CB-301-ext: {@code worktreeRequest} non-null provisions an isolated git worktree.
* CB-584: {@code sessionName}/{@code resumeSessionId} request agent session identity — a resumed
* conversation requires an explicit {@code profile} whose adapter declares
* {@link dev.ltms.fleet.peer.Capability#SESSION_RESUME}, or the spawn is refused rather than
* silently starting a cold session.
*
* <p>{@code role} and {@code profile} are independent: the role picks the contract, the profile
* picks the backend. A reviewer on the same profile as the dev it reviews is a normal spawn.
*/
static McpSchema.CallToolResult spawn(SessionManager sessions, String profile, String role,
String requestedCwd, String callerCwd,
String ownerTerminal, WorktreeRequest worktreeRequest,
String sessionName, String resumeSessionId) {
String ownerTerminal, WorktreeRequest worktreeRequest) {
MemberRole memberRole;
try {
memberRole = isBlank(role) ? MemberRole.DEV : MemberRole.parse(role);
@@ -819,17 +660,12 @@ public final class FleetMcp {
}
try {
MemberSession member = sessions.acquire(isBlank(profile) ? null : profile, memberRole,
requestedCwd, callerCwd, ownerTerminal, worktreeRequest,
isBlank(sessionName) ? null : sessionName, isBlank(resumeSessionId) ? null : resumeSessionId);
requestedCwd, callerCwd, ownerTerminal, worktreeRequest);
return text(json(memberView(member)));
} catch (GuardException e) {
return error("subscription boundary: " + e.getMessage());
} catch (PlacementException e) {
// CB-599: no candidate had capacity (maxLoad, quarantine, or all-exhausted) — distinct
// from "profile does not exist" below.
return error("no capacity: " + e.getMessage());
} catch (IllegalArgumentException e) {
return error(e.getMessage()); // unknown / no-default profile, or a refused resumeSessionId
return error(e.getMessage()); // unknown / no-default profile
} catch (PeerUnreachableException e) {
return error("spawn timed out — worker pane never reached injectable state: " + e.getMessage());
} catch (HerdrException e) {
@@ -837,7 +673,7 @@ public final class FleetMcp {
}
}
/** Build a {@link WorktreeRequest} from {@code fleet_spawn}'s optional {@code worktree}/{@code ticket} args. */
/** Build a {@link WorktreeRequest} from {@code bridge_spawn}'s optional {@code worktree}/{@code ticket} args. */
private static WorktreeRequest worktreeRequest(Map<String, Object> a) {
Object w = a.get("worktree");
if (w == null || Boolean.FALSE.equals(w)) {
@@ -865,37 +701,15 @@ public final class FleetMcp {
return null;
}
/**
* {@code fleet_profiles}: the configured worker profiles, the default, and — CB-578 stage B —
* which of them are currently quarantined (backend exhausted) and for how much longer. The
* {@code quarantined} key is present only when at least one profile is, so a fleet where nothing
* has ever been quarantined gets exactly the pre-stage-B shape.
*/
static McpSchema.CallToolResult profiles(PeerLauncher workers, QuarantineSource quarantine) {
Map<String, Object> result = new LinkedHashMap<>();
result.put("profiles", workers.profiles());
result.put("default", workers.defaultProfile() == null ? "" : workers.defaultProfile());
Map<String, Object> quarantined = new LinkedHashMap<>();
for (String profile : workers.profiles()) {
String credentialId = quarantine.credentialIdFor().apply(profile);
if (credentialId == null) {
continue;
}
quarantine.quarantine().remainingSeconds(credentialId).ifPresent(remaining -> {
Map<String, Object> row = new LinkedHashMap<>();
row.put("credentialId", credentialId);
row.put("quarantinedForSeconds", remaining);
quarantined.put(profile, row);
});
}
if (!quarantined.isEmpty()) {
result.put("quarantined", quarantined);
}
return text(json(result));
/** {@code bridge_profiles}: the configured worker profiles and the default. */
static McpSchema.CallToolResult profiles(PeerLauncher workers) {
return text(json(Map.of(
"profiles", workers.profiles(),
"default", workers.defaultProfile() == null ? "" : workers.defaultProfile())));
}
/**
* {@code fleet_list}: the whole fleet — {@code leads} and {@code workers} — each merged with
* {@code bridge_list}: the whole fleet — {@code leads} and {@code workers} — each merged with
* live herdr status. CB-519 decoupled the registry key (a host-unique id) from the herdr pane
* coordinate, so the join is on the terminal id, which both the session and the live agent carry.
*
@@ -908,40 +722,19 @@ public final class FleetMcp {
* <p>Leads are drawn from the resolver rather than from a second registry, so an address listed
* here is one that would actually resolve as a lead — see {@link CallerResolver#leads()}. The
* caller's own row is flagged {@code "self": true}: a peer needs to tell its own pane apart from
* a peer's, and the alternative is every lead calling {@code fleet_whoami} to subtract itself.
*
* <p>CB-583: the {@code capacity} rows reuse {@code quarantine} (the same {@link QuarantineSource}
* {@code fleet_profiles} reads) so the two surfaces cannot disagree about which profile is
* quarantined — see {@link #capacityView}.
* a peer's, and the alternative is every lead calling {@code bridge_whoami} to subtract itself.
*
* @param leads terminal_id → lead name, live from the resolver
* @param selfTerm the calling pane's terminal id, or blank for a caller with no pane
*/
static McpSchema.CallToolResult listFleet(PeerLauncher workers, SessionManager sessions,
Map<String, String> leads, String selfTerm) {
return listFleet(workers, sessions, null, CapacitySource.none(), new HealthCoverageSource(() -> "off"),
QuarantineSource.none(), leads, selfTerm);
return listFleet(workers, sessions, null, CapacitySource.none(), new HealthCoverageSource(() -> "off"), leads, selfTerm);
}
static McpSchema.CallToolResult listFleet(PeerLauncher workers, SessionManager sessions, MessageService messages,
CapacitySource capacity, HealthCoverageSource healthCoverage,
QuarantineSource quarantine, Map<String, String> leads, String selfTerm) {
return listFleet(workers, sessions, messages, capacity, healthCoverage, quarantine, leads, selfTerm, null);
}
/**
* As above, additionally reporting this daemon's own lead coordination id (CB-637) when one is
* configured and its channel opened. There is no peer-discovery surface yet — a lead addresses a
* peer by a coord-id it was told — so this row exists to answer the one question the operator
* cannot answer any other way: what is MY coord-id, the one a peer must use to reach me. It is
* omitted entirely when no coordinator is configured, so an ordinary fleet's output is unchanged.
*
* @param selfCoordId this daemon's coord-id, or {@code null} when lead coordination is off
*/
static McpSchema.CallToolResult listFleet(PeerLauncher workers, SessionManager sessions, MessageService messages,
CapacitySource capacity, HealthCoverageSource healthCoverage,
QuarantineSource quarantine, Map<String, String> leads, String selfTerm,
String selfCoordId) {
Map<String, String> leads, String selfTerm) {
try {
Map<String, Agent> live = workers.list().stream()
.map(Agent.class::cast)
@@ -960,12 +753,9 @@ public final class FleetMcp {
Map<String, Object> result = new LinkedHashMap<>();
result.put("leads", leadRows); result.put("members", out);
result.put("healthCoverage", healthCoverage.value().get());
if (selfCoordId != null && !selfCoordId.isBlank()) {
result.put("coordinator", Map.of("selfId", selfCoordId, "configured", true));
}
if (capacity.available()) result.put("capacity", profiles.stream()
.map(profile -> capacityView(profile, capacity.liveCount(), capacity.maxLoad(), roster, messages,
capacity.clock().getAsLong(), quarantine)).toList());
capacity.clock().getAsLong())).toList());
return text(json(result));
} catch (HerdrException e) {
return error("herdr error listing the fleet: " + e.getMessage());
@@ -973,7 +763,7 @@ public final class FleetMcp {
}
/**
* Capacity is advisory only. {@code reclaimable} says there is no bridge work, not that fleetd
* Capacity is advisory only. {@code reclaimable} says there is no bridge work, not that bridged
* may stop the member: the bridge has capacity facts but no work list, and choosing work needs
* authority it does not have. {@code idleForSeconds} is derived from monotonic nanoTime and has
* no wall-clock meaning across a daemon restart.
@@ -990,18 +780,9 @@ public final class FleetMcp {
return row;
}
/**
* CB-583: {@code free} alone cannot tell a lead "busy, will free up" from "refusing, and
* nothing changes for N seconds" — those need different decisions. So a quarantined profile
* forces {@code free} to 0, whatever its {@code maxLoad}/{@code live} say, and the row carries
* the same {@code credentialId}/{@code quarantinedForSeconds} facts {@code fleet_profiles}
* reports, reusing {@link QuarantineSource} rather than a second lookup. Both new keys are
* added only when the profile is actually quarantined, so an ordinary fleet's rows are
* byte-identical to before this change.
*/
private static Map<String, Object> capacityView(String profile, Function<String, Integer> liveCount,
Function<String, Integer> maxLoad, List<MemberSession> roster,
MessageService messages, long nowNanos, QuarantineSource quarantine) {
MessageService messages, long nowNanos) {
Integer cap = maxLoad.apply(profile);
int live = liveCount.apply(profile);
int reclaimable = (int) roster.stream().filter(s -> profile.equals(s.profile()))
@@ -1011,14 +792,6 @@ public final class FleetMcp {
Map<String, Object> row = new LinkedHashMap<>();
row.put("profile", profile); row.put("maxLoad", cap); row.put("live", live);
row.put("free", cap == null ? null : Math.max(0, cap - live)); row.put("reclaimable", reclaimable);
String credentialId = quarantine.credentialIdFor().apply(profile);
if (credentialId != null) {
quarantine.quarantine().remainingSeconds(credentialId).ifPresent(remaining -> {
row.put("free", 0);
row.put("credentialId", credentialId);
row.put("quarantinedForSeconds", remaining);
});
}
return row;
}
@@ -1027,7 +800,7 @@ public final class FleetMcp {
*
* <p>{@code status} is herdr's live view, and {@code unknown} when herdr is not tracking that
* pane as an agent — the honest answer, and the one that matters: a lead whose pane herdr cannot
* see is a lead a {@code fleet_send} cannot be typed into. It is reported rather than hidden,
* see is a lead a {@code bridge_send} cannot be typed into. It is reported rather than hidden,
* because a peer that has gone unreachable is exactly what the sender needs to know.
*/
private static Map<String, Object> leadView(String terminal, String name, Agent live,
@@ -1043,7 +816,7 @@ public final class FleetMcp {
return m;
}
/** {@code fleet_stop}: tear a worker down by its pane id. */
/** {@code bridge_stop}: tear a worker down by its pane id. */
static McpSchema.CallToolResult stop(SessionManager sessions, String paneId) {
if (isBlank(paneId)) {
return error("paneId is required");
@@ -1086,31 +859,25 @@ public final class FleetMcp {
// --- tool schemas --------------------------------------------------------------------------
private static McpSchema.Tool sendTool() {
return tool("fleet_send",
return tool("bridge_send",
"Delegate a task to a worker session. By default blocks until the worker replies and "
+ "returns its reply (or a 'still working / queued' note on timeout). Pass wait:false "
+ "for a long task to return a ticket immediately, then poll it with fleet_poll. To "
+ "answer a worker's fleet_ask, pass its turnId (with content) instead of sessionId. "
+ "To message a PEER LEAD on another daemon — possibly another host — pass its "
+ "coordId instead; that is coordination, never a task.",
+ "for a long task to return a ticket immediately, then poll it with bridge_poll. To "
+ "answer a worker's bridge_ask, pass its turnId (with content) instead of sessionId.",
objectSchema(Map.of(
"sessionId", stringProp("The worker session id (herdr terminal_id) to delegate to"),
"content", stringProp("The task/message to send to the worker (or your answer, with turnId)"),
"timeoutMs", Map.of("type", "integer", "description", "Max ms to wait for a reply (blocking mode)"),
"wait", Map.of("type", "boolean",
"description", "Block for the reply (default true); false returns a ticket to poll"),
"turnId", stringProp("When answering a worker's fleet_ask, its question turnId — "
+ "routes your answer back into the same turn (omit for a normal delegation)"),
"coordId", stringProp("A peer LEAD's coordination id — delivers content to that "
+ "lead's durable mailbox on the shared coordination broker, which works "
+ "across hosts. Mutually exclusive with sessionId and turnId. Your own "
+ "coordId is reported by fleet_list.")),
"turnId", stringProp("When answering a worker's bridge_ask, its question turnId — "
+ "routes your answer back into the same turn (omit for a normal delegation)")),
List.of("content")));
}
private static McpSchema.Tool askTool() {
// No target/session arg — the worker's identity is resolved from the connection.
return tool("fleet_ask",
return tool("bridge_ask",
"Pause your current delegated turn to ask the primary a question, blocking until it "
+ "answers — then resume the same turn with the answer. Use this when only the "
+ "primary has a decision or detail you need to continue. You do not address the "
@@ -1123,19 +890,19 @@ public final class FleetMcp {
}
private static McpSchema.Tool pollTool() {
return tool("fleet_poll",
"Check an async delegation (a fleet_send with wait:false) by its ticket: "
return tool("bridge_poll",
"Check an async delegation (a bridge_send with wait:false) by its ticket: "
+ "pending, done (with the worker's reply), or failed. When target (a worker "
+ "session id) is present instead of ticket, drain that worker's inbox of "
+ "replies delivered when no send was open.",
objectSchema(Map.of(
"ticket", stringProp("The ticket returned by fleet_send wait:false"),
"ticket", stringProp("The ticket returned by bridge_send wait:false"),
"target", stringProp("Worker session id to drain pending replies from (optional)")),
List.of()));
}
private static McpSchema.Tool ackTool() {
return tool("fleet_ack",
return tool("bridge_ack",
"Acknowledge (remove) a specific reply from a worker's inbox. Use when the primary "
+ "has processed a reply and wants to confirm it, leaving other pending replies "
+ "in the inbox for later drain.",
@@ -1146,65 +913,48 @@ public final class FleetMcp {
}
private static McpSchema.Tool spawnTool() {
return tool("fleet_spawn",
return tool("bridge_spawn",
"Spawn a new off-subscription member session. A member has two independent attributes: "
+ "role (what it is for) and profile (which backend it runs on). Pass role to pick "
+ "the contract — 'dev' implements a unit and opens its own PR, 'reviewer' reviews a "
+ "diff it did not write, 'architect' refines a ticket before anyone builds it; omit "
+ "it for 'dev'. Pass profile (from fleet_profiles) to pick the backend, or omit it "
+ "it for 'dev'. Pass profile (from bridge_profiles) to pick the backend, or omit it "
+ "for the default. The two are independent: a reviewer may run on the same profile "
+ "as the dev it reviews. The member opens your current directory by default; pass "
+ "cwd to pin a different one. Pass worktree:true (with ticket) or "
+ "worktree:<ticket-slug> to provision an isolated git worktree. Pass resumeSessionId "
+ "to relaunch onto a prior conversation instead of starting cold — this requires an "
+ "explicit profile whose backend supports it (fleet_list shows agentSessionId for "
+ "resumable members), and is refused otherwise rather than silently starting fresh. "
+ "sessionName gives the member a display name in its own UI when the backend supports "
+ "one. Returns the member's sessionId (use with fleet_send) and paneId (use with "
+ "fleet_stop).",
+ "worktree:<ticket-slug> to provision an isolated git worktree. Returns the member's "
+ "sessionId (use with bridge_send) and paneId (use with bridge_stop).",
objectSchema(Map.of(
"role", stringProp("What the member is for: architect, dev or reviewer (default dev)"),
"profile", stringProp("Which backend to run it on (omit for the default profile)"),
"cwd", stringProp("Working directory for the member (omit to inherit yours)"),
"worktree", Map.of("type", "string", "description", "'true' or a ticket slug — requests an isolated git worktree"),
"ticket", stringProp("Ticket slug when worktree:true"),
"sessionName", stringProp("Logical display name for the member's own session, when its backend supports one"),
"resumeSessionId", stringProp("A prior member's agentSessionId (from fleet_list) to resume — requires an explicit profile that supports it")),
"ticket", stringProp("Ticket slug when worktree:true")),
List.of()));
}
private static McpSchema.Tool profilesTool() {
return tool("fleet_profiles",
"List the configured worker profiles (backends) and which one fleet_spawn uses by "
+ "default. A 'quarantined' map is present when a backend-exhausted refusal put "
+ "a profile's credential on cooldown — fleet_spawn onto it is refused until "
+ "quarantinedForSeconds elapses; a profile sharing that credential is listed too.",
return tool("bridge_profiles",
"List the configured worker profiles (backends) and which one bridge_spawn uses by default.",
objectSchema(Map.of(), List.of()));
}
private static McpSchema.Tool listTool() {
return tool("fleet_list",
return tool("bridge_list",
"List the whole fleet the bridge tracks, in two parts. 'leads' are your PEERS — other "
+ "orchestrators, each with its sessionId (the address to fleet_send to), "
+ "orchestrators, each with its sessionId (the address to bridge_send to), "
+ "name, live status, and 'self': true on your own row; this is how you "
+ "discover a peer lead without being told its address. 'members' are the "
+ "sessions delegated to — each with sessionId, paneId, role (architect/dev/"
+ "reviewer), profile (the backend it runs on), state, optional "
+ "worktree/branch/owner/agentSessionId (the id to pass as fleet_spawn's "
+ "resumeSessionId to relaunch onto that same conversation, when the backend "
+ "supports it), and live herdr status. An empty 'members' "
+ "means no members are spawned; it says nothing about peers. When capacity "
+ "facts are configured, a 'capacity' row per profile also reports free: 0 for "
+ "a quarantined profile's credential (see fleet_profiles), whatever its "
+ "maxLoad/live — with credentialId and quarantinedForSeconds naming the "
+ "quarantine, so 'free: 0, busy' can be told apart from 'free: 0, refusing "
+ "for N seconds'.",
+ "worktree/branch/owner, and live herdr status. An empty 'members' "
+ "means no members are spawned; it says nothing about peers.",
objectSchema(Map.of(), List.of()));
}
private static McpSchema.Tool stopTool() {
return tool("fleet_stop",
"Tear down a worker session by its paneId (from fleet_spawn or fleet_list).",
return tool("bridge_stop",
"Tear down a worker session by its paneId (from bridge_spawn or bridge_list).",
objectSchema(Map.of(
"paneId", stringProp("The worker's paneId to stop")),
List.of("paneId")));
@@ -1212,9 +962,9 @@ public final class FleetMcp {
private static McpSchema.Tool replyTool() {
// No session/target arg — the caller's identity is resolved from the connection.
return tool("fleet_reply",
return tool("bridge_reply",
"Return your structured answer for a message you were sent, resolving the sender's "
+ "blocked fleet_send. A worker MUST end every delegated turn with exactly "
+ "blocked bridge_send. A worker MUST end every delegated turn with exactly "
+ "one of these. A lead uses it only to answer another lead that messaged "
+ "it — never to answer a worker, whose turn it is not.",
objectSchema(Map.of(
@@ -1223,7 +973,7 @@ public final class FleetMcp {
}
private static McpSchema.Tool statusTool() {
return tool("fleet_status",
return tool("bridge_status",
"Get the live lifecycle status (idle/working/blocked/unknown) of a worker session.",
objectSchema(Map.of(
"sessionId", stringProp("The worker session id to query")),
@@ -1231,14 +981,14 @@ public final class FleetMcp {
}
private static McpSchema.Tool whoamiTool() {
return tool("fleet_whoami",
return tool("bridge_whoami",
"Report who YOU are on the bridge — your role is resolved from your connection "
+ "(unforgeable), never from anything you claim. Returns role 'primary' (you "
+ "orchestrate: spawn/send/stop; reply ONLY to answer a peer lead that "
+ "messaged you, never to answer a worker), 'architect' (you delegate turns "
+ "and reply/ask as your own pane, but cannot spawn/stop/drain), or 'worker' "
+ "(you were delegated to: you must end every turn with exactly one "
+ "fleet_reply, and cannot spawn or send), plus 'leader'/'architect' naming "
+ "bridge_reply, and cannot spawn or send), plus 'leader'/'architect' naming "
+ "which one you are, your own sessionId, and profile/worktree/branch when "
+ "you are a worker. Call this first when following role-conditional "
+ "instructions rather than guessing.",
@@ -1,6 +1,6 @@
package dev.ltms.fleet.mcp;
package dev.ltms.bridged.mcp;
import dev.ltms.fleet.herdr.PaneLocator;
import dev.ltms.bridged.herdr.PaneLocator;
/**
* Resolves <em>who is calling</em> an MCP tool from the connection alone — the anti-spoofing
@@ -10,7 +10,7 @@ import dev.ltms.fleet.herdr.PaneLocator;
*
* <p>Both sources are authoritative and unforgeable: the OS reports the real connecting PID, and
* herdr owns the PID→pane mapping. A worker cannot claim to be another worker, nor the primary.
* Single-host only (the herd shares the {@code fleetd} host); the token path is the split-host
* Single-host only (the herd shares the {@code bridged} host); the token path is the split-host
* fallback.
*/
public final class ConnectionIdentity {
@@ -1,4 +1,4 @@
package dev.ltms.fleet.mcp;
package dev.ltms.bridged.mcp;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@@ -1,4 +1,4 @@
package dev.ltms.fleet.mcp;
package dev.ltms.bridged.mcp;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@@ -1,4 +1,4 @@
package dev.ltms.fleet.mcp;
package dev.ltms.bridged.mcp;
/**
* Resolves the OS PID that owns a loopback TCP source port — the OS half of connection-based MCP
@@ -1,4 +1,4 @@
package dev.ltms.fleet.mcp;
package dev.ltms.bridged.mcp;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@@ -11,7 +11,7 @@ import java.util.concurrent.atomic.AtomicReference;
* Single-slot, thread-safe registry for the primary's herdr {@code terminal_id}.
*
* <p>Populated from the caller terminal of orchestration-side MCP tools
* ({@code fleet_send}, {@code fleet_spawn}) — tools that only the primary calls.
* ({@code bridge_send}, {@code bridge_spawn}) — tools that only the primary calls.
* A pinned terminal (from config) seeds the registry at construction and makes
* subsequent {@link #record(String)} calls no-ops.
*
@@ -29,7 +29,7 @@ public final class PrimaryRegistry {
/**
* CB-532: worker terminal → the lead that delegated to it. The single slot above answers "who is
* THE primary", a question with no correct answer once two leads orchestrate the same fleet:
* whichever called {@code fleet_send} first captured every nudge, including nudges for the
* whichever called {@code bridge_send} first captured every nudge, including nudges for the
* other lead's delegations. This map answers the question that actually matters — "who is
* waiting on THIS worker" — and is what lets {@code primary.terminal} be retired.
*/
@@ -71,7 +71,7 @@ public final class PrimaryRegistry {
*
* <p>Called from the {@code MessageService} accepted-delivery hook — only after a send has won
* the session's send lock and queued delivery — where both halves are known (CB-548). It is
* deliberately <em>not</em> called at {@code fleet_send} request time: a concurrent sender that
* deliberately <em>not</em> called at {@code bridge_send} request time: a concurrent sender that
* times out {@code BUSY} must not steal a live delegation's reply routing without ever owning
* the turn. Last writer wins — if a second lead's later send is accepted, replies follow the
* lead that most recently delegated to it, which is the one waiting.
@@ -1,4 +1,4 @@
package dev.ltms.fleet.mcp;
package dev.ltms.bridged.mcp;
/**
* Resolves a process's current working directory from its PID — the OS half of CB-112's
@@ -0,0 +1,325 @@
package dev.ltms.bridged.member;
import dev.ltms.bridged.config.BridgedConfig;
import dev.ltms.bridged.guard.SubscriptionGuard;
import dev.ltms.bridged.herdr.Agent;
import dev.ltms.bridged.herdr.AgentControl;
import dev.ltms.bridged.herdr.WorkspaceControl;
import dev.ltms.bridged.peer.Capability;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.EnumSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.UUID;
import java.util.function.Function;
import java.util.function.LongSupplier;
import java.util.function.Supplier;
/**
* The {@link HerdrPeerLauncher} adapter for <strong>Claude Code</strong> — the safe path from a
* delegation request to a running off-subscription Claude.
*
* <p>Everything transport-related (tab/pane placement, the CB-306 spawn-readiness gate, unique
* naming, CB-117 orphan reap, teardown, listing, cwd resolution) lives in the base. This class
* supplies only the two Claude-specific seams:
* <ul>
* <li>the {@code claude} name prefix (so reap matches {@code claude-*} panes, never another
* adapter's), and</li>
* <li>{@link #buildLaunch}, which encodes the subscription boundary: build the worker env with
* {@code ANTHROPIC_BASE_URL}, assert that host is on the allowlist <em>before</em> touching
* herdr, and mount the bridge MCP + reply charter as inline launch flags. A worker's base_url
* lives in the env map handed to herdr and nowhere else; {@code bridged}'s own environment is
* never mutated, and nothing is written to the worker's profile.</li>
* </ul>
*/
public final class ClaudeCodeLauncher extends HerdrPeerLauncher {
/** Label prefix for this adapter's herdr agent names (drives naming + orphan reap). */
private static final String NAME_PREFIX = "claude";
private static final Logger log = LoggerFactory.getLogger(ClaudeCodeLauncher.class);
private final SubscriptionGuard guard;
/**
* Production constructor — disables the spawn-ready gate ({@code spawnReadyTimeoutMs == 0}) so
* existing deployments and tests keep the legacy non-blocking spawn semantics.
*/
public ClaudeCodeLauncher(AgentControl agents, WorkspaceControl spaces, SubscriptionGuard guard,
Map<String, BridgedConfig.Profile> profiles, String defaultProfile,
Function<String, String> env) {
this(agents, spaces, guard, profiles, defaultProfile, env, 0,
System::currentTimeMillis, () -> sleepUninterruptibly(300));
}
/**
* Production constructor with spawn-ready gate enabled. The gate polls {@code agents.status()}
* until the pane reports an injectable state or {@code spawnReadyTimeoutMs} elapses.
*/
public ClaudeCodeLauncher(AgentControl agents, WorkspaceControl spaces, SubscriptionGuard guard,
Map<String, BridgedConfig.Profile> profiles, String defaultProfile,
Function<String, String> env,
long spawnReadyTimeoutMs, long spawnReadyPollMs) {
this(agents, spaces, guard, profiles, defaultProfile, env,
spawnReadyTimeoutMs, spawnReadyPollMs, null);
}
/**
* Production constructor carrying the fleet-wide tab-label template (CB-557). The template comes
* from {@code fleet.tabLabel}, which a profile cannot know because it names the member's
* <em>role</em>; a profile may still override it with its own {@code tabLabel}.
*/
public ClaudeCodeLauncher(AgentControl agents, WorkspaceControl spaces, SubscriptionGuard guard,
Map<String, BridgedConfig.Profile> profiles, String defaultProfile,
Function<String, String> env,
long spawnReadyTimeoutMs, long spawnReadyPollMs,
Supplier<BridgedConfig.Fleet> fleet) {
this(agents, spaces, guard, profiles, defaultProfile, env,
spawnReadyTimeoutMs,
System::currentTimeMillis, () -> sleepUninterruptibly(spawnReadyPollMs),
fleet);
}
/**
* Full testability constructor. Every injectable collaborator is explicit so unit tests supply
* fakes for the clock ({@code nowMillis}) and poll-loop wait ({@code sleeper}). The
* {@code sleeper} is never called when the gate is disabled ({@code spawnReadyTimeoutMs == 0}).
*
* @param agents herdr agent control (start, status, close)
* @param spaces workspace / tab control (ensure, create, close)
* @param guard subscription-boundary guard (checked before spawning)
* @param profiles configured worker profiles
* @param defaultProfile profile a no-argument spawn uses (nullable)
* @param env host env lookup (injectable for tests)
* @param spawnReadyTimeoutMs max ms to wait for injectable state (0 disables the gate)
* @param nowMillis monotonic clock source (e.g. {@code System::currentTimeMillis})
* @param sleeper sleep/wait hook (e.g. {@code () -> Thread.sleep(pollMs)}); it
* already encodes the poll interval, so the 8th positional argument
* (poll ms) is accepted for API symmetry but otherwise unused here
*/
public ClaudeCodeLauncher(AgentControl agents, WorkspaceControl spaces, SubscriptionGuard guard,
Map<String, BridgedConfig.Profile> profiles, String defaultProfile,
Function<String, String> env,
long spawnReadyTimeoutMs,
LongSupplier nowMillis, Runnable sleeper) {
this(agents, spaces, guard, profiles, defaultProfile, env,
spawnReadyTimeoutMs, nowMillis, sleeper, null);
}
/**
* Full testability constructor, plus the fleet-wide tab-label template (CB-557).
*
* @param fleet live fleet config, read once for each spawn
*/
public ClaudeCodeLauncher(AgentControl agents, WorkspaceControl spaces, SubscriptionGuard guard,
Map<String, BridgedConfig.Profile> profiles, String defaultProfile,
Function<String, String> env,
long spawnReadyTimeoutMs,
LongSupplier nowMillis, Runnable sleeper,
Supplier<BridgedConfig.Fleet> fleet) {
super(NAME_PREFIX, agents, spaces, profiles, defaultProfile, env,
spawnReadyTimeoutMs, nowMillis, sleeper, fleet);
this.guard = guard;
}
/**
* {@inheritDoc}
*
* <p>The spawn sequence encodes the subscription boundary: assert the profile's base_url is on
* the allowlist <em>before</em> any herdr call, then build the worker env with
* {@code ANTHROPIC_*}, the parity-neutral git-forge grant, and the bridge MCP + reply charter
* mounted as inline launch flags. When the request carries session identity (CB-547a) it is
* applied here — see {@link #applySessionIdentity}.
*/
@Override
protected Launch buildLaunch(BridgedConfig.Profile cfg, LaunchSpec spec) {
// CB-539: a profile may deliberately opt into the subscription (subscription: true) when no
// off-subscription endpoint exists for it — e.g. `sonnet` on `ccs`. That profile gets no
// ANTHROPIC_BASE_URL/AUTH_TOKEN (there is nothing to point them at) and the guard's base_url
// requirement is skipped FOR IT ONLY. Every other profile keeps the hard boundary below.
boolean onSubscription = cfg.isSubscription();
String baseUrl = cfg.baseUrl();
if (onSubscription) {
// NO SILENT CONTRADICTION: subscription:true + a baseUrl state opposite intents; refuse
// loudly rather than pick a winner.
if (baseUrl != null && !baseUrl.isBlank()) {
throw new IllegalStateException("profile '" + cfg.profile()
+ "' sets both subscription: true and a baseUrl ('" + baseUrl + "') — the two "
+ "are contradictory: a subscription profile must not point at an endpoint. "
+ "Drop baseUrl, or drop subscription: true.");
}
// Visible without anyone going looking for it: this worker bills the subscription.
log.warn("spawning profile '{}' on the Claude subscription (subscription: true) — this "
+ "worker WILL bill the operator's subscription", cfg.profile());
} else {
guard.assertWorker(baseUrl); // hard stop before we spawn anything
}
Map<String, String> workerEnv = baseEnv(cfg);
if (onSubscription) {
// CB-542 belt-and-braces: on the subscription path no guard vets these two keys, and the
// profile's env: is layered in by baseEnv — so strip any that rode in there. Config load
// already rejects this (loudly, naming the profile); this makes the boundary hold even
// for a profile built in code that never passed through that validation.
workerEnv.remove("ANTHROPIC_BASE_URL");
workerEnv.remove("ANTHROPIC_AUTH_TOKEN");
} else {
workerEnv.put("ANTHROPIC_BASE_URL", baseUrl);
putIfPresent(workerEnv, "ANTHROPIC_AUTH_TOKEN", env.apply(cfg.tokenEnv()));
}
putIfPresent(workerEnv, "ANTHROPIC_MODEL", cfg.model());
putIfPresent(workerEnv, "CLAUDE_CONFIG_DIR", cfg.configDir());
applyGitToken(workerEnv, cfg);
// CB-547a: Claude Code can MINT its own session id, so bridged chooses it — a fresh spawn
// gets a UUID we pass as --session-id and return from agentSessionId(), so the resume
// handle is known BEFORE the agent has written anything; a resume spawn adopts its prior
// id via -r and passes no --session-id (the two conflict). Both are injected before the
// model flag so --model keeps outranking the operator's own argv.
// mutableArgv: argvWithBridge may hand back the profile's own (immutable) List.of when it
// has neither MCP nor a charter — session flags must be added into a list we own.
List<String> argv = mutableArgv(argvWithBridge(cfg, spec.charter()));
String agentSessionId = applySessionIdentity(argv, spec.sessionName(), spec.resumeSessionId());
return new Launch(workerEnv, argvWithModel(argv, cfg), agentSessionId);
}
/**
* Add the Claude-specific session-identity flags to {@code argv} and return the peer's OWN
* session id — the resume handle. A resume request passes the prior id via {@code -r} and
* returns that id; a fresh named session mints a new UUID, passes it via {@code --session-id},
* and returns the mint. The bridge's logical name rides along as {@code -n} when present. When
* <em>no</em> identity is requested (sessionName and resumeSessionId both blank) this adds
* nothing and returns {@code null}, keeping the legacy no-identity launch byte-identical.
*/
private static String applySessionIdentity(List<String> argv, String sessionName, String resumeSessionId) {
boolean resuming = resumeSessionId != null && !resumeSessionId.isBlank();
boolean named = sessionName != null && !sessionName.isBlank();
if (!resuming && !named) {
return null; // no identity requested — keep the legacy launch byte-identical
}
if (named) {
argv.add("-n");
argv.add(sessionName);
}
if (resuming) {
argv.add("-r");
argv.add(resumeSessionId);
return resumeSessionId;
}
String minted = UUID.randomUUID().toString();
argv.add("--session-id");
argv.add(minted);
return minted;
}
/**
* The launch argv, plus an inline {@code --mcp-config} when {@code worker.mcpUrl} is set and
* {@code --append-system-prompt} when the base composed a charter. Neither touches the profile's
* config; both are pure command-line flags. This inline-flag mount is Claude Code specific —
* other adapters mount MCP and instructions their own way.
*/
private List<String> argvWithBridge(BridgedConfig.Profile cfg, String charter) {
if (!cfg.hasMcp() && charter == null) {
return cfg.argv();
}
List<String> argv = mutableArgv(cfg.argv());
if (cfg.hasMcp()) {
String mcpJson = "{\"mcpServers\":{\"bridge\":{\"type\":\"http\",\"url\":\""
+ cfg.mcpUrl() + "\"}}}";
argv.add("--mcp-config");
argv.add(mcpJson);
}
if (charter != null) {
argv.add("--append-system-prompt");
argv.add(charter);
}
return argv;
}
/**
* Pin the model on the command line as well as in {@code ANTHROPIC_MODEL} (CB-533).
*
* <p>The env var alone is not a reliable pin for this adapter, because the argv is usually a
* launcher rather than {@code claude} itself — {@code ["ccs", "<profile>"]} — and {@code ccs}
* exports its profile's own model family ({@code ANTHROPIC_MODEL}, {@code DEFAULT_OPUS/SONNET/
* HAIKU}, {@code CLAUDE_CODE_SUBAGENT_MODEL}) over whatever it inherited. A worker profile that
* set {@code model:} therefore got silently overruled by its own launcher. Claude Code's
* {@code --model} flag outranks the environment, and {@code ccs <profile> [claude-args...]}
* passes trailing arguments through, so the flag survives the wrapper.
*
* <p>Appended last so it also outranks anything in the operator's own {@code argv}. Profiles
* that deliberately leave {@code model:} unset (letting {@code ccs} own model selection, as
* {@code gx10} does) are untouched — this adds nothing when there is nothing to add. This is
* the {@code kind: claude} counterpart of the opencode adapter's {@code -m provider/model}.
*/
private static List<String> argvWithModel(List<String> argv, BridgedConfig.Profile cfg) {
if (cfg.model() == null || cfg.model().isBlank()) {
return argv;
}
List<String> withModel = mutableArgv(argv);
withModel.add("--model");
withModel.add(cfg.model());
return withModel;
}
// --- Agent-returning convenience spawns (used by callers/tests that want the herdr Agent) ---
/** Spawn a worker for the default profile in the resolved default cwd. */
public Agent spawn() {
return spawnInternal(null, null, null);
}
/** Spawn a worker for a named profile (null → default) in the resolved default cwd. */
public Agent spawn(String profileName) {
return spawnInternal(profileName, null, null);
}
/** Spawn a worker for a named profile with an explicit requested/caller cwd (CB-112). */
public Agent spawn(String profileName, String requestedCwd, String callerCwd) {
return spawnInternal(profileName, requestedCwd, callerCwd);
}
// --- capabilities --------------------------------------------------------------------------
@Override
public Set<Capability> capabilities() {
Set<Capability> caps = EnumSet.of(Capability.MID_TURN_ASK, Capability.WORKTREE,
Capability.CONTEXT_RESET, Capability.ORPHAN_REAP,
Capability.SESSION_NAME, Capability.SESSION_RESUME);
if (hasGitTokenProfile()) {
caps.add(Capability.SELF_PR);
}
return Set.copyOf(caps);
}
@Override
public boolean clearContext(String id) {
String target = agentTarget(id);
if (target == null) {
return false;
}
// This deliberately bypasses Injector: /clear is housekeeping, not a delegated turn.
agents().send(target, "/clear");
return true;
}
/** Whether any configured profile opts into a git-forge token (required for {@link Capability#SELF_PR}). */
private boolean hasGitTokenProfile() {
return profileConfigs().stream().anyMatch(BridgedConfig.Profile::hasGitToken);
}
// --- CB-117 reap predicate (Claude prefix), kept for direct unit testing -------------------
/**
* Whether {@code name} is a Claude Code bridge worker started by a <em>different</em> process
* than {@code currentNonce}. A thin {@code claude}-prefix binding of
* {@link HerdrPeerLauncher#isForeignWorker(String, String, String)}.
*/
static boolean isForeignWorker(String name, String currentNonce) {
return HerdrPeerLauncher.isForeignWorker(NAME_PREFIX, name, currentNonce);
}
}
@@ -1,21 +1,18 @@
package dev.ltms.fleet.member;
package dev.ltms.bridged.member;
import dev.ltms.fleet.config.FleetConfig;
import dev.ltms.fleet.herdr.Agent;
import dev.ltms.fleet.herdr.HerdrClient;
import dev.ltms.fleet.herdr.HerdrException;
import dev.ltms.fleet.peer.Capability;
import dev.ltms.fleet.peer.MemberRole;
import dev.ltms.fleet.peer.PeerHandle;
import dev.ltms.fleet.peer.PeerLauncher;
import dev.ltms.fleet.peer.PeerUnreachableException;
import dev.ltms.fleet.peer.SpawnRequest;
import dev.ltms.fleet.placement.BackendQuarantine;
import dev.ltms.fleet.placement.PlacementCandidate;
import dev.ltms.fleet.placement.PlacementContext;
import dev.ltms.fleet.placement.PlacementException;
import dev.ltms.fleet.placement.PlacementPolicies;
import dev.ltms.fleet.placement.PlacementPolicy;
import dev.ltms.bridged.config.BridgedConfig;
import dev.ltms.bridged.herdr.Agent;
import dev.ltms.bridged.peer.Capability;
import dev.ltms.bridged.peer.MemberRole;
import dev.ltms.bridged.peer.PeerHandle;
import dev.ltms.bridged.peer.PeerLauncher;
import dev.ltms.bridged.peer.PeerUnreachableException;
import dev.ltms.bridged.peer.SpawnRequest;
import dev.ltms.bridged.placement.PlacementCandidate;
import dev.ltms.bridged.placement.PlacementContext;
import dev.ltms.bridged.placement.PlacementException;
import dev.ltms.bridged.placement.PlacementPolicies;
import dev.ltms.bridged.placement.PlacementPolicy;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@@ -23,16 +20,13 @@ import java.util.ArrayList;
import java.util.Collections;
import java.util.EnumSet;
import java.util.HashSet;
import java.util.IdentityHashMap;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import java.util.function.Function;
import java.util.function.Supplier;
import java.util.stream.Collectors;
/**
* The {@link PeerLauncher} the core actually holds when more than one adapter is configured — a thin
@@ -47,17 +41,12 @@ import java.util.stream.Collectors;
* the single adapter that declares it. Profiles partition cleanly across adapters: the
* constructor rejects a name claimed by two.</li>
* <li><strong>By pane id</strong> — {@link #stop} routes to the adapter that spawned that pane
* (recorded at spawn time). A pane the composite never spawned, or one whose record was lost
* to a daemon restart (CB-185 blocker 1 — {@link #spawnedBy} is in-memory only), can use the
* fallback route in a one-daemon fleet. With more than one herdr daemon, {@link #probeOwner}
* asks each configured daemon which one actually knows the pane: exactly one match routes
* (and caches); no match is treated as already-gone; more than one match is a genuine
* ambiguity (pane ids are per-daemon counters, so two daemons really can both hold, say,
* {@code w1:p1}) and stop refuses rather than closing a pane on an arbitrary herdr daemon.</li>
* (recorded at spawn time). A pane the composite never spawned (only real for a caller that
* hand-rolls an id) falls back to the first delegate; teardown is pane-id addressed and
* tab cleanup is single-occupant guarded, so it is safe either way.</li>
* <li><strong>Fleet-wide</strong> — {@link #reapOrphanWorkers} and {@link #capabilities} fan out
* and combine. {@link #list} is deduplicated by (owning daemon, pane id): delegates that share
* one herdr connection report the same global agent set, but two daemons can each hold a pane
* called {@code w1:p1}, so the daemon has to be part of the key.</li>
* and combine. {@link #list} is deduplicated by pane id because every herdr-backed delegate
* shares one herdr connection and so reports the same global agent set.</li>
* </ul>
*
* <p>CB-518: an unqualified spawn is routed through a {@link PlacementPolicy}. The default
@@ -86,18 +75,15 @@ public final class CompositePeerLauncher implements PeerLauncher {
* this way is the set of adapters ({@link #byProfile}), because a new backend needs a launcher
* and launchers are built once; {@code ConfigRef} classifies that as deferred and says so.
*/
private final Supplier<Map<String, FleetConfig.Profile>> profileConfigs;
private final Supplier<Map<String, BridgedConfig.Profile>> profileConfigs;
private final Supplier<PlacementPolicy> placementPolicy;
/** CB-578 stage B: credential cooldown, checked before an explicit spawn and filtered into placement. */
private final BackendQuarantine quarantine;
/**
* CB-557: the role pools an unqualified spawn draws its candidates from. A supplier that yields
* {@code null}, and an empty pool for a role, both fall back to every configured profile — the
* pre-CB-557 behaviour.
*/
private final Supplier<FleetConfig.Fleet> fleet;
private final Supplier<BridgedConfig.Fleet> fleet;
/**
* Backward-compatible constructor: fixed placement, no live-counting. Use this for tests and
@@ -113,10 +99,7 @@ public final class CompositePeerLauncher implements PeerLauncher {
}
/**
* Production constructor with a placement policy and live-worker counter. Quarantine (CB-578
* stage B) is off for this constructor — {@link BackendQuarantine#none()} — since it predates
* the feature and existing callers of this exact overload never exercised it; use the 7-arg
* overload below to wire a real {@link BackendQuarantine}.
* Production constructor with a placement policy and live-worker counter.
*
* @param delegates one adapter per configured peer kind; must be non-empty and declare
* disjoint profile-name sets
@@ -127,83 +110,59 @@ public final class CompositePeerLauncher implements PeerLauncher {
*/
public CompositePeerLauncher(List<HerdrPeerLauncher> delegates,
String defaultProfile,
Map<String, FleetConfig.Profile> profileConfigs,
Map<String, BridgedConfig.Profile> profileConfigs,
PlacementPolicy placementPolicy,
Function<String, Integer> liveCount) {
this(delegates, defaultProfile, profileConfigs, placementPolicy, liveCount, null, BackendQuarantine.none());
this(delegates, defaultProfile, profileConfigs, placementPolicy, liveCount, null);
}
/**
* Production constructor with role pools (CB-557). An unqualified spawn draws its candidates from
* {@code fleet.<role>} instead of from every configured profile, so a reviewer is placed on a
* reviewer backend and never on, say, the architect-only one. Quarantine is off for this
* constructor too, for the same reason as the 5-arg overload above.
* reviewer backend and never on, say, the architect-only one.
*
* @param fleet the configured role pools; {@code null} ⇒ every profile is a candidate for every
* role, which is the pre-CB-557 behaviour
*/
public CompositePeerLauncher(List<HerdrPeerLauncher> delegates,
String defaultProfile,
Map<String, FleetConfig.Profile> profileConfigs,
Map<String, BridgedConfig.Profile> profileConfigs,
PlacementPolicy placementPolicy,
Function<String, Integer> liveCount,
FleetConfig.Fleet fleet) {
this(delegates, defaultProfile, profileConfigs, placementPolicy, liveCount, fleet, BackendQuarantine.none());
}
/**
* Production constructor with role pools and quarantine (CB-578 stage B). The full-featured
* non-reloading form; {@link #CompositePeerLauncher(List, String, Supplier, Function, BackendQuarantine)}
* is what {@code Fleetd.main} actually wires up.
*
* @param quarantine required — pass {@link BackendQuarantine#none()} for a caller that does not
* want the feature, never a defaulting overload (CB-578 stage B's own rule).
*/
public CompositePeerLauncher(List<HerdrPeerLauncher> delegates,
String defaultProfile,
Map<String, FleetConfig.Profile> profileConfigs,
PlacementPolicy placementPolicy,
Function<String, Integer> liveCount,
FleetConfig.Fleet fleet,
BackendQuarantine quarantine) {
BridgedConfig.Fleet fleet) {
// LinkedHashMap, not Map.copyOf: candidates() promises definition order and the weighted
// policy breaks exact-weight ties on it, so a salted iteration order would make placement
// differ from one JVM run to the next.
this(delegates, defaultProfile,
constant(Collections.unmodifiableMap(new LinkedHashMap<>(profileConfigs))),
constant(placementPolicy), liveCount, constant(fleet), quarantine);
constant(placementPolicy), liveCount, constant(fleet));
}
/**
* Production constructor that re-reads its placement inputs per spawn (CB-559), so a config
* reload retargets the next member without a restart.
*
* @param config the live configuration — read at every spawn, never captured
* @param quarantine required — CB-578 stage B; pass {@link BackendQuarantine#none()} to opt out
* @param config the live configuration — read at every spawn, never captured
*/
public CompositePeerLauncher(List<HerdrPeerLauncher> delegates,
String defaultProfile,
Supplier<FleetConfig> config,
Function<String, Integer> liveCount,
BackendQuarantine quarantine) {
Supplier<BridgedConfig> config,
Function<String, Integer> liveCount) {
this(delegates, defaultProfile,
() -> config.get().profiles(),
() -> PlacementPolicies.fromName(config.get().placement()),
liveCount,
() -> config.get().fleet(),
quarantine);
() -> config.get().fleet());
}
/** The all-suppliers form every other constructor funnels into. */
private CompositePeerLauncher(List<HerdrPeerLauncher> delegates,
String defaultProfile,
Supplier<Map<String, FleetConfig.Profile>> profileConfigs,
Supplier<Map<String, BridgedConfig.Profile>> profileConfigs,
Supplier<PlacementPolicy> placementPolicy,
Function<String, Integer> liveCount,
Supplier<FleetConfig.Fleet> fleet,
BackendQuarantine quarantine) {
Supplier<BridgedConfig.Fleet> fleet) {
this.fleet = fleet;
this.quarantine = Objects.requireNonNull(quarantine, "quarantine");
if (delegates.isEmpty()) {
throw new IllegalArgumentException("at least one peer adapter must be configured");
}
@@ -222,7 +181,7 @@ public final class CompositePeerLauncher implements PeerLauncher {
}
}
}
// Order-preserving for the same reason, and because profiles() is user-visible (fleet_profiles).
// Order-preserving for the same reason, and because profiles() is user-visible (bridge_profiles).
this.byProfile = Collections.unmodifiableMap(index);
}
@@ -237,8 +196,8 @@ public final class CompositePeerLauncher implements PeerLauncher {
* <p>Read fresh on every call so a reload is visible; a caller that needs two consistent reads
* takes one local, as {@link #poolFor} does.
*/
private Map<String, FleetConfig.Profile> profiles0() {
Map<String, FleetConfig.Profile> m = profileConfigs.get();
private Map<String, BridgedConfig.Profile> profiles0() {
Map<String, BridgedConfig.Profile> m = profileConfigs.get();
return m == null ? Map.of() : m;
}
@@ -262,11 +221,10 @@ public final class CompositePeerLauncher implements PeerLauncher {
String requestedProfile = req.profileName();
if (requestedProfile != null && !requestedProfile.isBlank()) {
// An explicit profile bypasses the placement policy, but not the capacity cap: maxLoad
// is documented as an unconditional limit on this profile (FleetConfig.Profile), and
// is documented as an unconditional limit on this profile (BridgedConfig.Profile), and
// the charter makes explicit-profile spawns the normal path — so skipping the check
// here would leave the cap dead config in real operation.
HerdrPeerLauncher d = route(requestedProfile);
enforceNotQuarantined(requestedProfile);
enforceMaxLoad(requestedProfile);
PeerHandle handle = d.spawn(req);
spawnedBy.put(handle.id(), d);
@@ -275,15 +233,12 @@ public final class CompositePeerLauncher implements PeerLauncher {
// CB-557: an unqualified spawn is placed inside the pool of the role it asked for, not across
// the whole profile list. An EXPLICIT profile (above) is left alone on purpose — it is the
// operator overriding, and refusing it would break `fleet_spawn{profile:"opus"}`, which
// operator overriding, and refusing it would break `bridge_spawn{profile:"opus"}`, which
// carries no role and so would be judged against the dev pool it was never meant for.
List<PlacementCandidate> candidates = candidates(req.role());
String roleDefault = defaultProfileFor(req.role());
Set<String> unreachable = new HashSet<>();
// CB-578 stage B: computed once up front — a quarantine's expiry cannot pass within one spawn
// call, so re-deriving it per retry would only cost work, never change the answer.
Set<String> quarantined = quarantinedProfiles(candidates);
PlacementContext ctx = new PlacementContext(roleDefault, candidates, liveCount, unreachable, quarantined);
PlacementContext ctx = new PlacementContext(roleDefault, candidates, liveCount, unreachable);
int maxAttempts = candidates.isEmpty() ? 1 : candidates.size();
for (int attempt = 0; attempt < maxAttempts; attempt++) {
@@ -313,7 +268,7 @@ public final class CompositePeerLauncher implements PeerLauncher {
chosen.profile(), e.getMessage());
unreachable.add(chosen.profile());
// Update the context for the next selection so the policy excludes this profile.
ctx = new PlacementContext(roleDefault, candidates, liveCount, unreachable, quarantined);
ctx = new PlacementContext(roleDefault, candidates, liveCount, unreachable);
}
}
@@ -325,7 +280,7 @@ public final class CompositePeerLauncher implements PeerLauncher {
/**
* Refuse an explicit-profile spawn when the profile is at its {@code maxLoad} cap.
*
* <p>maxLoad is a documented, unconditional capacity limit (see {@code FleetConfig.Profile#maxLoad}),
* <p>maxLoad is a documented, unconditional capacity limit (see {@code BridgedConfig.Profile#maxLoad}),
* and the charter makes explicit-profile spawns the normal path — so enforcing it only in placement
* ({@code PlacementPolicyUtil}, package-private, hence not linked) would leave the cap dead config
* on every call that names a profile. Same rule as placement: {@code live >= cap} is at capacity.
@@ -343,49 +298,10 @@ public final class CompositePeerLauncher implements PeerLauncher {
* @param profile the profile the caller explicitly named
* @throws PlacementException when the profile is at capacity
*/
/**
* Refuse an explicit-profile spawn whose credential is quarantined (CB-578 stage B): a prior
* {@code BACKEND_EXHAUSTED} classification on this profile, or on another profile sharing its
* {@code credentialId}, is still on cooldown.
*
* <p>Checked before {@link #enforceMaxLoad}, and for the same reason that check exists: an
* explicit profile bypasses the placement policy's filtering entirely, so without this the cap
* (there, quarantine here) would be dead config on the very path the charter calls normal.
* Deliberately no fallback to another profile, matching {@link #enforceMaxLoad}'s own reasoning —
* the caller named this profile for a cost/model reason.
*
* @throws PlacementException naming the profile, its credential, and the remaining cooldown
*/
private void enforceNotQuarantined(String profile) {
String credentialId = credentialIdFor(profile);
quarantine.remainingSeconds(credentialId).ifPresent(remaining -> {
throw new PlacementException("worker profile '" + profile + "' is quarantined "
+ "(credential '" + credentialId + "' exhausted; ~" + remaining
+ "s remaining) — refusing spawn");
});
}
/** {@code profile}'s credential group (CB-578 stage B), or the profile's own name if unconfigured. */
private String credentialIdFor(String profile) {
FleetConfig.Profile cfg = profiles0().get(profile);
return cfg == null ? profile : cfg.effectiveCredentialId();
}
/** The subset of {@code candidates} whose credential is currently quarantined (CB-578 stage B). */
private Set<String> quarantinedProfiles(List<PlacementCandidate> candidates) {
return candidates.stream()
.map(PlacementCandidate::profile)
.filter(p -> quarantine.isQuarantined(credentialIdFor(p)))
.collect(Collectors.toSet());
}
private void enforceMaxLoad(String profile) {
// Absent config, or a config whose maxLoad normalized to null (ABSENT ⇒ unlimited at load),
// means no cap — never cap what wasn't configured. Note "non-positive ⇒ unlimited" was true
// until CB-585: an explicit `maxLoad: 0` now survives as 0 and is a real cap of zero, so the
// check below refuses every spawn on that profile, and a negative value is refused at config
// load rather than normalized away.
FleetConfig.Profile cfg = profiles0().get(profile);
// Absent config, or a config whose maxLoad normalized to null (non-positive ⇒ unlimited at
// load), means no cap — never cap what wasn't configured.
BridgedConfig.Profile cfg = profiles0().get(profile);
Integer cap = (cfg == null) ? null : cfg.maxLoad();
if (cap == null) {
return;
@@ -406,8 +322,8 @@ public final class CompositePeerLauncher implements PeerLauncher {
* a pool entry with no profile, so a survivor is a profile this particular composite does not own.
*/
private List<String> poolFor(MemberRole role) {
Map<String, FleetConfig.Profile> configured = profiles0();
FleetConfig.Fleet f = fleet.get();
Map<String, BridgedConfig.Profile> configured = profiles0();
BridgedConfig.Fleet f = fleet.get();
List<String> pool = (f == null) ? List.of() : f.profilesFor(role);
List<String> known = pool.stream().filter(configured::containsKey).toList();
return known.isEmpty() ? List.copyOf(configured.keySet()) : known;
@@ -423,7 +339,7 @@ public final class CompositePeerLauncher implements PeerLauncher {
private List<PlacementCandidate> candidates(MemberRole role) {
List<PlacementCandidate> out = new ArrayList<>();
for (String name : poolFor(role)) {
FleetConfig.Profile w = profiles0().get(name);
BridgedConfig.Profile w = profiles0().get(name);
if (w != null) {
out.add(new PlacementCandidate(name, null, w.weight(), w.maxLoad()));
}
@@ -443,98 +359,12 @@ public final class CompositePeerLauncher implements PeerLauncher {
@Override
public void stop(String id) {
HerdrPeerLauncher d = spawnedBy.get(id);
HerdrPeerLauncher d = spawnedBy.remove(id);
if (d == null) {
if (herdrDaemonCount() == 1) {
log.debug("stop({}) — no recorded owner in a single-daemon fleet", id);
d = delegates.getFirst();
} else {
d = probeOwner(id);
if (d == null) {
// No configured herdr daemon has ever heard of this pane. CB-185 blocker 1: this
// is the normal case right after a daemon restart empties spawnedBy for a member
// that has ALREADY been torn down since — the caller retried a stop that already
// succeeded. Nothing to close and no owner to cache; matching the tolerance
// HerdrPeerLauncher#stop already gives an already-gone pane (agent.close swallows
// that as success), stop() here is a no-op rather than a refusal.
log.debug("stop({}) — no configured herdr daemon knows this pane; "
+ "treating as already stopped", id);
return;
}
}
log.debug("stop({}) — no recorded owner, routing to the first adapter (pane-addressed)", id);
d = delegates.getFirst();
}
// Drop the owner record only after the delegate accepted the stop. Removing it first meant a
// delegate that threw left the pane alive with its owner forgotten, so the retry fell into
// the ambiguous branch above and refused the id for good.
d.stop(id);
spawnedBy.remove(id);
}
/**
* CB-185 blocker 1: recover a spawnedBy cache miss by asking every distinct herdr daemon which
* one actually knows {@code id} — the fix for "after a restart, every surviving member becomes
* un-stoppable" (spawnedBy is in-memory only, so a restart empties it, and members intentionally
* outlive the daemon).
*
* <p>Grouped by daemon identity, not by delegate, for the same reason {@link #list()} groups
* that way: two adapters (claude-code, opencode) sharing one herdr connection would otherwise be
* probed twice, and a pane on their shared daemon would look owned by two adapters instead of
* one daemon.
*
* <p>A daemon that fails to answer {@code list()} (e.g. it is down) is treated as "does not know
* this pane" rather than aborting the whole probe — one unreachable daemon must never make a
* pane that a <em>different</em>, healthy daemon actually owns un-stoppable too, which would
* resurrect the exact bug this method exists to fix.
*
* @return the owning delegate — cached into {@link #spawnedBy} so the next call is free — or
* {@code null} when no daemon knows the pane
* @throws IllegalArgumentException when more than one daemon claims the pane: pane ids are
* per-daemon counters, so two daemons really can both hold, say, {@code w1:p1}, and there
* is no way to tell which one the caller means
*/
private HerdrPeerLauncher probeOwner(String id) {
Map<HerdrClient, HerdrPeerLauncher> byDaemon = new IdentityHashMap<>();
for (HerdrPeerLauncher delegate : delegates) {
byDaemon.putIfAbsent(delegate.herdr(), delegate);
}
List<HerdrPeerLauncher> owners = new ArrayList<>();
for (HerdrPeerLauncher representative : byDaemon.values()) {
List<Agent> agents;
try {
agents = representative.list();
} catch (HerdrException e) {
log.warn("stop({}) probe: a configured herdr daemon was unreachable ({}); "
+ "treating it as not knowing this pane", id, e.getClass().getSimpleName());
continue;
}
boolean knows = agents.stream().anyMatch(a -> id.equals(a.paneId()));
if (knows) {
owners.add(representative);
}
}
if (owners.size() > 1) {
throw new IllegalArgumentException("ambiguous paneId '" + id + "': "
+ owners.size() + " configured herdr daemons report this pane — "
+ "no way to tell which one the caller means");
}
if (owners.isEmpty()) {
return null;
}
HerdrPeerLauncher owner = owners.get(0);
spawnedBy.put(id, owner);
return owner;
}
/**
* Count actual herdr daemons, not peer adapter kinds. Identity is intentional: separate client
* objects may represent different daemons even if a client later implements value equality.
*/
private int herdrDaemonCount() {
Set<HerdrClient> daemons = Collections.newSetFromMap(new IdentityHashMap<>());
for (HerdrPeerLauncher delegate : delegates) {
daemons.add(delegate.herdr());
}
return daemons.size();
}
@Override
@@ -557,36 +387,14 @@ public final class CompositePeerLauncher implements PeerLauncher {
return defaultProfile;
}
/**
* {@inheritDoc}
*
* <p>Routes to the specific delegate {@code profileName} resolves to, not the fleet-wide
* union {@link #capabilities()} returns — the whole reason this method exists (CB-584): in a
* mixed fleet, one adapter's capability must never be read as every profile's.
*/
@Override
public Set<Capability> capabilitiesFor(String profileName) {
return route(profileName).capabilities();
}
/**
* Every herdr agent, deduplicated by (owning daemon, pane id).
*
* <p>Delegates that share one {@link HerdrClient} see the same global agent set, so listing them
* both would report every agent twice — that is what the dedupe is for. But pane ids are
* per-daemon counters, so two daemons really can both hold {@code w1:p1} on different panes.
* Keying on the pane id alone would silently drop one of them from {@code fleet_list} and from
* every status view built on it. The daemon is part of the key for exactly that reason.
*/
/** Every herdr agent, deduplicated by pane id (all delegates share one herdr and list globally). */
@Override
public List<Agent> list() {
Map<HerdrClient, Integer> daemonIndex = new IdentityHashMap<>();
Map<String, Agent> byPane = new LinkedHashMap<>();
for (HerdrPeerLauncher d : delegates) {
int daemon = daemonIndex.computeIfAbsent(d.herdr(), _ -> daemonIndex.size());
for (Agent a : d.list()) {
if (a.paneId() != null) {
byPane.putIfAbsent(daemon + "\u0000" + a.paneId(), a);
byPane.putIfAbsent(a.paneId(), a);
}
}
}
@@ -0,0 +1,740 @@
package dev.ltms.bridged.member;
import dev.ltms.bridged.config.BridgedConfig;
import dev.ltms.bridged.herdr.Agent;
import dev.ltms.bridged.herdr.AgentControl;
import dev.ltms.bridged.herdr.HerdrException;
import dev.ltms.bridged.herdr.Tab;
import dev.ltms.bridged.herdr.Workspace;
import dev.ltms.bridged.herdr.WorkspaceControl;
import dev.ltms.bridged.peer.MemberRole;
import dev.ltms.bridged.peer.PeerHandle;
import dev.ltms.bridged.peer.PeerLauncher;
import dev.ltms.bridged.peer.PeerUnreachableException;
import dev.ltms.bridged.peer.SpawnRequest;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.security.SecureRandom;
import java.util.ArrayList;
import java.util.Collection;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.UUID;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicLong;
import java.util.function.Function;
import java.util.function.LongSupplier;
import java.util.function.Supplier;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* Abstract base for {@link PeerLauncher} adapters that materialize a peer as a <em>herdr</em>
* agent (a CLI coding agent running in a herdr tab/pane). It owns everything that is the same
* regardless of <em>which</em> coding agent runs: tab/pane placement, the CB-306 spawn-readiness
* gate, unique naming, CB-117 orphan reap, teardown, {@link #list() listing}, and cwd resolution.
*
* <p>Two seams are peer-specific and supplied by the concrete adapter:
* <ul>
* <li>{@code namePrefix} (constructor arg) — the label prefix ({@code claude}, {@code opencode})
* that drives both unique naming and the orphan-reap pattern, so each adapter reaps only its
* own kind of pane and never another's.</li>
* <li>{@link #buildLaunch(BridgedConfig.Profile, LaunchSpec)} — the peer-specific env map + argv, including any
* subscription/guard check, MCP mount, and instruction injection. The base never sees how the
* peer is configured; it only places and starts the returned {@link Launch}.</li>
* </ul>
*
* <p>Placement: in the default {@code tab} policy a peer lands in its own tab inside a dedicated
* worker space (found-or-created once, then shared), so peers never split or clutter the user's
* real work spaces. Teardown removes the peer's pane <em>and</em> its now-empty tab, tolerating an
* already-gone peer so a repeated DELETE is harmless.
*/
public abstract class HerdrPeerLauncher implements PeerLauncher {
private static final Logger log = LoggerFactory.getLogger(HerdrPeerLauncher.class);
/** herdr rejects a duplicate agent {@code name}; we retry a bumped name this many times. */
private static final int NAME_RETRIES = 8;
/**
* Retries for {@code agent.start} against a seed pane whose shell has not reached its prompt
* yet — {@code tab.create}/{@code pane.split} return as soon as the pane exists, and herdr
* refuses to start an agent in a pane that is not "an available shell" ({@code agent_pane_busy}).
*/
private static final int SHELL_READY_RETRIES = 20;
private final String namePrefix; // label prefix: naming + reap scheme
private final AgentControl agents;
private final WorkspaceControl spaces;
private final Map<String, BridgedConfig.Profile> profiles; // profile name → spawn settings
private final String defaultProfile; // profile a no-arg spawn uses (nullable)
/** Host env lookup (injectable for tests); adapters read it in {@link #buildLaunch}. */
protected final Function<String, String> env;
private final AtomicLong nameSeq = new AtomicLong(); // per-peer counter (herdr agent names only)
/**
* Live fleet config, read once per spawn. A null supplier or value leaves tab labels at their
* default and supplies no role charter. A profile's own {@code tabLabel} still overrides it.
*
* <p>CB-559: a supplier rather than a snapshot, so a config reload affects the next launch
* without a restart. Existing tabs keep the label they were given.
*/
private final Supplier<BridgedConfig.Fleet> fleet;
/** The final instruction always requires a bridge reply when the bridge MCP is mounted. */
protected static final String REPLY_CHARTER =
"You are a spawned member in the claude-bridge fleet. Every message you receive arrives "
+ "through the bridge, and the ONLY channel back to the sender is the bridge_reply MCP tool. "
+ "Text you write in your terminal is NOT sent anywhere — the sender cannot see your screen, "
+ "so an in-terminal answer is silently discarded. Therefore you MUST end EVERY turn by calling "
+ "bridge_reply with `content` set to your complete response. This holds for every message without "
+ "exception — tasks, questions, clarifications, acknowledgements, and ordinary back-and-forth "
+ "conversation. Call bridge_reply exactly once, as the final action of your turn, with your full "
+ "answer in `content`; never wait for confirmation first. If you end a turn without calling "
+ "bridge_reply, the sender receives nothing and the exchange stalls.";
/**
* Tab numbers, counted per {@code role/profile} pair (CB-557).
*
* <p>Deliberately not {@link #nameSeq}. That counter is shared by every profile this launcher
* serves, because its job is to make herdr <em>agent names</em> unique. Reusing it for the tab
* label made the numbers global, so sibling tabs read {@code #4}, {@code #9}, {@code #17} — gaps
* that look like a member died. Counting per role+profile makes {@code dev: sonnet #2} mean the
* second sonnet dev, which is what a reader assumes it means.
*
* <p>Resets when the daemon restarts, and that is fine: the label is a human-facing hint, not an
* identity. Identity is {@link PeerHandle#id()}.
*/
private final ConcurrentMap<String, AtomicLong> labelSeq = new ConcurrentHashMap<>();
private final long spawnReadyTimeoutMs; // 0 = disable gate (legacy non-blocking spawn)
private final LongSupplier nowMillis; // monotonic clock (injectable for tests)
private final Runnable sleeper; // sleep/wait hook (injectable for tests; never real-sleep in unit tests)
// Per-process token mixed into each peer name so a fresh process (nameSeq back at 0) cannot
// collide with same-profile peers that outlived a restart. See startUniquelyNamed.
private final String nameNonce = String.format("%06x", new SecureRandom().nextInt(1 << 24));
// CB-519: PeerHandle.id() is a host-unique opaque UUID, decoupled from the herdr pane id. The
// routing/registry key is the UUID; the herdr pane id is a launcher-private placement/teardown
// coordinate. This map bridges the two so stop(id) can resolve a host-unique key back to the
// exact pane it must tear down. The pane id is launcher-private (never the routing key) — see
// PeerHandle.id().
private final ConcurrentMap<String, String> paneByAgentId = new ConcurrentHashMap<>();
private final AtomicBoolean resetUnsupportedLogged = new AtomicBoolean();
/**
* @param namePrefix label prefix for this peer kind (drives naming and reap)
* @param agents herdr agent control (start, status, close)
* @param spaces workspace / tab control (ensure, create, close)
* @param profiles configured peer profiles
* @param defaultProfile profile a no-argument spawn uses (nullable)
* @param env host env lookup (injectable for tests)
* @param spawnReadyTimeoutMs max ms to wait for injectable state (0 disables the gate)
* @param nowMillis monotonic clock source (e.g. {@code System::currentTimeMillis})
* @param sleeper sleep/wait hook (never called when the gate is disabled); the poll
* interval is baked into this hook, so the base needs no poll field
*/
protected HerdrPeerLauncher(String namePrefix, AgentControl agents, WorkspaceControl spaces,
Map<String, BridgedConfig.Profile> profiles, String defaultProfile,
Function<String, String> env,
long spawnReadyTimeoutMs,
LongSupplier nowMillis, Runnable sleeper) {
this(namePrefix, agents, spaces, profiles, defaultProfile, env, spawnReadyTimeoutMs,
nowMillis, sleeper, null);
}
/**
* As above, plus the live {@code fleet} config (CB-557).
*
* @param fleet live fleet config, read once per spawn; {@code null} ⇒ default tab label and no
* role charter. A separate constructor rather than a new parameter on the one
* above, so every existing call site keeps the default without an edit.
*/
protected HerdrPeerLauncher(String namePrefix, AgentControl agents, WorkspaceControl spaces,
Map<String, BridgedConfig.Profile> profiles, String defaultProfile,
Function<String, String> env,
long spawnReadyTimeoutMs,
LongSupplier nowMillis, Runnable sleeper,
Supplier<BridgedConfig.Fleet> fleet) {
this.fleet = fleet;
this.namePrefix = namePrefix;
this.agents = agents;
this.spaces = spaces;
this.profiles = Map.copyOf(profiles);
this.defaultProfile = defaultProfile;
this.env = env;
this.spawnReadyTimeoutMs = spawnReadyTimeoutMs;
this.nowMillis = nowMillis;
this.sleeper = sleeper;
}
// --- adapter seams -------------------------------------------------------------------------
/**
* Build the peer-specific launch for {@code cfg}: the environment map and argv handed to herdr.
* Any subscription/guard check, MCP mount, and instruction injection happen here. The env map
* and argv are adapter-private; the base only places and starts what is returned.
*/
protected abstract Launch buildLaunch(BridgedConfig.Profile cfg, LaunchSpec spec);
/** Direct transport access for peer-specific, non-turn control operations. */
protected final AgentControl agents() {
return agents;
}
/** Resolve the public peer id to the launcher's private herdr target. */
protected final String agentTarget(String id) {
return paneByAgentId.get(id);
}
@Override
public boolean clearContext(String id) {
if (resetUnsupportedLogged.compareAndSet(false, true)) {
log.warn("context reset is unsupported for peer kind {}; clearAfterTurn is a no-op",
namePrefix);
}
return false;
}
/**
* A peer-specific launch: the herdr {@code env} map and {@code argv}, plus — for an adapter
* that carries durable session identity (CB-547a) — the peer's OWN session id
* ({@link PeerHandle#agentSessionId()}), known before the peer has written anything. Null for
* a launch that carries no identity.
*/
protected record Launch(Map<String, String> env, List<String> argv, String agentSessionId) {
/** A launch without a discoverable agent session id (an adapter that carries none). */
Launch(Map<String, String> env, List<String> argv) {
this(env, argv, null);
}
}
/** All per-spawn values adapters may need, including the base-composed effective charter. */
protected record LaunchSpec(String sessionName, String resumeSessionId, MemberRole role, String charter) {
}
// --- profile surface -----------------------------------------------------------------------
/** The configured peer profile names (what {@code spawn(profile)} accepts). */
@Override
public Set<String> profiles() {
return profiles.keySet();
}
/** The parity-overlay file list for {@code profileName} (default list when unset). */
@Override
public List<String> parityOverlay(String profileName) {
String name = (profileName == null || profileName.isBlank()) ? defaultProfile : profileName;
if (name == null || name.isBlank()) {
return List.of();
}
BridgedConfig.Profile cfg = profiles.get(name);
return cfg == null ? List.of() : cfg.parityOverlay();
}
/** The profile a no-argument spawn uses, or {@code null} if none is configured. */
@Override
public String defaultProfile() {
return defaultProfile;
}
/** The configured profiles, for adapter capability decisions (e.g. any git-token grant). */
protected Collection<BridgedConfig.Profile> profileConfigs() {
return profiles.values();
}
/** Resolve {@code profileName} (null/blank → default) to its config, or throw with the options. */
protected BridgedConfig.Profile requireProfile(String profileName) {
String name = (profileName == null || profileName.isBlank()) ? defaultProfile : profileName;
if (name == null || name.isBlank()) {
throw new IllegalArgumentException("no default worker profile is configured — "
+ "pass a profile; configured: " + profiles.keySet());
}
BridgedConfig.Profile cfg = profiles.get(name);
if (cfg == null) {
throw new IllegalArgumentException("unknown worker profile '" + name
+ "' — configured: " + profiles.keySet());
}
return cfg;
}
// --- spawn ---------------------------------------------------------------------------------
/** A started peer plus the launch's agent-session id (the resume handle, or null). */
private record Spawned(Agent agent, String agentSessionId) {
}
/**
* Spawn a peer. {@code profileName} null/blank → the default profile. The working directory
* (CB-112) is resolved by {@link #resolveCwd}: an explicit {@code requestedCwd}, else the
* profile's configured {@code cwd}, else {@code callerCwd} (the primary's cwd, when the spawn
* came from the primary over MCP), else the daemon's cwd — never assumed to be {@code $HOME}.
* The adapter's {@link #buildLaunch} runs before any herdr call.
*/
protected Agent spawnInternal(String profileName, String requestedCwd, String callerCwd) {
return spawnInternal(profileName, requestedCwd, callerCwd, null, null).agent();
}
/** Pre-CB-557 shape: no explicit role, so the tab is labelled as a {@code dev}. */
protected Spawned spawnInternal(String profileName, String requestedCwd, String callerCwd,
String sessionName, String resumeSessionId) {
return spawnInternal(profileName, requestedCwd, callerCwd, sessionName, resumeSessionId,
MemberRole.DEV);
}
/**
* Spawn a peer with session identity (CB-547a). The session values, role, and charter are
* threaded from the {@link SpawnRequest} into {@link #buildLaunch(BridgedConfig.Profile,
* LaunchSpec)}, and the launch's resolved agent-session id is returned alongside the agent so
* the caller can put it on the {@link PeerHandle}.
*/
protected Spawned spawnInternal(String profileName, String requestedCwd, String callerCwd,
String sessionName, String resumeSessionId, MemberRole role) {
BridgedConfig.Profile cfg = requireProfile(profileName);
BridgedConfig.Fleet liveFleet = fleet == null ? null : fleet.get();
String roleCharter = liveFleet == null ? null : liveFleet.charterFor(role);
String replyCharter = cfg.hasMcp() ? REPLY_CHARTER : null;
String charter = roleCharter == null ? replyCharter
: replyCharter == null ? roleCharter : roleCharter + "\n\n" + replyCharter;
Launch launch = buildLaunch(cfg, new LaunchSpec(sessionName, resumeSessionId, role, charter));
String cwd = resolveCwd(requestedCwd, cfg, callerCwd);
Agent agent = cfg.tabPlacement()
? spawnInTab(cfg, launch.env(), launch.argv(), cwd, role, liveFleet)
: spawnAsPane(cfg, launch.env(), launch.argv(), cwd);
return new Spawned(agent, launch.agentSessionId());
}
/**
* The next tab number for {@code role} on {@code profile}, starting at 1.
*
* <p>Starts at 1 rather than 0 because the number is read by a person: {@code "dev: sonnet #1"}
* is the first one, and {@code #0} invites the question of where {@code #1} went.
*/
private long nextLabelSeq(MemberRole role, String profile) {
String key = (role == null ? "" : role.wireName()) + "/" + profile;
return labelSeq.computeIfAbsent(key, _ -> new AtomicLong()).incrementAndGet();
}
/**
* {@inheritDoc}
*
* <p>Delegates to {@link #spawnInternal} and wraps the resulting herdr {@link Agent} in a
* {@link WorkerHandle} whose {@link PeerHandle#id()} is a fresh <em>host-unique</em> opaque
* UUID (CB-519), deliberately decoupled from the herdr pane id: the id is the registry/routing
* key and must never collide across daemon processes on the same host, while the herdr pane id
* stays a launcher-private placement/teardown coordinate, remembered here so {@link #stop}
* can resolve the host-unique key back to its pane. When {@code spawnReadyTimeoutMs > 0},
* blocks until the peer's herdr status is injectable or the timeout elapses; on timeout the
* pane is closed (no orphan) and a {@link PeerUnreachableException} is thrown.
*/
@Override
public PeerHandle spawn(SpawnRequest req) {
Spawned spawned = spawnInternal(req.profileName(), req.requestedCwd(), req.callerCwd(),
req.sessionName(), req.resumeSessionId(), req.role());
Agent agent = spawned.agent();
String paneId = agent.paneId();
if (spawnReadyTimeoutMs > 0) {
waitUntilInjectableOrThrow(paneId);
}
// CB-519: the handle id is a host-unique UUID; the herdr pane it maps to stays internal.
String id = UUID.randomUUID().toString();
paneByAgentId.put(id, paneId);
return new WorkerHandle(id, agent.terminalId(), requireProfile(req.profileName()).profile(),
req.sessionName(), spawned.agentSessionId());
}
@Override
public String effectiveCwd(SpawnRequest req) {
return effectiveCwd(req.profileName(), req.requestedCwd(), req.callerCwd());
}
/**
* CB-301: the effective working directory a spawn for {@code profileName} would use, without
* actually spawning.
*/
private String effectiveCwd(String profileName, String requestedCwd, String callerCwd) {
return resolveCwd(requestedCwd, requireProfile(profileName), callerCwd);
}
/**
* CB-112 cwd resolution: spawn arg → profile config → the primary's cwd → the daemon's cwd.
* Never returns {@code null}/blank: {@code "."} (the daemon's own working directory) is the
* guaranteed last resort so a pathological environment with an unset {@code user.dir} still
* honours the "never assume {@code $HOME}" contract rather than letting herdr default the pane.
*/
private static String resolveCwd(String requestedCwd, BridgedConfig.Profile cfg, String callerCwd) {
return firstNonBlank(requestedCwd, cfg.cwd(), callerCwd, System.getProperty("user.dir"), ".");
}
private static String firstNonBlank(String... values) {
for (String v : values) {
if (v != null && !v.isBlank()) return v;
}
return null;
}
/** Dedicated worker space → own tab (carrying cwd+env) → start the peer into the seed pane. */
private Agent spawnInTab(BridgedConfig.Profile cfg, Map<String, String> workerEnv,
List<String> argv, String cwd, MemberRole role, BridgedConfig.Fleet liveFleet) {
Workspace space = spaces.ensureWorkspace(cfg.workspace());
Tab.Created tab = spaces.createTab(space.workspaceId(), cwd, workerEnv);
log.info("spawning {} profile={} space={} tab={} cwd={}",
namePrefix, cfg.profile(), space.workspaceId(), tab.tab().tabId(), cwd);
Started started;
try {
if (tab.rootPaneId() == null) {
// Protocol 19 starts the agent INTO the seed pane — without one there is nowhere
// to start, and a partial tab would be left behind.
throw new IllegalStateException("tab " + tab.tab().tabId()
+ " had no seed pane in the create response — cannot start a peer in it");
}
started = startUniquelyNamed(cfg, argv, tab.rootPaneId());
} catch (RuntimeException e) {
// The peer never started — don't leave the tab we just created orphaned.
// Best-effort cleanup; never let it mask the real spawn failure.
try {
spaces.closeTab(tab.tab().tabId());
} catch (RuntimeException cleanup) {
log.warn("failed to close orphaned tab {} after spawn error: {}",
tab.tab().tabId(), cleanup.getMessage());
}
throw e;
}
// The peer is LIVE now, in the seed pane itself (no shell pane to drop — protocol 19).
// Labelling is cosmetic: it must not fail the spawn or orphan the running peer — on error
// we log and still return it so the caller gets its paneId and can tear it down.
tidy("label tab " + tab.tab().tabId(),
() -> spaces.renameTab(tab.tab().tabId(),
cfg.renderTabLabel(
liveFleet == null ? null : liveFleet.tabLabel(),
role, nextLabelSeq(role, cfg.profile()))));
log.info("{} started pane={} tab={} terminal={}",
namePrefix, started.agent().paneId(), started.agent().tabId(), started.agent().terminalId());
return started.agent();
}
/** Run a best-effort post-start cleanup step, logging (not throwing) on failure. */
private void tidy(String what, Runnable step) {
try {
step.run();
} catch (RuntimeException e) {
log.warn("post-start step failed ({}) — peer is running regardless: {}", what, e.getMessage());
}
}
/** Legacy placement: split the currently-focused tab; the peer still starts in {@code cwd}. */
private Agent spawnAsPane(BridgedConfig.Profile cfg, Map<String, String> workerEnv,
List<String> argv, String cwd) {
log.info("spawning {} (pane placement) profile={} cwd={} argv={}",
namePrefix, cfg.profile(), cwd, argv);
String paneId = spaces.splitPane(cwd, workerEnv);
if (paneId == null) {
throw new IllegalStateException("pane.split returned no pane — cannot start a peer");
}
Agent peer = startUniquelyNamed(cfg, argv, paneId).agent();
log.info("{} started pane={} terminal={}", namePrefix, peer.paneId(), peer.terminalId());
return peer;
}
/** A started peer together with the sequence its unique name/label used. */
private record Started(Agent agent, long seq) {
}
/**
* Start the peer under a unique herdr agent name. herdr requires each running agent's
* {@code name} to be distinct (a 2nd identical {@code name} fails {@code agent_name_taken}) —
* the exact case that makes multiple peers useful. The name is
* {@code <prefix>-<profile>-<nonce>-<seq>}: {@code seq} distinguishes peers within this process,
* and the per-process {@code nonce} keeps a fresh process (whose {@code seq} restarts at 0) from
* colliding with same-profile peers that outlived a restart. The retry is a belt-and-braces
* backstop for the astronomically unlikely nonce+seq clash; the name is a label only — herdr
* detects kind and status from terminal output, not from it.
*/
private Started startUniquelyNamed(BridgedConfig.Profile cfg, List<String> argv, String paneId) {
// Protocol 19 resolves the executable from the agent kind (== namePrefix here), so
// argv[0] — the configured executable — is dropped and only the extra args are passed.
List<String> args = argv.isEmpty() ? argv : argv.subList(1, argv.size());
HerdrException last = null;
for (int attempt = 0; attempt < NAME_RETRIES; attempt++) {
long seq = nameSeq.incrementAndGet();
String name = namePrefix + "-" + cfg.profile() + "-" + nameNonce + "-" + seq;
try {
return new Started(startAwaitingShellPrompt(name, args, paneId), seq);
} catch (HerdrException e) {
if (!"agent_name_taken".equals(e.code())) throw e;
log.debug("peer name '{}' taken, retrying", name);
last = e;
}
}
throw last;
}
/** Start the agent into {@code paneId}, waiting out the seed shell's boot with the sleeper. */
private Agent startAwaitingShellPrompt(String name, List<String> args, String paneId) {
HerdrException busy = null;
for (int attempt = 0; attempt < SHELL_READY_RETRIES; attempt++) {
try {
return agents.start(name, namePrefix, args, paneId);
} catch (HerdrException e) {
if (!"agent_pane_busy".equals(e.code())) throw e;
log.debug("pane {} not at its shell prompt yet, retrying agent.start", paneId);
busy = e;
sleeper.run();
}
}
throw busy;
}
// --- discovery + reap ----------------------------------------------------------------------
/** All herdr-tracked agents — discovery for "what peers exist". */
@Override
public List<Agent> list() {
return agents.list();
}
/**
* Reap peer panes left behind by an earlier daemon process (CB-117). herdr keeps a peer's pane
* alive across a daemon restart <em>by design</em>, and that pane's id is held only by its
* spawner — so a peer whose owning process exited before issuing the matching teardown leaks
* with nothing tracking it. On boot we scan herdr for agents whose name matches our
* {@code <prefix>-<profile>-<nonce>-<seq>} scheme with a nonce <em>other</em> than this
* process's {@link #nameNonce}, and tear each one down (its pane and, via {@link #stop}, its
* now-empty dedicated tab). A current-nonce peer is ours and live, so it is left running; a
* user's own session carries no such name and is never touched. A peer from a <em>different</em>
* adapter (different prefix) is likewise never touched. Best-effort: a failed listing, or a
* failure to stop any one peer, is logged and never aborts startup.
*
* @return the number of orphaned peers reaped
*/
@Override
public int reapOrphanWorkers() {
List<Agent> all;
try {
all = agents.list();
} catch (RuntimeException e) {
log.warn("orphan-peer reap skipped — agent.list failed: {}", e.getMessage());
return 0;
}
int reaped = 0;
for (Agent a : all) {
if (!isForeignWorker(namePrefix, a.name(), nameNonce)) continue;
try {
stop(a.paneId());
reaped++;
log.info("reaped orphan {} {} (pane={} tab={}) left by a prior daemon",
namePrefix, a.name(), a.paneId(), a.tabId());
} catch (RuntimeException e) {
log.warn("could not reap orphan {} {} (pane={}): {}",
namePrefix, a.name(), a.paneId(), e.getMessage());
}
}
if (reaped > 0) {
log.info("orphan-peer reap complete — {} stale {} peer(s) removed at startup", reaped, namePrefix);
}
return reaped;
}
/** The {@code <prefix>-<profile>-<nonce>-<seq>} name pattern; group 1 captures the 6-hex nonce. */
static Pattern workerNamePattern(String prefix) {
return Pattern.compile(prefix + "-.*-([0-9a-f]{6})-\\d+");
}
/**
* Whether {@code name} is a peer of kind {@code prefix} started by a <em>different</em> process
* than {@code currentNonce} — the reap predicate (CB-117). True only for the prefix's naming
* scheme with a foreign nonce: a non-peer name, a different adapter's name, or our own live
* nonce is excluded. Pure and package-private so the decision is unit-testable without herdr.
*/
static boolean isForeignWorker(String prefix, String name, String currentNonce) {
String nonce = workerNonce(prefix, name);
return nonce != null && !nonce.equals(currentNonce);
}
/** The 6-hex nonce embedded in a {@code prefix} peer name, or {@code null} if not one. */
static String workerNonce(String prefix, String name) {
if (name == null) return null;
Matcher m = workerNamePattern(prefix).matcher(name);
return m.matches() ? m.group(1) : null;
}
/** This process's peer-name nonce (a label component only; exposed for reaper tests). */
String nameNonce() {
return nameNonce;
}
// --- teardown ------------------------------------------------------------------------------
/**
* Tear a peer down: close the pane, and close its tab <em>only</em> when the peer is that tab's
* sole occupant. The single-pane check is what makes this safe regardless of how the peer was
* placed (or a placement-config change across a restart): a pane-placement peer sitting in one
* of the user's shared tabs has siblings, so its tab is never closed — we only ever remove a
* tab we created to hold one peer.
*
* <p>{@code idOrPane} is the {@link PeerHandle#id()} of a peer this launcher spawned (CB-519's
* host-unique opaque UUID), resolved through {@link #paneByAgentId} to the pane it must tear
* down. An argument that is not one of our ids is treated as a raw herdr pane id — the
* {@link #reapOrphanWorkers() orphan-reap} and spawn-gate-timeout paths, plus any caller that
* passes a pane directly, keep working without an owning id.
*
* <p>Resolves the tab from the pane <em>before</em> closing it. An already-gone pane/tab
* (repeated DELETE, crashed peer) is treated as success; any other failure propagates so a
* genuinely failed teardown is not reported as done.
*/
@Override
public void stop(String idOrPane) {
// Teardown knows only the pane, not which profile spawned it. Attempt tab cleanup when any
// profile uses tab placement (so the bridge may have created a dedicated peer tab); the
// single-occupant check below is what actually protects the user's shared tabs.
String paneId = paneByAgentId.remove(idOrPane);
if (paneId == null) {
paneId = idOrPane; // raw-pane fallback (reap, gate timeout, pane-addressed callers)
}
WorkspaceControl.PaneLocation loc = usesTabPlacement() ? spaces.locatePane(paneId) : null;
try {
agents.close(paneId);
} catch (HerdrException e) {
if (!isAlreadyGone(e)) throw e;
log.debug("pane.close({}) ignored — already gone: {}", paneId, e.getMessage());
}
if (loc != null && loc.tabPaneCount() == 1) {
spaces.closeTab(loc.tabId());
} else if (loc != null) {
log.debug("not closing tab {} — it holds {} panes (not a dedicated peer tab)",
loc.tabId(), loc.tabPaneCount());
}
}
/** Whether any configured profile places peers in their own tab (so tabs may need cleanup). */
private boolean usesTabPlacement() {
return profiles.values().stream().anyMatch(BridgedConfig.Profile::tabPlacement);
}
/** True when a herdr error means the target is already gone (safe to treat as done). */
private static boolean isAlreadyGone(HerdrException e) {
return e.code() != null && e.code().endsWith("_not_found");
}
// --- spawn-readiness gate (CB-306) ---------------------------------------------------------
/**
* Poll {@link AgentControl#status} until the pane reports an injectable state or the configured
* timeout elapses. On timeout, close the pane (self-reap) and throw.
*/
private void waitUntilInjectableOrThrow(String paneId) {
long deadline = nowMillis.getAsLong() + spawnReadyTimeoutMs;
while (nowMillis.getAsLong() < deadline) {
if (agents.status(paneId).injectable()) {
log.debug("peer pane={} reached injectable state", paneId);
return;
}
sleeper.run();
}
log.warn("peer pane={} did not become injectable within {}ms — closing", paneId, spawnReadyTimeoutMs);
stop(paneId);
throw new PeerUnreachableException(
"worker pane " + paneId + " did not reach injectable state within "
+ spawnReadyTimeoutMs + "ms");
}
/**
* A concrete {@link PeerHandle} wrapping herdr agent coordinates, the profile that spawned it,
* and the session identity the launch resolved (CB-547a): the bridge's logical name and the
* peer's own session id, both null when the spawn carried no identity.
*/
private record WorkerHandle(String id, String terminalId, String profile,
String sessionName, String agentSessionId) implements PeerHandle {
}
// --- shared helpers ------------------------------------------------------------------------
/** Put {@code k → v} only when {@code v} is present (non-null, non-blank). */
protected static void putIfPresent(Map<String, String> m, String k, String v) {
if (v != null && !v.isBlank()) {
m.put(k, v);
}
}
/** Host env lookup that tolerates an unconfigured (null/blank) var name — returns null then. */
protected String resolveEnv(String name) {
return (name == null || name.isBlank()) ? null : env.apply(name);
}
/**
* The parity-neutral git-forge token grant (CB-302): when {@code cfg} opts in via
* {@code gitTokenEnv} and the token resolves, inject {@code GITEA_TOKEN} plus its paired
* {@code GITEA_HOST}. Push over SSH is unaffected; the only incremental grant is PR-create.
* Peer-neutral, so every herdr adapter reuses it unchanged.
*/
protected void applyGitToken(Map<String, String> workerEnv, BridgedConfig.Profile cfg) {
if (!cfg.hasGitToken()) {
return;
}
String gitToken = resolveEnv(cfg.gitTokenEnv());
if (gitToken != null) {
workerEnv.put("GITEA_TOKEN", gitToken);
putIfPresent(workerEnv, "GITEA_HOST", resolveEnv(cfg.gitHostEnv()));
}
}
/** A fresh mutable env map — the conventional starting point for {@link #buildLaunch}. */
/**
* Seed a worker's environment (CB-511): the daemon's own {@code PATH}, then the profile's
* {@code env:} entries.
*
* <p>Why this exists: bridged passes herdr an explicit env map, and herdr merges it into
* <em>its own</em> process environment. So before this, a worker inherited whatever PATH the
* herdr server happened to be started with — on this host, one from weeks earlier with no JDK
* and no Maven, which left workers unable to run the build they were being asked to run. The
* worker's toolchain must follow from configuration, not from how a long-lived daemon was
* launched.
*
* <p>Adapter-specific variables are layered on top of this by {@code buildLaunch} and therefore
* win. That ordering is deliberate and load-bearing: it stops a profile's {@code env:} from
* overriding {@code ANTHROPIC_BASE_URL} and slipping past {@link
* dev.ltms.bridged.guard.SubscriptionGuard}, which is checked against the profile's
* {@code baseUrl} and nothing else.
*/
protected Map<String, String> baseEnv(BridgedConfig.Profile cfg) {
Map<String, String> workerEnv = new LinkedHashMap<>();
String path = env.apply("PATH");
if (path != null && !path.isBlank()) {
workerEnv.put("PATH", path);
}
if (cfg != null && cfg.env() != null) {
workerEnv.putAll(cfg.env());
}
return workerEnv;
}
/** Defensive copy of {@code argv} plus room to append launch flags. */
protected static List<String> mutableArgv(List<String> argv) {
return new ArrayList<>(argv);
}
/**
* Uninterruptible sleep — the production {@link #sleeper}. Tests supply their own no-op /
* fast-faking sleeper so they never real-sleep.
*/
protected static void sleepUninterruptibly(long ms) {
try {
Thread.sleep(ms);
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
// preserve the interrupt flag but continue — poll loops should not be aborted by an
// interrupt that was not meant for them.
}
}
}
@@ -1,16 +1,14 @@
package dev.ltms.fleet.member;
package dev.ltms.bridged.member;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ObjectNode;
import dev.ltms.fleet.config.FleetConfig;
import dev.ltms.fleet.herdr.Agent;
import dev.ltms.fleet.herdr.AgentControl;
import dev.ltms.fleet.herdr.WorkspaceControl;
import dev.ltms.fleet.peer.Capability;
import dev.ltms.fleet.peer.CharterReceipt;
import dev.ltms.fleet.peer.PeerHandle;
import dev.ltms.fleet.peer.PeerLauncher;
import dev.ltms.fleet.peer.SpawnRequest;
import dev.ltms.bridged.config.BridgedConfig;
import dev.ltms.bridged.herdr.Agent;
import dev.ltms.bridged.herdr.AgentControl;
import dev.ltms.bridged.herdr.WorkspaceControl;
import dev.ltms.bridged.peer.Capability;
import dev.ltms.bridged.peer.PeerHandle;
import dev.ltms.bridged.peer.SpawnRequest;
import java.io.IOException;
import java.io.UncheckedIOException;
@@ -24,9 +22,6 @@ import java.util.function.Function;
import java.util.function.LongSupplier;
import java.util.function.Supplier;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* The {@link HerdrPeerLauncher} adapter for <strong>opencode</strong> — an open-source,
* provider-agnostic terminal coding agent. Its whole reason for existing is to prove the
@@ -37,7 +32,7 @@ import org.slf4j.LoggerFactory;
* <p>The divergences from {@link ClaudeCodeLauncher}, all confined to {@link #buildLaunch}:
* <ul>
* <li><strong>No subscription boundary.</strong> opencode carries no {@code ANTHROPIC_BASE_URL}
* and there is no {@link dev.ltms.fleet.guard.SubscriptionGuard} — the guard is a
* and there is no {@link dev.ltms.bridged.guard.SubscriptionGuard} — the guard is a
* Claude-private concern, not part of the SPI. opencode reads the operator's own provider
* credentials from its global {@code auth.json}; the bridge injects none.</li>
* <li><strong>File-based MCP mount + instructions.</strong> opencode has no inline
@@ -53,8 +48,6 @@ import org.slf4j.LoggerFactory;
*/
public final class OpenCodeLauncher extends HerdrPeerLauncher {
private static final Logger log = LoggerFactory.getLogger(OpenCodeLauncher.class);
/** Label prefix for this adapter's herdr agent names (drives naming + orphan reap). */
private static final String NAME_PREFIX = "opencode";
@@ -76,7 +69,7 @@ public final class OpenCodeLauncher extends HerdrPeerLauncher {
* matches the legacy non-blocking spawn semantics. Config dirs are created under the JVM temp dir.
*/
public OpenCodeLauncher(AgentControl agents, WorkspaceControl spaces,
Map<String, FleetConfig.Profile> profiles, String defaultProfile,
Map<String, BridgedConfig.Profile> profiles, String defaultProfile,
Function<String, String> env) {
this(agents, spaces, profiles, defaultProfile, env, 0,
System::currentTimeMillis, () -> sleepUninterruptibly(300),
@@ -88,7 +81,7 @@ public final class OpenCodeLauncher extends HerdrPeerLauncher {
* the pane reports an injectable state or {@code spawnReadyTimeoutMs} elapses.
*/
public OpenCodeLauncher(AgentControl agents, WorkspaceControl spaces,
Map<String, FleetConfig.Profile> profiles, String defaultProfile,
Map<String, BridgedConfig.Profile> profiles, String defaultProfile,
Function<String, String> env,
long spawnReadyTimeoutMs, long spawnReadyPollMs) {
this(agents, spaces, profiles, defaultProfile, env,
@@ -101,40 +94,15 @@ public final class OpenCodeLauncher extends HerdrPeerLauncher {
* <em>role</em>; a profile may still override it with its own {@code tabLabel}.
*/
public OpenCodeLauncher(AgentControl agents, WorkspaceControl spaces,
Map<String, FleetConfig.Profile> profiles, String defaultProfile,
Map<String, BridgedConfig.Profile> profiles, String defaultProfile,
Function<String, String> env,
long spawnReadyTimeoutMs, long spawnReadyPollMs,
Supplier<FleetConfig.Fleet> fleet) {
Supplier<BridgedConfig.Fleet> fleet) {
this(agents, spaces, profiles, defaultProfile, env, spawnReadyTimeoutMs,
System::currentTimeMillis, () -> sleepUninterruptibly(spawnReadyPollMs),
defaultConfigRoot(), defaultDiscoveryRoot(), fleet);
}
/**
* Production constructor, plus the CB-596 {@code memberCredentials} policy supplier.
*/
public OpenCodeLauncher(AgentControl agents, WorkspaceControl spaces,
Map<String, FleetConfig.Profile> profiles, String defaultProfile,
Function<String, String> env,
long spawnReadyTimeoutMs, long spawnReadyPollMs,
Supplier<FleetConfig.Fleet> fleet,
Supplier<FleetConfig.MemberCredentials> memberCredentials) {
this(agents, spaces, profiles, defaultProfile, env, spawnReadyTimeoutMs, spawnReadyPollMs,
fleet, memberCredentials, null);
}
/** Production constructor, plus the live config for URI environment exclusions. */
public OpenCodeLauncher(AgentControl agents, WorkspaceControl spaces,
Map<String, FleetConfig.Profile> profiles, String defaultProfile,
Function<String, String> env, long spawnReadyTimeoutMs, long spawnReadyPollMs,
Supplier<FleetConfig.Fleet> fleet,
Supplier<FleetConfig.MemberCredentials> memberCredentials,
Supplier<FleetConfig> config) {
this(agents, spaces, profiles, defaultProfile, env, spawnReadyTimeoutMs,
System::currentTimeMillis, () -> sleepUninterruptibly(spawnReadyPollMs),
defaultConfigRoot(), defaultDiscoveryRoot(), fleet, memberCredentials, config);
}
/**
* Full testability constructor. Every injectable collaborator is explicit so unit tests supply a
* fake clock ({@code nowMillis}), poll-loop wait ({@code sleeper}), and a temp {@code configRoot}
@@ -155,7 +123,7 @@ public final class OpenCodeLauncher extends HerdrPeerLauncher {
* {@link OpenCodeSessionDiscovery})
*/
public OpenCodeLauncher(AgentControl agents, WorkspaceControl spaces,
Map<String, FleetConfig.Profile> profiles, String defaultProfile,
Map<String, BridgedConfig.Profile> profiles, String defaultProfile,
Function<String, String> env,
long spawnReadyTimeoutMs,
LongSupplier nowMillis, Runnable sleeper,
@@ -170,47 +138,18 @@ public final class OpenCodeLauncher extends HerdrPeerLauncher {
* @param fleet live fleet config, read once for each spawn
*/
public OpenCodeLauncher(AgentControl agents, WorkspaceControl spaces,
Map<String, FleetConfig.Profile> profiles, String defaultProfile,
Map<String, BridgedConfig.Profile> profiles, String defaultProfile,
Function<String, String> env,
long spawnReadyTimeoutMs,
LongSupplier nowMillis, Runnable sleeper,
Path configRoot, Path discoveryRoot,
Supplier<FleetConfig.Fleet> fleet) {
Supplier<BridgedConfig.Fleet> fleet) {
super(NAME_PREFIX, agents, spaces, profiles, defaultProfile, env,
spawnReadyTimeoutMs, nowMillis, sleeper, fleet);
this.configRoot = configRoot;
this.discovery = new OpenCodeSessionDiscovery(discoveryRoot);
}
/**
* Full testability constructor, plus the CB-596 {@code memberCredentials} policy supplier.
*/
public OpenCodeLauncher(AgentControl agents, WorkspaceControl spaces,
Map<String, FleetConfig.Profile> profiles, String defaultProfile,
Function<String, String> env,
long spawnReadyTimeoutMs,
LongSupplier nowMillis, Runnable sleeper,
Path configRoot, Path discoveryRoot,
Supplier<FleetConfig.Fleet> fleet,
Supplier<FleetConfig.MemberCredentials> memberCredentials) {
this(agents, spaces, profiles, defaultProfile, env, spawnReadyTimeoutMs, nowMillis, sleeper,
configRoot, discoveryRoot, fleet, memberCredentials, null);
}
/** Full testability constructor, plus the live config for URI environment exclusions. */
public OpenCodeLauncher(AgentControl agents, WorkspaceControl spaces,
Map<String, FleetConfig.Profile> profiles, String defaultProfile,
Function<String, String> env, long spawnReadyTimeoutMs,
LongSupplier nowMillis, Runnable sleeper, Path configRoot, Path discoveryRoot,
Supplier<FleetConfig.Fleet> fleet,
Supplier<FleetConfig.MemberCredentials> memberCredentials,
Supplier<FleetConfig> config) {
super(NAME_PREFIX, agents, spaces, profiles, defaultProfile, env,
spawnReadyTimeoutMs, nowMillis, sleeper, fleet, memberCredentials, null, config);
this.configRoot = configRoot;
this.discovery = new OpenCodeSessionDiscovery(discoveryRoot);
}
private static Path defaultConfigRoot() {
return Path.of(System.getProperty("java.io.tmpdir"));
}
@@ -230,42 +169,15 @@ public final class OpenCodeLauncher extends HerdrPeerLauncher {
* grant; and select the model with {@code -m}.
*/
@Override
protected Launch buildLaunch(FleetConfig.Profile cfg, LaunchSpec spec) {
protected Launch buildLaunch(BridgedConfig.Profile cfg, LaunchSpec spec) {
Map<String, String> workerEnv = baseEnv(cfg);
// autoCompactWindow's opencode lever (limit.context) only targets a specific provider/model
// entry, so it needs model: in "provider/model" form. A profile that opts in without that
// shape gets no silent no-op — log it, once, here, whether or not writeConfig ends up running.
boolean wantsContextLimit = cfg.autoCompactWindow() != null && splitProviderModel(cfg.model()) != null;
if (cfg.autoCompactWindow() != null && !wantsContextLimit) {
log.warn("profile '{}' sets autoCompactWindow but model '{}' is not \"<provider>/<model>\" "
+ "form — opencode's per-model context limit could not be applied for this profile",
cfg.profile(), cfg.model());
}
// A config file is needed for the bridge MCP mount, a member charter, the IDE MCP (+ its
// guidance overlay, CB-634), a pinned endpoint (CB-508), or a resolvable autoCompactWindow.
if (cfg.hasMcp() || cfg.hasIdeMcp() || spec.charter() != null || hasCustomProvider(cfg)
|| wantsContextLimit) {
workerEnv.put("OPENCODE_CONFIG", writeConfig(cfg, spec.charter(), spec.cwd()).toString());
// A config file is needed for the bridge MCP mount, a member charter, or a pinned endpoint (CB-508).
if (cfg.hasMcp() || spec.charter() != null || hasCustomProvider(cfg)) {
workerEnv.put("OPENCODE_CONFIG", writeConfig(cfg, spec.charter()).toString());
}
applyGitToken(workerEnv, cfg);
List<String> argv = argvWithResume(argvWithModel(argvWithAuto(cfg), cfg), spec.resumeSessionId());
return new Launch(workerEnv, argvWithAgent(argv, spec));
}
/**
* The launch argv plus, when the role has an agent-definition file under the worker's cwd,
* opencode's {@code --agent <role>} flag (CB-617). A role with no such file gets nothing added —
* the member must still spawn.
*/
private List<String> argvWithAgent(List<String> argv, LaunchSpec spec) {
Path agentFile = agentDefinitionFile(spec.cwd(), spec.role(), ".opencode", "agent");
if (agentFile == null) {
return argv;
}
List<String> withAgent = mutableArgv(argv);
withAgent.add("--agent");
withAgent.add(spec.role().wireName());
return withAgent;
return new Launch(workerEnv,
argvWithResume(argvWithModel(argvWithAuto(cfg), cfg), spec.resumeSessionId()));
}
/**
@@ -278,7 +190,7 @@ public final class OpenCodeLauncher extends HerdrPeerLauncher {
* primary's Anthropic subscription, and an opencode process has no Anthropic credential path
* at all. Pointing it at a local vLLM cannot leak the subscription.
*/
private static boolean hasCustomProvider(FleetConfig.Profile cfg) {
private static boolean hasCustomProvider(BridgedConfig.Profile cfg) {
return cfg.baseUrl() != null && !cfg.baseUrl().isBlank();
}
@@ -287,12 +199,12 @@ public final class OpenCodeLauncher extends HerdrPeerLauncher {
* permissions opencode does not explicitly deny. It is unconditional, not a preference: a
* spawned peer has no human at its pane — the bridge spawned it — so one that stops at an
* approval prompt is a wedged agent, indistinguishable from a legitimate mid-turn wait and
* unable to end its turn with {@code fleet_reply}. opencode's own help calls this
* unable to end its turn with {@code bridge_reply}. opencode's own help calls this
* "dangerous!", but the blast radius here is already bounded by design: a worker runs in its
* own git worktree on its own branch, is off-subscription, and cannot merge — the lead is the
* gate.
*/
private List<String> argvWithAuto(FleetConfig.Profile cfg) {
private List<String> argvWithAuto(BridgedConfig.Profile cfg) {
List<String> argv = mutableArgv(cfg.argv());
argv.add("--auto");
return argv;
@@ -315,7 +227,7 @@ public final class OpenCodeLauncher extends HerdrPeerLauncher {
}
/** The launch argv plus, when a model is configured, the opencode {@code -m provider/model} flag. */
private List<String> argvWithModel(List<String> argv, FleetConfig.Profile cfg) {
private List<String> argvWithModel(List<String> argv, BridgedConfig.Profile cfg) {
if (cfg.model() != null && !cfg.model().isBlank()) {
argv.add("-m");
argv.add(cfg.model());
@@ -329,16 +241,16 @@ public final class OpenCodeLauncher extends HerdrPeerLauncher {
* {@code OPENCODE_CONFIG}. The dir is unique per spawn so concurrent workers never race on it;
* it is best-effort cleaned on JVM exit (worker config is disposable — regenerated every spawn).
*/
private Path writeConfig(FleetConfig.Profile cfg, String charterText, String cwd) {
private Path writeConfig(BridgedConfig.Profile cfg, String charterText) {
try {
Path dir = Files.createTempDirectory(configRoot, "fleetd-opencode-");
Path dir = Files.createTempDirectory(configRoot, "bridged-opencode-");
dir.toFile().deleteOnExit();
ObjectNode root = JSON.createObjectNode();
root.put("$schema", "https://opencode.ai/config.json");
// CB-523, opencode side: a worker that runs out of context dies mid-turn, and its reply
// — the entire point of the turn — is lost with it. Auto-compaction is therefore not an
// operator preference for a fleetd worker, it is a condition of the turn contract.
// operator preference for a bridged worker, it is a condition of the turn contract.
//
// Stated deliberately even though it is redundant today: OPENCODE_CONFIG is MERGED over
// ~/.config/opencode/config.json rather than replacing it, so a worker already inherits
@@ -347,7 +259,7 @@ public final class OpenCodeLauncher extends HerdrPeerLauncher {
//
// Know the cost before removing it: this key WINS over the home config (verified — an
// OPENCODE_CONFIG value overrides the home value, it does not defer to it), so an
// operator who sets `compaction.auto: false` at home cannot turn it off for fleetd
// operator who sets `compaction.auto: false` at home cannot turn it off for bridged
// workers. That is the intended trade for peers we spawn and whose turns we must land;
// if per-profile control is ever wanted, add a profile knob rather than dropping this.
root.putObject("compaction").put("auto", true);
@@ -360,42 +272,15 @@ public final class OpenCodeLauncher extends HerdrPeerLauncher {
root.putArray("instructions").add(charter.toAbsolutePath().toString());
}
if (cfg.hasMcp() || cfg.hasIdeMcp()) {
// One shared mcp node for both servers — putObject would replace the node (and thus
// the other server) on the second call, so build into a single get-or-create node.
ObjectNode mcp = root.withObject("mcp");
if (cfg.hasMcp()) {
ObjectNode mount = mcp.putObject(PeerLauncher.MCP_MOUNT_NAME);
mount.put("type", "remote");
mount.put("url", cfg.mcpUrl());
mount.put("enabled", true);
}
// CB-634: mount the IDE Index MCP in the same shape as the bridge remote server, and
// deliver its guidance via the instructions array (opencode does not read
// CLAUDE.local.md) rather than any system-prompt string.
if (cfg.hasIdeMcp()) {
ObjectNode ide = mcp.putObject("intellij");
ide.put("type", "remote");
ide.put("url", cfg.ideMcpUrl());
ide.put("enabled", true);
// CB-634: pin the overlay and open the IDE at the module dir (this repo's pom is
// in `fleetd/`, not at the worktree root) — see PeerLauncher.ideProjectPath.
String projectPath = PeerLauncher.ideProjectPath(cwd, cfg.ideProjectDir());
Path rules = dir.resolve("ide-rules.md");
Files.writeString(rules, PeerLauncher.ideOverlayText(projectPath));
rules.toFile().deleteOnExit();
// The array may already hold the member-charter path; withArray gets-or-creates.
root.withArray("instructions").add(rules.toAbsolutePath().toString());
PeerLauncher.openInIde(projectPath, cfg.ideOpenCommand(), log);
}
if (cfg.hasMcp()) {
ObjectNode bridge = root.putObject("mcp").putObject("bridge");
bridge.put("type", "remote");
bridge.put("url", cfg.mcpUrl());
bridge.put("enabled", true);
}
if (hasCustomProvider(cfg)) {
addCustomProvider(root, cfg);
}
if (cfg.autoCompactWindow() != null) {
applyContextLimit(root, cfg);
}
Path cfgFile = dir.resolve("opencode.json");
// Built with Jackson rather than string concatenation: the provider block is nested and
@@ -416,20 +301,20 @@ public final class OpenCodeLauncher extends HerdrPeerLauncher {
* <p>The provider id comes from the {@code provider/model} selector in {@code model:}, so one
* field drives both the declaration and the {@code -m} flag and they cannot drift apart.
*/
private void addCustomProvider(ObjectNode root, FleetConfig.Profile cfg) {
private void addCustomProvider(ObjectNode root, BridgedConfig.Profile cfg) {
String[] parts = splitModelSelector(cfg);
String providerId = parts[0];
String modelId = parts[1];
ObjectNode provider = root.putObject("provider").putObject(providerId);
provider.put("npm", "@ai-sdk/openai-compatible");
provider.put("name", providerId + " (fleetd)");
provider.put("name", providerId + " (bridged)");
ObjectNode options = provider.putObject("options");
options.put("baseURL", openAiBaseUrl(cfg.baseUrl()));
// vLLM and friends usually ignore the key, but the AI SDK still requires a non-empty one.
String token = resolveEnv(cfg.tokenEnv());
options.put("apiKey", (token == null || token.isBlank()) ? "fleetd-local-noauth" : token);
options.put("apiKey", (token == null || token.isBlank()) ? "bridged-local-noauth" : token);
provider.putObject("models").putObject(modelId).put("name", modelId);
}
@@ -439,69 +324,19 @@ public final class OpenCodeLauncher extends HerdrPeerLauncher {
* needs both, so a bare model name is rejected loudly rather than silently falling back to the
* default gateway — a worker quietly talking to the wrong endpoint is the failure this avoids.
*/
private static String[] splitModelSelector(FleetConfig.Profile cfg) {
String[] parts = splitProviderModel(cfg.model());
if (parts == null) {
private static String[] splitModelSelector(BridgedConfig.Profile cfg) {
String model = cfg.model();
int slash = model == null ? -1 : model.indexOf('/');
if (model == null || model.isBlank() || slash <= 0 || slash == model.length() - 1) {
throw new IllegalArgumentException(
"profile " + cfg.profile() + " sets baseUrl (a pinned opencode endpoint) so"
+ " model: must be \"<provider>/<model>\", e.g."
+ " \"local-vllm/deepseek-v4-flash\"; got "
+ (cfg.model() == null ? "null" : '"' + cfg.model() + '"'));
}
return parts;
}
/**
* Split {@code model} into its {@code provider} and {@code model} halves, or {@code null} when
* it is not in that shape (unset/blank, or no non-trailing {@code /}). Unlike
* {@link #splitModelSelector}, non-throwing — callers that only *optionally* need the split
* (autoCompactWindow's context-limit application) use this to fall back to a WARN rather than an
* exception, since a profile without {@code baseUrl} is not required to name a provider/model.
*/
private static String[] splitProviderModel(String model) {
int slash = model == null ? -1 : model.indexOf('/');
if (model == null || model.isBlank() || slash <= 0 || slash == model.length() - 1) {
return null;
+ (model == null ? "null" : '"' + model + '"'));
}
return new String[]{model.substring(0, slash), model.substring(slash + 1)};
}
/**
* Apply the per-profile {@code autoCompactWindow} as opencode's per-model context limit.
*
* <p>opencode has no absolute "compact at N tokens" knob — its {@code compaction} block only
* exposes {@code auto}/{@code prune}/{@code reserved}/{@code tail_turns}/
* {@code preserve_recent_tokens} — so the real lever is the model's own
* {@code provider.<p>.models.<m>.limit.context}, which bounds the window opencode compacts
* <em>within</em> rather than compacting exactly AT it the way Claude Code's {@code --autocompact}
* does.
*
* <p>Uses get-or-create nodes ({@code withObject}) at every level so this MERGES with any provider
* block {@link #addCustomProvider} already wrote for a custom-provider (pinned-endpoint) profile —
* it must never overwrite that block's {@code npm}/{@code name}/{@code options}. For a gateway
* profile (no {@code baseUrl}, so no prior provider block) this writes a partial
* {@code provider.<p>.models.<m>.limit} override, which opencode merges over its own built-in
* provider definition.
*
* <p>opencode's {@code limit} schema requires both {@code context} and {@code output}; there is no
* independent signal for the latter here, so 16384 is written as a safe default (documented in
* {@code fleetd.example.yaml}).
*
* <p>Silently does nothing when {@code model:} is not in {@code provider/model} form — a warning
* for that case is already logged once in {@code buildLaunch}, so this stays quiet rather than
* duplicating it.
*/
private static void applyContextLimit(ObjectNode root, FleetConfig.Profile cfg) {
String[] parts = splitProviderModel(cfg.model());
if (parts == null) {
return;
}
ObjectNode limit = root.withObject("provider").withObject(parts[0])
.withObject("models").withObject(parts[1]).withObject("limit");
limit.put("context", cfg.autoCompactWindow());
limit.put("output", 16384);
}
/**
* The OpenAI-compatible base URL for {@code baseUrl}. A bare {@code host:port} gets {@code /v1}
* appended (where these servers put the API); a URL that already carries a path is taken as-is,
@@ -571,11 +406,6 @@ public final class OpenCodeLauncher extends HerdrPeerLauncher {
// appeared).
return discovery.sessionIdForDirectory(cwd);
}
@Override
public CharterReceipt charterReceipt() {
return delegate.charterReceipt();
}
}
// --- Agent-returning convenience spawns (used by callers/tests that want the herdr Agent) ---
@@ -613,7 +443,7 @@ public final class OpenCodeLauncher extends HerdrPeerLauncher {
/** Whether any configured profile opts into a git-forge token (required for {@link Capability#SELF_PR}). */
private boolean hasGitTokenProfile() {
return profileConfigs().stream().anyMatch(FleetConfig.Profile::hasGitToken);
return profileConfigs().stream().anyMatch(BridgedConfig.Profile::hasGitToken);
}
// --- CB-117 reap predicate (opencode prefix), kept for direct unit testing -----------------
@@ -0,0 +1,122 @@
package dev.ltms.bridged.member;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.stream.Stream;
/**
* Resolves the opencode session id for a bridged worker from opencode's on-disk storage — the
* only place this adapter touches opencode's private layout, and deliberately the <em>only</em>
* class that does.
*
* <p><strong>Why this is isolated behind one seam.</strong> The layout is version-coupled and not a
* stable contract: opencode writes one JSON file per session under
* {@code <storageRoot>/session/<projectID>/<ses_*.json>}, and each record carries a
* {@code "version"} field (e.g. {@code "1.1.31"}), so the exact directory shape, file naming, and
* field names can move between opencode releases. opencode also ships a headless HTTP server that
* may supersede file scanning entirely. Everything this adapter knows about that private storage —
* its shape, naming, and field names — lives here, so a layout change, or a switch to the HTTP
* server, changes exactly one class and nothing in {@link OpenCodeLauncher}.
*
* <p>The determinism that makes this useful is structural, not a guess: every bridged worker runs
* in its own unique git worktree, so the record's {@code directory} (its project root) equals the
* worker's cwd identifies <em>its</em> session unambiguously. We match on {@code directory} rather
* than diffing {@code opencode session list} before/after — that races under concurrent spawns, and
* the CLI listing does not even show the directory.
*
* <p>All reads are best-effort and never throw: a missing or unreadable storage root, a record that
* fails to parse, or a directory with no record yet all yield {@code null}, and the caller (the
* session handle) treats that as "identity not resolved yet" and retries later.
*/
final class OpenCodeSessionDiscovery {
private final Path storageRoot; // e.g. ~/.local/share/opencode (injectable for tests)
private final ObjectMapper json;
OpenCodeSessionDiscovery(Path storageRoot) {
this.storageRoot = storageRoot;
this.json = new ObjectMapper();
}
/**
* The opencode session id whose record references {@code directory} (the worker's cwd), or
* {@code null} when no record matches yet. When several records share the directory — e.g.
* repeated spawns into the same worktree — the <em>most recently modified</em> one wins: it is
* the session the pane most likely corresponds to.
*
* <p>Never throws: a missing {@code storageRoot}, an unreadable/malformed record, or a
* directory that has not been persisted yet all resolve to {@code null} rather than failing a
* spawn. A bridged worker's session record is written lazily (when the session is first
* persisted), so {@code null} here is the normal answer right after the pane is ready, and the
* caller retries later.
*
* @param directory the worker's cwd, as resolved for this spawn
* @return the matching session id, or {@code null} if none is known yet
*/
String sessionIdForDirectory(String directory) {
if (directory == null || directory.isBlank()) {
return null;
}
Path sessionRoot = storageRoot.resolve("session");
if (!Files.isDirectory(sessionRoot)) {
return null;
}
String best = null;
long bestMtime = Long.MIN_VALUE;
try (Stream<Path> projectDirs = Files.list(sessionRoot)) {
for (Path projectDir : projectDirs.filter(Files::isDirectory).toList()) {
try (Stream<Path> records = Files.list(projectDir)) {
for (Path record : records.toList()) {
String id = matchId(record, directory);
if (id == null) {
continue;
}
long mtime = lastModifiedEpochMillis(record);
if (mtime > bestMtime) {
bestMtime = mtime;
best = id;
}
}
} catch (IOException ignored) {
// one project dir unreadable — skip it; another may still match
}
}
} catch (IOException ignored) {
// storage root vanished or became unreadable — "no session known yet"
return null;
}
return best;
}
/**
* The record's session id when it references {@code directory}, else {@code null}. A record
* that is not JSON, lacks {@code id}/{@code directory}, or points at a different directory is
* simply not our session; a malformed one is skipped, never fatal.
*/
private String matchId(Path record, String directory) {
try {
JsonNode node = json.readTree(record.toFile());
JsonNode id = node == null ? null : node.get("id");
JsonNode dir = node == null ? null : node.get("directory");
if (id == null || dir == null || !directory.equals(dir.asText())) {
return null;
}
return id.asText();
} catch (IOException e) {
return null;
}
}
/** The record's last-modified epoch ms, or {@code Long.MIN_VALUE} if unreadable (never wins). */
private static long lastModifiedEpochMillis(Path record) {
try {
return Files.getLastModifiedTime(record).toMillis();
} catch (IOException e) {
return Long.MIN_VALUE;
}
}
}
@@ -1,8 +1,8 @@
package dev.ltms.fleet.metrics;
package dev.ltms.bridged.metrics;
import dev.ltms.fleet.msg.ReplyInbox;
import dev.ltms.fleet.session.SessionManager;
import dev.ltms.fleet.session.MemberSession;
import dev.ltms.bridged.msg.ReplyInbox;
import dev.ltms.bridged.session.SessionManager;
import dev.ltms.bridged.session.MemberSession;
import java.util.LinkedHashMap;
import java.util.Map;
@@ -13,33 +13,33 @@ import java.util.Map;
*
* <p>The set is deliberately small: each series maps to a failure mode this project has actually
* hit, not to whatever was easy to count. The two worth watching in practice are
* {@code fleet_sends_total{outcome="completion_fallback"}} — a rising share means turn detection
* {@code bridged_sends_total{outcome="completion_fallback"}} — a rising share means turn detection
* is degrading, the CB-115/116/118 failure family — and
* {@code fleet_push_nudges_total{outcome="exhausted"}}, which means the primary stopped draining
* {@code bridged_push_nudges_total{outcome="exhausted"}}, which means the primary stopped draining
* its inbox and CB-307's active push gave up.
*/
public final class FleetMetrics {
public final class BridgedMetrics {
/** Counter: delegated sends by terminal outcome. */
public static final String SENDS = "fleet_sends_total";
public static final String SENDS = "bridged_sends_total";
/** Counter: worker replies by the path that carried them (rendezvous vs stranded-to-inbox). */
public static final String REPLIES = "fleet_replies_total";
public static final String REPLIES = "bridged_replies_total";
/** Counter: push-loop nudges to the primary, by outcome. */
public static final String PUSH_NUDGES = "fleet_push_nudges_total";
public static final String PUSH_NUDGES = "bridged_push_nudges_total";
/** Counter: idle-lead heartbeat nudges to the lead, by outcome (CB-551). */
public static final String HEARTBEAT_NUDGES = "fleet_lead_heartbeat_nudges_total";
public static final String HEARTBEAT_NUDGES = "bridged_lead_heartbeat_nudges_total";
/** Counter: spawn attempts by peer kind and outcome. */
public static final String SPAWNS = "fleet_spawns_total";
public static final String SPAWNS = "bridged_spawns_total";
/** Counter: herdr socket calls by method and outcome. */
public static final String HERDR_CALLS = "fleet_herdr_calls_total";
public static final String HERDR_CALLS = "bridged_herdr_calls_total";
/** Counter: rejected requests by reason (CB-501). */
public static final String AUTH_FAILURES = "fleet_auth_failures_total";
public static final String AUTH_FAILURES = "bridged_auth_failures_total";
/** Gauge: session census by lifecycle state. */
public static final String SESSIONS = "fleet_sessions";
public static final String SESSIONS = "bridged_sessions";
/** Gauge: undrained replies held per target. */
public static final String INBOX_DEPTH = "fleet_inbox_depth";
public static final String INBOX_DEPTH = "bridged_inbox_depth";
private FleetMetrics() {
private BridgedMetrics() {
}
/**
@@ -1,4 +1,4 @@
package dev.ltms.fleet.metrics;
package dev.ltms.bridged.metrics;
import java.util.Map;
import java.util.NavigableMap;
@@ -0,0 +1,242 @@
package dev.ltms.bridged.msg;
import com.rabbitmq.client.AMQP;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;
import com.rabbitmq.client.DeliverCallback;
import com.rabbitmq.client.Recoverable;
import com.rabbitmq.client.RecoveryListener;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.concurrent.ConcurrentHashMap;
/**
* AMQP-backed {@link ReplyInbox} (CB-307 Stage 2): genuine cross-restart durability behind the same
* port {@link InMemoryReplyInbox} implements as soft state.
*
* <p><strong>Mapping — consume-and-hold with deferred manual ack.</strong> Each target has a durable
* queue {@code agent.<target>.inbox}. The gateway that owns the target starts a manual-ack consumer
* ({@link #own}) that pulls persistent messages off that queue into an in-memory <em>held</em> map
* (keyed by {@code msgId}) but does <em>not</em> ack them. {@link #peek} returns that snapshot;
* {@link #ack} acks the broker delivery-tag and drops the entry. Because messages stay unacked until
* the owning gateway actually drains them, a crash (or a {@code java -jar} bounce) before caller-ack
* leaves them on the broker — it redelivers on reconnect. That is the durability the in-memory
* adapter cannot give, with the port contract preserved.
*
* <p><strong>Ownership is explicit.</strong> {@link #own} declares the queue and starts the consumer;
* {@link #release} cancels it. {@link #publish} sends to the queue but does <em>not</em> imply ownership
* and does not attach a consumer. This split is required by CB-308 federation, where one gateway may
* publish to an agent owned by another gateway; in that case the publisher must not compete for
* deliveries.
*
* <p><strong>Dedup.</strong> The consumer keys the held map by {@code msgId}; a redelivered duplicate
* (at-least-once, or a producer double-publish) is acked-and-dropped on arrival, so it never
* double-queues.
*
* <p><strong>Visibility.</strong> Unlike the in-memory adapter, publish → broker → consumer is
* asynchronous, so a {@link #peek} immediately after {@link #publish} may not yet see the message
* (broker delivery latency). Callers that need the reply drained poll (as the primary already does);
* the contract test waits for visibility. This is inherent to broker-backed delivery, not a defect.
*
* <p>The default deploy targets LavinMQ; a stock RabbitMQ speaks the same AMQP 0-9-1 (URI-only swap),
* so the {@code @Tag("contract")} integration test runs against a RabbitMQ container.
*/
public final class AmqpReplyInbox implements ReplyInbox, AutoCloseable {
private static final Logger log = LoggerFactory.getLogger(AmqpReplyInbox.class);
private static final String QUEUE_PREFIX = "agent.";
private static final String QUEUE_SUFFIX = ".inbox";
private final Connection connection;
private final Channel channel;
/** All channel operations (publish/declare/ack/cancel) serialize on this — a Channel is not thread-safe. */
private final Object channelLock = new Object();
/** target → (msgId → held delivery). Per-target map is guarded by synchronizing on itself. */
private final ConcurrentHashMap<String, LinkedHashMap<String, Held>> held = new ConcurrentHashMap<>();
/** Targets whose queue is declared and consumer is running, mapped to their broker consumer tag. */
private final ConcurrentHashMap<String, String> consumerTags = new ConcurrentHashMap<>();
/** A message pulled off the broker but not yet acked: its delivery-tag plus the port payload. */
private record Held(long deliveryTag, InboxMessage message) {}
/** Connect to {@code uri} (e.g. {@code amqp://guest:guest@127.0.0.1:5672/}) and open the inbox. */
public static AmqpReplyInbox open(String uri) {
try {
ConnectionFactory factory = new ConnectionFactory();
factory.setUri(uri);
// Self-heal transient blips; topology recovery re-declares queues and re-attaches consumers.
factory.setAutomaticRecoveryEnabled(true);
factory.setTopologyRecoveryEnabled(true);
return new AmqpReplyInbox(factory.newConnection("bridged-reply-inbox"));
} catch (Exception e) {
throw new IllegalStateException("cannot connect to AMQP broker at " + uri, e);
}
}
/** Wrap an already-open connection (injection seam for the contract test). */
AmqpReplyInbox(Connection connection) {
this.connection = connection;
try {
this.channel = connection.createChannel();
} catch (IOException e) {
throw new IllegalStateException("cannot open AMQP channel", e);
}
// On automatic recovery the broker redelivers unacked messages with FRESH delivery-tags; the
// tags we were holding are now stale. Drop the held snapshot so the re-attached consumer
// repopulates it with valid tags (dedup by msgId still prevents any double-queue).
if (connection instanceof Recoverable recoverable) {
recoverable.addRecoveryListener(new RecoveryListener() {
@Override
public void handleRecovery(Recoverable recoverable) {
held.clear();
log.info("AMQP connection recovered; cleared held replies for fresh redelivery");
}
@Override
public void handleRecoveryStarted(Recoverable recoverable) {
// no-op: we act once recovery completes
}
});
}
}
@Override
public void own(String target) {
synchronized (channelLock) {
if (consumerTags.containsKey(target)) {
return; // already owning this target
}
String queue = queueName(target);
try {
channel.queueDeclare(queue, true, false, false, null); // durable, non-exclusive, keep on idle
String tag = channel.basicConsume(queue, false, deliverCallback(target), _ -> { });
consumerTags.put(target, tag);
log.debug("AMQP inbox owns queue {} for target {}", queue, target);
} catch (IOException e) {
throw new IllegalStateException("cannot own queue " + queue, e);
}
}
}
@Override
public void release(String target) {
synchronized (channelLock) {
String tag = consumerTags.remove(target);
held.remove(target); // stale delivery tags must not survive release
if (tag == null) {
return;
}
try {
channel.basicCancel(tag);
} catch (IOException e) {
throw new IllegalStateException("cannot cancel consumer for " + target, e);
}
}
}
@Override
public void publish(String target, String msgId, String content) {
AMQP.BasicProperties props = new AMQP.BasicProperties.Builder()
.messageId(msgId)
.deliveryMode(2) // persistent — survives a broker restart
.contentType("text/plain")
.build();
try {
synchronized (channelLock) {
channel.basicPublish("", queueName(target), props, content.getBytes(StandardCharsets.UTF_8));
}
} catch (IOException e) {
throw new IllegalStateException("cannot publish reply to " + queueName(target), e);
}
}
@Override
public List<InboxMessage> peek(String target) {
var perTarget = held.get(target);
if (perTarget == null) {
return List.of();
}
synchronized (perTarget) {
return perTarget.values().stream().map(Held::message).toList();
}
}
@Override
public void ack(String target, String msgId) {
var perTarget = held.get(target);
if (perTarget == null) {
return;
}
Held h;
synchronized (perTarget) {
h = perTarget.remove(msgId);
}
if (h == null) {
return; // never held (or already acked) — no-op
}
try {
synchronized (channelLock) {
channel.basicAck(h.deliveryTag(), false);
}
} catch (IOException e) {
// Ack didn't reach the broker: restore the entry so a later ack (or a redelivery after
// reconnect) can retry. Keeps the at-least-once contract — a reply is never silently lost.
synchronized (perTarget) {
perTarget.putIfAbsent(msgId, h);
}
throw new IllegalStateException("cannot ack reply " + msgId + " on " + queueName(target), e);
}
}
private DeliverCallback deliverCallback(String target) {
return (_, delivery) -> {
String msgId = delivery.getProperties().getMessageId();
long tag = delivery.getEnvelope().getDeliveryTag();
if (msgId == null || msgId.isBlank()) {
msgId = Long.toHexString(tag); // synthesize an id so dedup still has a key
}
String content = new String(delivery.getBody(), StandardCharsets.UTF_8);
var perTarget = held.computeIfAbsent(target, _ -> new LinkedHashMap<>());
boolean duplicate;
synchronized (perTarget) {
if (perTarget.containsKey(msgId)) {
duplicate = true;
} else {
perTarget.put(msgId, new Held(tag, new InboxMessage(msgId, target, content)));
duplicate = false;
}
}
if (duplicate) {
// Redelivered duplicate: ack the new tag and drop it so the broker stops resending.
synchronized (channelLock) {
channel.basicAck(tag, false);
}
}
};
}
private static String queueName(String target) {
return QUEUE_PREFIX + target + QUEUE_SUFFIX;
}
@Override
public void close() {
try {
channel.close();
} catch (Exception e) {
log.debug("AMQP channel close: {}", e.toString());
}
try {
connection.close();
} catch (Exception e) {
log.debug("AMQP connection close: {}", e.toString());
}
}
}
@@ -1,4 +1,4 @@
package dev.ltms.fleet.msg;
package dev.ltms.bridged.msg;
import java.util.LinkedHashMap;
import java.util.List;
@@ -16,7 +16,7 @@ import java.util.concurrent.ConcurrentHashMap;
* non-broker path stays interchangeable.
*
* <p><strong>This is soft-state, NOT persistence.</strong> Lost on a {@code java -jar} bounce — that
* is correct and consistent with "fleetd stays soft-state." The Stage-2 AMQP adapter replaces this.
* is correct and consistent with "bridged stays soft-state." The Stage-2 AMQP adapter replaces this.
*/
public final class InMemoryReplyInbox implements ReplyInbox {
@@ -1,11 +1,11 @@
package dev.ltms.fleet.msg;
package dev.ltms.bridged.msg;
import dev.ltms.fleet.herdr.AgentControl;
import dev.ltms.fleet.herdr.AgentStatus;
import dev.ltms.fleet.mcp.PrimaryRegistry;
import dev.ltms.fleet.metrics.FleetMetrics;
import dev.ltms.fleet.metrics.Metrics;
import dev.ltms.fleet.session.MemberSession;
import dev.ltms.bridged.herdr.AgentControl;
import dev.ltms.bridged.herdr.AgentStatus;
import dev.ltms.bridged.mcp.PrimaryRegistry;
import dev.ltms.bridged.metrics.BridgedMetrics;
import dev.ltms.bridged.metrics.Metrics;
import dev.ltms.bridged.session.MemberSession;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@@ -18,7 +18,7 @@ import java.util.function.Supplier;
/**
* CB-551: an opt-in heartbeat that nudges the single idle lead back to work once it has been
* continuously idle past a quiet period with no open {@code fleet_send} driving it.
* continuously idle past a quiet period with no open {@code bridge_send} driving it.
*
* <p>Why this exists: the fleet is ONE lead + architects + workers, so an idle, stalled lead is a
* single point of failure for the fleet's progress. {@link ReplyPushLoop} nudges the lead only when
@@ -99,7 +99,7 @@ public final class LeadHeartbeatLoop {
/** Count one nudge outcome when a registry is wired; a no-op in unit tests. */
private void countNudge(String outcome) {
if (metrics != null) {
metrics.inc(FleetMetrics.HEARTBEAT_NUDGES, "outcome", outcome);
metrics.inc(BridgedMetrics.HEARTBEAT_NUDGES, "outcome", outcome);
}
}
@@ -290,7 +290,7 @@ public final class LeadHeartbeatLoop {
/** The nudge body, phrased for the two cases the heartbeat distinguishes. */
String nudgeText() {
StringBuilder sb = new StringBuilder(
"Heartbeat: you are idle and no fleet_send is waiting on you.");
"Heartbeat: you are idle and no bridge_send is waiting on you.");
if (hasPending()) {
sb.append(" The fleet has state to collect: ").append(pendingDetail());
} else {
@@ -309,10 +309,10 @@ public final class LeadHeartbeatLoop {
.append(" pending collection");
if (!replyTargets.isEmpty()) {
// Render each as the exact command so the lead can act without parsing: the nearest
// analogue to ReplyPushLoop's fleet_poll(target=...) nudge.
// analogue to ReplyPushLoop's bridge_poll(target=...) nudge.
sb.append(" (")
.append(String.join(", ",
replyTargets.stream().map(t -> "fleet_poll(target=" + t + ")").toList()))
replyTargets.stream().map(t -> "bridge_poll(target=" + t + ")").toList()))
.append(")");
}
sb.append(", ").append(doneSessions).append(" DONE session").append(doneSessions == 1 ? "" : "s")
@@ -1,11 +1,10 @@
package dev.ltms.fleet.msg;
package dev.ltms.bridged.msg;
import dev.ltms.fleet.herdr.AgentControl;
import dev.ltms.fleet.herdr.AgentStatus;
import dev.ltms.fleet.herdr.HerdrRouter;
import dev.ltms.fleet.inject.Injector;
import dev.ltms.fleet.metrics.FleetMetrics;
import dev.ltms.fleet.metrics.Metrics;
import dev.ltms.bridged.herdr.AgentControl;
import dev.ltms.bridged.herdr.AgentStatus;
import dev.ltms.bridged.inject.Injector;
import dev.ltms.bridged.metrics.BridgedMetrics;
import dev.ltms.bridged.metrics.Metrics;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@@ -21,11 +20,10 @@ import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import java.util.concurrent.atomic.AtomicLong;
import java.util.concurrent.locks.ReentrantLock;
import java.util.function.LongSupplier;
/**
* The blocking delegation feature (CB-104): deliver {@code content} into a worker and block until
* the worker returns a <em>structured reply</em> via {@code fleet_reply} (the {@link Rendezvous}),
* the worker returns a <em>structured reply</em> via {@code bridge_reply} (the {@link Rendezvous}),
* then hand that reply back. Delivery is the {@link Injector}'s job (the background poller sends it
* when the worker is injectable); this service never drives the injector or scrapes the terminal —
* completion is the worker's explicit reply, not a guess about {@code agent_status}.
@@ -54,19 +52,15 @@ public final class MessageService {
*/
private static final long ASYNC_TIMEOUT_MS = 30 * 60 * 1_000L;
/**
* How long a finished (terminal) ticket is retained for polling before it is pruned. Package-
* private (not {@code private}) so a test can advance an injected clock past it deterministically
* instead of duplicating the magic number or sleeping for real.
*/
static final long TICKET_TTL_NANOS = 10 * 60 * 1_000_000_000L;
/** How long a finished (terminal) ticket is retained for polling before it is pruned. */
private static final long TICKET_TTL_NANOS = 10 * 60 * 1_000_000_000L;
/** Outcome of a blocking send. */
public enum Outcome {
/** The worker called {@code fleet_reply}; {@code text} holds the structured answer. */
/** The worker called {@code bridge_reply}; {@code text} holds the structured answer. */
REPLIED,
/**
* The worker's delegated turn finished without a {@code fleet_reply} (CB-106 fallback);
* The worker's delegated turn finished without a {@code bridge_reply} (CB-106 fallback);
* {@code text} is the scraped transcript tail rather than a structured answer.
*/
COMPLETED_UNREPLIED,
@@ -75,14 +69,6 @@ public final class MessageService {
* failure context (e.g. the error screen). Terminal, but not a successful completion.
*/
WORKER_FAILED,
/**
* The turn finished without a {@code fleet_reply} and the scrape matched the backend's
* configured usage-limit refusal pattern (CB-578 stage A); {@code text} is the reason,
* carrying the matched line. The worker's pane is healthy — only its account is refusing —
* so this is never reported as a completed reply, and is kept distinct from
* {@link #WORKER_FAILED} (a wedged worker) and a session simply going {@code GONE}.
*/
BACKEND_EXHAUSTED,
/**
* The worker paused mid-turn to ask the primary a question (CB-205); {@code text} is the
* question and {@code turnId} correlates the answer. Not terminal — the primary answers with
@@ -97,14 +83,14 @@ public final class MessageService {
BUSY,
/**
* An answer ({@link #answer(String, String, long)}) referenced a {@code turnId} that is no
* longer open — the worker's {@code fleet_ask} already timed out or was answered.
* longer open — the worker's {@code bridge_ask} already timed out or was answered.
*/
STALE_TURN
}
/**
* @param outcome how the send ended (or paused)
* @param text the worker's answer when {@link #completed()} (a structured {@code fleet_reply}
* @param text the worker's answer when {@link #completed()} (a structured {@code bridge_reply}
* for {@link Outcome#REPLIED}, a scraped transcript tail for
* {@link Outcome#COMPLETED_UNREPLIED}), or the question for {@link Outcome#QUESTION},
* else {@code null}
@@ -123,7 +109,7 @@ public final class MessageService {
}
}
/** How a worker's {@code fleet_ask} (CB-205) resolved. */
/** How a worker's {@code bridge_ask} (CB-205) resolved. */
public enum AskOutcome {
/** The primary answered; {@link AskResult#answer} carries it. */
ANSWERED,
@@ -133,7 +119,7 @@ public final class MessageService {
TIMED_OUT
}
/** The outcome of a worker's {@code fleet_ask}: how it resolved and (if answered) the answer. */
/** The outcome of a worker's {@code bridge_ask}: how it resolved and (if answered) the answer. */
public record AskResult(AskOutcome outcome, String answer) {
}
@@ -141,7 +127,7 @@ public final class MessageService {
public enum Phase {
/** Delegated and in flight — queued for the worker or being worked. */
PENDING,
/** The worker is paused in {@code fleet_ask}; {@link TaskView#reply} and {@link TaskView#turnId} identify it. */
/** The worker is paused in {@code bridge_ask}; {@link TaskView#reply} and {@link TaskView#turnId} identify it. */
ASKING,
/** The worker's turn finished; {@link TaskView#reply} holds the answer. */
DONE,
@@ -154,7 +140,7 @@ public final class MessageService {
*
* @param reply the answer when {@link #phase} is {@link Phase#DONE}, or the question when
* {@link #phase} is {@link Phase#ASKING}; otherwise {@code null}
* @param replySource {@code "reply"} (structured {@code fleet_reply}) or {@code "transcript"}
* @param replySource {@code "reply"} (structured {@code bridge_reply}) or {@code "transcript"}
* (completion scrape) when {@link Phase#DONE}, else {@code null}
* @param detail a human note (live worker status while pending, ask state, or failure reason)
* @param turnId correlation id for an {@link Phase#ASKING} ticket, else {@code null}
@@ -165,75 +151,30 @@ public final class MessageService {
/** An in-flight or finished async delegation, keyed by its ticket. */
private static final class Task {
private final String ticket;
private final String target;
private final CompletableFuture<Reply> future = new CompletableFuture<>();
/**
* When {@link #future} resolved, or {@code null} while it is still pending — the clock
* {@link #pruneTerminalTickets} measures the TTL from (#197). Deliberately a boxed
* {@code Long} rather than a {@code long} with a sentinel: {@link System#nanoTime} may
* legitimately return any value, zero and negatives included, so no numeric sentinel can mean
* "not stamped yet". Stamped by a {@code whenComplete} hook registered in the constructor, so
* every completion path stamps it — a reply, the completion fallback, a timeout, a failure,
* or an abandon on teardown — without each of those having to remember to.
*/
private volatile Long completedNanos;
private final long createdNanos = System.nanoTime();
private volatile Reply question;
private volatile String turnId;
private Task(String ticket, String target, LongSupplier nowNanos) {
this.ticket = ticket;
private Task(String target) {
this.target = target;
future.whenComplete((reply, ex) -> completedNanos = nowNanos.getAsLong());
}
}
/**
* A worker session's currently-open {@code fleet_ask} question, surfaced so {@code fleet_status}
* can show it without the caller needing the ticket first (CB-582). Only covers async
* (fire-and-poll) delegations, which track the question on their {@link Task}; a blocking
* ({@code wait:true}) send already hands the question straight back to its own caller, so there is
* nothing hidden left for {@code fleet_status} to surface in that case.
*/
public record PendingAsk(String ticket, String question, String turnId) {
}
private final AgentControl agents;
private final HerdrRouter router;
private final Injector injector;
private final Rendezvous rendezvous;
private final ReplyInbox inbox;
private final ReplyPushLoop pushLoop;
private final Metrics metrics; // CB-502: nullable — no registry in unit tests
// CB-588: injectable so pruneTerminalTickets' 10-minute TICKET_TTL_NANOS can be exercised in a
// test without a real wait — same seam SessionManager already uses for its idle reaper (nowNanos).
private final LongSupplier nowNanos;
private final ConcurrentHashMap<String, ReentrantLock> sessionLocks = new ConcurrentHashMap<>();
private final ConcurrentHashMap<String, Task> tasks = new ConcurrentHashMap<>();
/** Async task that owns each exact forward rendezvous waiter. */
private final ConcurrentHashMap<CompletableFuture<Rendezvous.Resolution>, Task> asyncTasksByWaiter =
new ConcurrentHashMap<>();
/** Async tickets paused on a specific {@code fleet_ask} turn. */
/** Async tickets paused on a specific {@code bridge_ask} turn. */
private final ConcurrentHashMap<String, Task> asyncTasksByTurn = new ConcurrentHashMap<>();
/**
* Targets whose most recent {@code fleet_reply} arrived with no send awaiting it (CB-640) —
* {@link Rendezvous#resolve} returned {@code false} and the reply was queued into the inbox
* instead (see {@link #reply}). The reply itself is not lost (it sits in the inbox for a
* later drain), but the stranding is a fact the health layer needs to see. Bounded by the
* target's own lifecycle rather than a TTL: an entry is cleared the next time this target's
* delivery is accepted ({@link #send}) or the target is torn down ({@link #abandon}), so the
* map holds at most one entry per session with an unresolved stranding right now.
*/
private final ConcurrentHashMap<String, Boolean> strandedReplies = new ConcurrentHashMap<>();
/**
* Targets whose last send timed out with {@link Outcome#TIMED_OUT_QUEUED} (CB-640) — the
* message never reached the {@link Injector} delivery window before the caller's deadline, so
* it is still sitting in the injector's own per-target queue. Set where {@link #send} already
* computes {@code wasDelivered} for that outcome; no new queue is kept here, only the fact.
* Cleared the same way as {@link #strandedReplies}: the next accepted delivery for the target
* ({@link #send} opening a fresh waiter) or a teardown ({@link #abandon}).
*/
private final ConcurrentHashMap<String, Boolean> queuedDeliveries = new ConcurrentHashMap<>();
private final AtomicLong ticketSeq = new AtomicLong();
private final ExecutorService asyncExecutor = Executors.newThreadPerTaskExecutor(
Thread.ofVirtual().name("bridge-async-", 0).factory());
@@ -242,11 +183,7 @@ public final class MessageService {
* Create with an explicit {@link ReplyInbox} and optional {@link ReplyPushLoop}.
*
* @param pushLoop nullable — when non-null, the push loop is notified on the no-waiter reply
* branch ({@link #reply}) so it can nudge the primary to drain the inbox,
* (CB-588) whenever an async ticket started by {@link #sendAsync} reaches a
* terminal phase, whenever {@link #poll} hands a terminal ticket to its caller,
* and (CB-582) whenever an async ticket's worker pauses mid-turn in
* {@code fleet_ask} or that pause ends (answered or lapsed)
* branch ({@link #reply}) so it can nudge the primary to drain the inbox
*/
public MessageService(AgentControl agents, Injector injector, Rendezvous rendezvous,
ReplyInbox inbox, ReplyPushLoop pushLoop) {
@@ -261,36 +198,14 @@ public final class MessageService {
*/
public MessageService(AgentControl agents, Injector injector, Rendezvous rendezvous,
ReplyInbox inbox, ReplyPushLoop pushLoop, Metrics metrics) {
this(agents, injector, rendezvous, inbox, pushLoop, metrics, System::nanoTime);
}
/** Test constructor with an injectable clock (CB-588: exercise the ticket-prune TTL without a real wait). */
MessageService(AgentControl agents, Injector injector, Rendezvous rendezvous, ReplyInbox inbox,
ReplyPushLoop pushLoop, Metrics metrics, LongSupplier nowNanos) {
this.agents = agents;
this.router = null;
this.injector = injector;
this.rendezvous = rendezvous;
this.inbox = inbox;
this.pushLoop = pushLoop;
this.metrics = metrics;
this.nowNanos = nowNanos;
}
public MessageService(HerdrRouter router, Injector injector, Rendezvous rendezvous, ReplyInbox inbox,
ReplyPushLoop pushLoop, Metrics metrics) {
this.agents = null;
this.router = router;
this.injector = injector;
this.rendezvous = rendezvous;
this.inbox = inbox;
this.pushLoop = pushLoop;
this.metrics = metrics;
this.nowNanos = System::nanoTime;
}
private AgentControl agentsFor(String target) { return router != null ? router.agentsFor(target) : agents; }
/** Create with an explicit {@link ReplyInbox} and no push loop. */
public MessageService(AgentControl agents, Injector injector, Rendezvous rendezvous, ReplyInbox inbox) {
this(agents, injector, rendezvous, inbox, null);
@@ -303,7 +218,7 @@ public final class MessageService {
/** Current lifecycle status of a worker (the {@code GET /sessions/{id}/status} surface). */
public AgentStatus status(String target) {
return agentsFor(target).status(target);
return agents.status(target);
}
/** Read-only delegation fact for fleet views. */
@@ -317,120 +232,31 @@ public final class MessageService {
}
/**
* Read-only delegation fact for fleet views (CB-640): {@code target}'s last send timed out
* before the {@link Injector} ever delivered it — the caller saw
* {@link Outcome#TIMED_OUT_QUEUED} (see the {@code TimeoutException} branch of {@link #send}),
* and the message is still sitting in the injector's per-target queue waiting for the worker
* to go idle. Distinct from {@link Outcome#TIMED_OUT_WORKING}, where delivery already happened
* and only the reply is outstanding. Cleared the next time this target's delivery is accepted
* or the target is abandoned — see {@link #queuedDeliveries}.
*/
public boolean hasQueuedDelivery(String target) {
return target != null && queuedDeliveries.containsKey(target);
}
/**
* Read-only delegation fact for fleet views (CB-640): {@code target}'s last {@code fleet_reply}
* arrived while no send was waiting for it, so {@link Rendezvous#resolve} returned
* {@code false} and {@link #reply} fell back to queueing it in the inbox (see the CB-307
* javadoc there and {@code docs/CB-307-Reliable-Delivery.md} §1). Cleared the next time this
* target's delivery is accepted or the target is abandoned — see {@link #strandedReplies}.
*/
public boolean hasStrandedReply(String target) {
return target != null && strandedReplies.containsKey(target);
}
/**
* Read-only delegation fact for fleet views (CB-640): an async ticket is still
* {@link Phase#PENDING} against {@code target}, yet nothing is actually in flight for it — no
* open rendezvous waiter ({@link #hasAcceptedDelivery}) and no message still sitting in the
* injector's queue ({@link #hasQueuedDelivery}). A healthy PENDING ticket can briefly look this
* way while its virtual thread has not yet been scheduled or is blocked on the session lock
* behind another send to the same target, so this is a snapshot fact for the health classifier
* to weigh across ticks, not proof on its own that the ticket is stuck. It also genuinely
* persists — not just as a passing race — once an async {@code fleet_ask} lapses unanswered:
* {@link #ask} clears the ticket's question and returns it to {@code PENDING}, but {@link #send}
* already closed the forward waiter the instant the question surfaced, so the target has
* neither an accepted nor a queued delivery left to show for it.
*/
public boolean hasOrphanedDelegation(String target) {
if (target == null || hasAcceptedDelivery(target) || hasQueuedDelivery(target)) {
return false;
}
for (Task task : tasks.values()) {
if (target.equals(task.target) && task.question == null && !task.future.isDone()) {
return true;
}
}
return false;
}
/**
* Route a worker's explicit {@code fleet_reply}: resolve an open send, complete an async ticket
* still parked waiting on this exact turn's answer, or — only once neither applies — queue it in
* the inbox. Unlike the bare {@link Rendezvous#resolve}, a no-waiter result is <em>not</em> a
* failure — the reply is held for later drain.
* Route a worker's explicit {@code bridge_reply}: resolve an open send, or queue it in the
* inbox if no send is currently open. Unlike the bare {@link Rendezvous#resolve}, a no-waiter
* result is <em>not</em> a failure — the reply is held for later drain.
*
* <p><strong>Do NOT use this for mid-turn questions.</strong> {@code fleet_ask} /
* <p><strong>Do NOT use this for mid-turn questions.</strong> {@code bridge_ask} /
* {@link Rendezvous#resolveQuestion} must keep today's {@code NO_WAITER} behaviour — questions
* are interactive and must never be queued.
*
* @return always {@code true} — the reply resolved a live send, completed a parked ticket, or
* was queued
* @return always {@code true} — the reply either resolved a live send or was queued
*/
public boolean reply(String session, String content) {
if (rendezvous.resolve(session, content)) {
count(FleetMetrics.REPLIES, "path", "rendezvous");
count(BridgedMetrics.REPLIES, "path", "rendezvous");
return true; // a live send took it — unchanged fast path
}
// #137: no live rendezvous waiter, but this may be the worker's real fleet_reply resuming a
// turn that {@link #answer} already gave up waiting on. answer()'s own bounded wait (the
// primary's fleet_send{turnId} call, capped well under a minute) can time out and close its
// waiter long before the worker — now actually resuming real work — finishes and replies. That
// reply used to have nowhere to land but the session inbox, leaving the async ticket's future
// unresolved forever: fleet_poll{ticket} stayed PENDING until fleet_stop's abandon() forced it
// FAILED with a misleading "session released before it replied" reason, even though the reply
// had, in fact, arrived. Completing the matching ticket directly here means fleet_poll{ticket}
// sees the real reply instead.
Task orphan = askAnsweredAsyncTask(session);
if (orphan != null && orphan.future.complete(new Reply(Outcome.REPLIED, content))) {
if (orphan.turnId != null) {
asyncTasksByTurn.remove(orphan.turnId, orphan);
}
count(FleetMetrics.REPLIES, "path", "async-recovered");
return true; // the ticket itself took it — no inbox stranding at all
}
inbox.publish(session, UUID.randomUUID().toString(), content);
// CB-640: record the stranding itself (not just the reply text) so fleet health can see a
// worker whose replies keep missing their waiter, not only the queue depth this leaves behind.
strandedReplies.put(session, Boolean.TRUE);
// A rising inbox share is the signal CB-307 exists to make visible: the worker finished but
// nobody was waiting, so delivery now depends on the push loop and a drain.
count(FleetMetrics.REPLIES, "path", "inbox");
count(BridgedMetrics.REPLIES, "path", "inbox");
if (pushLoop != null) {
pushLoop.onReplyQueued(session);
}
return true; // held, not lost
}
/**
* The still-open async task on {@code target} whose {@code fleet_ask} was already answered — its
* {@link Task#turnId} is stamped but its {@link Task#question} was cleared by {@link #answer} —
* yet whose future is not resolved yet (#137). {@code null} if no such task exists, including the
* common case where {@code target}'s worker never used {@code fleet_ask} at all (a task that was
* never asked has {@code turnId == null}, so it can never match here and only ever completes
* through the ordinary rendezvous fast path in {@link #reply}).
*/
private Task askAnsweredAsyncTask(String target) {
for (Task task : tasks.values()) {
if (target.equals(task.target) && task.question == null && task.turnId != null
&& !task.future.isDone()) {
return task;
}
}
return null;
}
/** Record a counter sample when a registry is wired; a no-op in unit tests. */
private void count(String name, String... labels) {
if (metrics != null) {
@@ -442,7 +268,7 @@ public final class MessageService {
private Reply recorded(Reply r) {
String label = sendOutcomeLabel(r.outcome());
if (label != null) {
count(FleetMetrics.SENDS, "outcome", label);
count(BridgedMetrics.SENDS, "outcome", label);
}
return r;
}
@@ -454,7 +280,6 @@ public final class MessageService {
case COMPLETED_UNREPLIED -> "completion_fallback";
case TIMED_OUT_WORKING, TIMED_OUT_QUEUED, BUSY -> "timeout";
case WORKER_FAILED -> "failed";
case BACKEND_EXHAUSTED -> "backend_exhausted";
case STALE_TURN, QUESTION -> null; // not a completed delegation
};
}
@@ -463,7 +288,7 @@ public final class MessageService {
* Abandon any send still waiting on {@code target} because its session has gone away (CB-516).
*
* <p>Without this, tearing a worker down left its rendezvous waiter open: a blocking
* {@code fleet_send} kept blocking, and an async one kept reporting {@code PENDING} until
* {@code bridge_send} kept blocking, and an async one kept reporting {@code PENDING} until
* {@link #ASYNC_TIMEOUT_MS} — thirty minutes — even though the worker provably no longer
* existed and the delegation could never complete. Worse, {@code poll} already had the evidence
* (it calls {@code liveStatus} to build its detail string and gets back {@code "unknown"}) and
@@ -472,43 +297,16 @@ public final class MessageService {
* <p>Resolving the waiter as a failure — rather than letting it time out — also means the
* outcome is counted, so a torn-down delegation stops being invisible to {@code /metrics}.
*
* <p><strong>#137 defence in depth.</strong> {@link #reply} already hands a worker's real
* {@code fleet_reply} straight to the async ticket it belongs to whenever one is still parked
* waiting for it (see {@link #askAnsweredAsyncTask}), so by the time a session is released its
* tasks are normally already resolved — this loop's {@code complete} calls are then harmless
* no-ops (a {@link CompletableFuture} can only resolve once). But should some other path someday
* strand a reply in the inbox without completing its ticket, checking
* {@link #hasStrandedReply(String)} here — before ever writing a failure — means a torn-down
* session whose worker in fact replied is still reported {@code REPLIED} with that reply's own
* text, never the misleading "the worker session was released before it replied" (which also
* means the snapshot/worktree recovery hint that follows it never prints once a reply exists).
*
* @return true if a live waiter or an async task was failed (never true for one recovered as a
* reply — see the note above)
* @return true if a live waiter was failed
*/
public boolean abandon(String target, String reason) {
boolean hadStrandedReply = hasStrandedReply(target);
// CB-640: the session is gone — nothing will ever accept or deliver into it now.
strandedReplies.remove(target);
queuedDeliveries.remove(target);
CompletableFuture<Rendezvous.Resolution> waiter = rendezvous.currentWaiter(target);
boolean failed = waiter != null && !waiter.isDone() && rendezvous.resolveFailure(waiter, reason);
boolean asyncFailed = false;
Reply recovered = null; // lazily drained at most once, only if a task actually needs it
for (Task task : tasks.values()) {
if (!target.equals(task.target) || task.question != null || task.future.isDone()) {
continue;
}
if (hadStrandedReply && recovered == null) {
recovered = recoverStrandedReply(target);
}
Reply outcome = recovered != null ? recovered : new Reply(Outcome.WORKER_FAILED, reason);
if (task.future.complete(outcome)) {
if (outcome.outcome() == Outcome.WORKER_FAILED) {
asyncFailed = true;
} else if (task.turnId != null) {
asyncTasksByTurn.remove(task.turnId, task);
}
if (target.equals(task.target) && task.question == null
&& task.future.complete(new Reply(Outcome.WORKER_FAILED, reason))) {
asyncFailed = true;
}
}
if (failed) {
@@ -517,21 +315,6 @@ public final class MessageService {
return failed || asyncFailed;
}
/**
* Drain {@code target}'s inbox and hand its content back as a {@link Outcome#REPLIED} result
* (#137 defence in depth for {@link #abandon}) — {@code null} if it turned out empty (the
* stranding fact raced away, e.g. a lead's own {@code fleet_poll} on the raw session already
* drained it first). When more than one message is queued, only the newest is the worker's actual
* final answer ({@link #drainReplies} returns them oldest-first).
*/
private Reply recoverStrandedReply(String target) {
var messages = drainReplies(target);
if (messages.isEmpty()) {
return null;
}
return new Reply(Outcome.REPLIED, messages.get(messages.size() - 1).content());
}
/**
* Acknowledge a specific reply by {@code msgId} for {@code target}. Removes it from the inbox
* so that a subsequent drain or peek no longer returns it.
@@ -541,30 +324,9 @@ public final class MessageService {
}
/**
* Drain (peek + ack) all pending inbox replies for {@code target}.
*
* <p><strong>The ack happens here, before the caller has the messages</strong> — before the MCP
* or REST response carrying them has been written, and long before the client has processed
* them. That ordering is what the two adapters disagree about, so do not read this method as
* "at-least-once" without qualifying which inbox is behind it (CB-529):
*
* <ul>
* <li>{@code InMemoryReplyInbox} — the ack only drops an entry from a local map. The messages
* are already in the returned list, so nothing can be lost after this point.
* <li>{@code AmqpReplyInbox} — the ack is a broker-side {@code basicAck}. Once it lands the
* broker has forgotten the message. If the daemon dies while writing the response, the
* reply is gone from the broker <em>and</em> the client never received it. Re-polling
* cannot recover it, because there is nothing left to re-deliver.
* </ul>
*
* <p>So the loss window is the response write, and it is a genuine loss rather than a
* redelivery. This is accepted, not overlooked: the alternative — ack on the next poll — turns
* every normal drain into a double delivery, which costs more than the window it closes. A
* caller that needs certainty re-polls; that is idempotent for every case except this one.
*
* <p>Any change here must be checked against <em>both</em> adapters. The previous version of
* this javadoc claimed "the ack is local", which was true when only the in-memory inbox existed
* and silently became false when the AMQP adapter landed.
* Drain (peek + ack) all pending inbox replies for {@code target}. At-least-once: returns the
* messages and acknowledges them; an in-flight failure between returning and the caller
* processing them re-surfaces them on a subsequent drain (the ack is local).
*
* @return the drained messages, newest last (FIFO); empty list if none
*/
@@ -622,34 +384,23 @@ public final class MessageService {
// enqueue failure is safely closed by the finally below: nothing is left queued, and the
// failed send leaves no stale waiter behind.
CompletableFuture<Rendezvous.Resolution> reply = rendezvous.open(target);
// CB-640: this send now owns target's delivery, so any earlier stranded-reply or
// still-queued fact no longer describes the live state — clear both rather than let
// them outlive the send that supersedes them.
strandedReplies.remove(target);
queuedDeliveries.remove(target);
try {
if (task != null) {
asyncTasksByWaiter.put(reply, task);
}
TurnToken token = new TurnToken(target, reply);
// The send has won the lock; the accepted-delivery hook records delegator ownership
// here (CB-548). It runs BEFORE enqueue so a throwing hook — onAccepted is now a
// public callback — fails the send without queuing a message that would orphan.
if (onAccepted != null) {
onAccepted.run();
}
CompletableFuture<Void> delivered = injector.enqueue(target, content, token);
CompletableFuture<Void> delivered = injector.enqueue(target, content);
try {
Rendezvous.Resolution r = reply.get(remainingMillis(deadlineNanos), TimeUnit.MILLISECONDS);
return recorded(new Reply(outcomeOf(r.kind()), r.text(), r.turnId()));
} catch (TimeoutException e) {
boolean wasDelivered = delivered.isDone() && !delivered.isCompletedExceptionally();
log.debug("send to {} timed out (delivered={})", target, wasDelivered);
if (!wasDelivered) {
// CB-640: still sitting in the injector's queue, waiting for the member to
// go idle — record the fact for fleet health (see queuedDeliveries).
queuedDeliveries.put(target, Boolean.TRUE);
}
return recorded(new Reply(
wasDelivered ? Outcome.TIMED_OUT_WORKING : Outcome.TIMED_OUT_QUEUED, null));
} catch (ExecutionException e) {
@@ -670,7 +421,7 @@ public final class MessageService {
/**
* A worker's mid-turn question (CB-205 reverse rendezvous): surface {@code question} to the
* primary by resolving its open blocking {@code fleet_send}, then block this (worker) call until
* primary by resolving its open blocking {@code bridge_send}, then block this (worker) call until
* the primary answers via {@link #answer} or {@code timeoutMillis} elapses. Identity is the
* worker's own session — it does not address the primary.
*
@@ -695,21 +446,12 @@ public final class MessageService {
rendezvous.closeAsk(ticket.turnId());
return new AskResult(AskOutcome.NO_WAITER, null); // no primary is blocked on this worker
}
// CB-582: the question just became visible via fleet_poll (Phase.ASKING) for an async
// (wait:false) delegation — nudge the lead's own pane the same way a terminal ticket does
// (CB-588), since the lead's normal poll cadence is minutes away and the reverse-rendezvous
// window (~55s, see FleetMcp/FleetApp) is far shorter. A blocking (wait:true) send has
// no Task and gets the question directly in its own reply, so task == null there — nothing
// to nudge.
if (task != null && pushLoop != null) {
pushLoop.onQuestionOpened(task.ticket, workerSession, ticket.turnId(), question);
}
}
try {
String answer = ticket.answer().get(timeoutMillis, TimeUnit.MILLISECONDS);
return new AskResult(AskOutcome.ANSWERED, answer);
} catch (TimeoutException e) {
log.debug("fleet_ask from {} went unanswered in {}ms", workerSession, timeoutMillis);
log.debug("bridge_ask from {} went unanswered in {}ms", workerSession, timeoutMillis);
clearAsyncQuestion(ticket.turnId(), true);
return new AskResult(AskOutcome.TIMED_OUT, null);
} catch (ExecutionException e) {
@@ -722,26 +464,18 @@ public final class MessageService {
// Only the fresh owner tears down the shared turn; a duplicate must leave it open.
if (ticket.fresh()) {
rendezvous.closeAsk(ticket.turnId());
// CB-582: tear the push loop's copy down at the same point, not only on the three
// paths that call clearAsyncQuestion. The answer future can complete exceptionally
// (ExecutionException) or the thread be interrupted, and both leave this method by
// throwing — the question would stay pending forever, keep being named in nudges
// until its own cap, and never be removed from the map. Already-closed is a no-op.
if (pushLoop != null) {
pushLoop.questionClosed(ticket.turnId());
}
}
}
}
/**
* The primary's answer to a worker's {@code fleet_ask} (CB-205): resolve the worker's blocked
* The primary's answer to a worker's {@code bridge_ask} (CB-205): resolve the worker's blocked
* question identified by {@code turnId}, then — like a fresh {@link #send} — block for the worker's
* eventual {@code fleet_reply} as it finishes the resumed turn. The worker session is derived from
* eventual {@code bridge_reply} as it finishes the resumed turn. The worker session is derived from
* {@code turnId}, never a caller argument.
*
* <p>Unlike {@link #send} this does not re-inject through the {@link Injector}: the worker is
* mid-turn (already picked up), so the answer flows back through its own open {@code fleet_ask}
* mid-turn (already picked up), so the answer flows back through its own open {@code bridge_ask}
* call, not a new status-gated delivery. The forward waiter is opened <em>before</em> the worker
* is unblocked so a reply that lands the instant it resumes is not lost.
*/
@@ -806,24 +540,8 @@ public final class MessageService {
*/
public String sendAsync(String target, String content, Runnable onAccepted) {
String ticket = "task-" + ticketSeq.incrementAndGet();
Task task = new Task(ticket, target, nowNanos);
Task task = new Task(target);
tasks.put(ticket, task);
if (pushLoop != null) {
// CB-588: task.future only ever completes on a terminal phase (DONE or a failure) — a
// worker paused in fleet_ask leaves it running, per finishAsyncTask's own contract — so
// this fires exactly once, from whichever path completes it: finishAsyncTask(task, result)
// below on any non-QUESTION outcome of send() — a worker's fleet_reply, the CB-106
// completion fallback, a CB-109 wedge, TIMED_OUT, BUSY, or BACKEND_EXHAUSTED — the same
// finishAsyncTask reached via answer()'s finishAsyncTask(turnId, result) once a QUESTION
// is resolved, completeExceptionally(t) just below when send() itself throws, or a CB-516
// abandon() on teardown. Without this, MessageService.reply's rendezvous fast path (the
// one an async ticket always takes) never told the push loop anything happened — see the
// class javadoc on sendAsync/CB-107.
task.future.whenComplete((reply, ex) -> {
boolean failed = ex != null || reply == null || !reply.completed();
pushLoop.onTicketTerminal(ticket, target, failed);
});
}
asyncExecutor.submit(() -> {
try {
Reply result = send(target, content, ASYNC_TIMEOUT_MS, onAccepted, task);
@@ -861,11 +579,6 @@ public final class MessageService {
}
return new TaskView(ticket, Phase.PENDING, null, null, "worker " + liveStatus(task.target), null);
}
// CB-588: the ticket is terminal and being handed to the caller right here — tell the push
// loop it is collected so a later tick's nudge never names a ticket the lead already has.
if (pushLoop != null) {
pushLoop.ticketCollected(ticket);
}
Reply r;
try {
r = f.getNow(null);
@@ -877,11 +590,9 @@ public final class MessageService {
String source = r.outcome() == Outcome.REPLIED ? "reply" : "transcript";
return new TaskView(ticket, Phase.DONE, r.text(), source, null, null);
}
// A wedged worker (CB-109) or a backend-exhausted classification (CB-578 stage A) carries
// the real cause as its reason; the timeout/busy outcomes carry none, so fall back to the
// outcome name.
boolean carriesReason = r.outcome() == Outcome.WORKER_FAILED || r.outcome() == Outcome.BACKEND_EXHAUSTED;
String detail = carriesReason && r.text() != null
// A wedged worker (CB-109) carries the error context as its reason; the timeout/busy
// outcomes carry none, so fall back to the outcome name.
String detail = r.outcome() == Outcome.WORKER_FAILED && r.text() != null
? r.text()
: "no reply — " + r.outcome().name().toLowerCase();
return new TaskView(ticket, Phase.FAILED, null, null, detail, null);
@@ -890,46 +601,16 @@ public final class MessageService {
/** Best-effort live worker status for a pending poll; never throws (a lookup error is just noise). */
private String liveStatus(String target) {
try {
return agentsFor(target).status(target).name().toLowerCase();
return agents.status(target).name().toLowerCase();
} catch (RuntimeException e) {
return "unknown";
}
}
/**
* Drop finished tickets older than the TTL so {@link #tasks} cannot grow without bound.
*
* <p>{@code tasks} is the sole authority on whether a ticket still exists — {@link #poll} returns
* {@code null} the instant a ticket is gone from here, before it ever reaches the terminal branch
* that calls {@link ReplyPushLoop#ticketCollected}. Without telling the push loop about a prune
* too, its own {@code pendingTickets} entry would outlive the ticket it names: an unpolled ticket
* (or one the reminder cap already gave up on) is pruned here but never collected there, so it
* lingers in {@code pendingTickets} forever and rides along on every later nudge to the same lead
* — naming a ticket {@code fleet_poll} can no longer find (CB-588 follow-up).
*
* <p>The TTL runs from **completion**, not from creation (#197). It used to compare against
* {@code createdNanos}, which made the real collection window {@code TTL minus however long the
* task ran}: a delegation that took longer than the TTL had its reply destroyed on the first
* sweep after it landed, every time. That is the normal case here — real work runs well past ten
* minutes — and the reply lives only in {@code future}, so pruning it discards the worker's whole
* report with nothing to fall back on. Measuring from completion gives every ticket the same full
* window whatever its runtime, and still bounds {@code tasks}.
*
* <p>A task whose future is done but whose {@code completedNanos} is not stamped yet is left
* alone. That window is the few instructions between {@code complete()} and the constructor's
* {@code whenComplete} hook running; the next sweep collects it.
*/
/** Drop finished tickets older than the TTL so the registry cannot grow without bound. */
private void pruneTerminalTickets() {
long cutoff = nowNanos.getAsLong() - TICKET_TTL_NANOS;
tasks.entrySet().removeIf(e -> {
Task t = e.getValue();
Long completed = t.completedNanos;
boolean expired = t.future.isDone() && completed != null && completed < cutoff;
if (expired && pushLoop != null) {
pushLoop.ticketCollected(e.getKey());
}
return expired;
});
long cutoff = System.nanoTime() - TICKET_TTL_NANOS;
tasks.values().removeIf(t -> t.future.isDone() && t.createdNanos < cutoff);
}
/** Record the active question for an async ticket; blocking sends have no entry and stay unchanged. */
@@ -945,12 +626,6 @@ public final class MessageService {
/** Clear an answered or lapsed question, but only when it matches the ticket's current turn. */
private void clearAsyncQuestion(String turnId, boolean forgetTurn) {
// CB-582: tell the push loop first — like ticketCollected, a removal for a turnId it never
// nudged about (or already dropped) is a harmless no-op, so this is safe to call unconditionally
// rather than threading the guard below through it.
if (pushLoop != null) {
pushLoop.questionClosed(turnId);
}
Task task = asyncTasksByTurn.get(turnId);
if (task != null && turnId.equals(task.turnId)) {
task.question = null;
@@ -982,23 +657,6 @@ public final class MessageService {
return asyncTasksByTurn.values().stream().anyMatch(task -> target.equals(task.target));
}
/**
* The question {@code workerSession} is currently paused on via {@code fleet_ask}, if any
* (CB-582) — {@code fleet_status} uses this to show a pending question without the caller
* needing the ticket. {@code null} when the session has no open async question (including a
* session mid a <em>blocking</em> {@code fleet_ask}, which has no {@link Task} to look up — see
* {@link PendingAsk}).
*/
public PendingAsk pendingAsk(String workerSession) {
for (Task task : tasks.values()) {
Reply q = task.question;
if (q != null && workerSession.equals(task.target)) {
return new PendingAsk(task.ticket, q.text(), q.turnId());
}
}
return null;
}
/** Release the async executor. */
public void close() {
asyncExecutor.shutdown();
@@ -1010,7 +668,6 @@ public final class MessageService {
case REPLY -> Outcome.REPLIED;
case COMPLETION -> Outcome.COMPLETED_UNREPLIED;
case FAILED -> Outcome.WORKER_FAILED;
case BACKEND_EXHAUSTED -> Outcome.BACKEND_EXHAUSTED;
case QUESTION -> Outcome.QUESTION;
};
}
@@ -1,13 +1,13 @@
package dev.ltms.fleet.msg;
package dev.ltms.bridged.msg;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.atomic.AtomicLong;
/**
* The reply rendezvous: where a blocking {@code fleet_send} awaits how the worker's delegated turn
* The reply rendezvous: where a blocking {@code bridge_send} awaits how the worker's delegated turn
* ends. The sending (primary) request thread {@link #open}s a waiter; it is resolved either by the
* worker's explicit {@code fleet_reply} ({@link #resolve}, arriving on a different thread via
* worker's explicit {@code bridge_reply} ({@link #resolve}, arriving on a different thread via
* {@code POST /sessions/{id}/reply}) or — the CB-106 fallback — by the injector observing the
* worker's delegated turn return to idle without a reply ({@link #resolveCompletion}).
*
@@ -27,23 +27,16 @@ public final class Rendezvous {
/** How a delegated turn ended (or paused). */
public enum Kind {
/** The worker called {@code fleet_reply} with a structured answer. */
/** The worker called {@code bridge_reply} with a structured answer. */
REPLY,
/** The worker's turn finished without a {@code fleet_reply}; {@code text} is a scrape. */
/** The worker's turn finished without a {@code bridge_reply}; {@code text} is a scrape. */
COMPLETION,
/** The worker ran the turn then wedged (CB-109); {@code text} is the failure context. */
FAILED,
/**
* The turn finished without a {@code fleet_reply}, and the scrape matched the backend's
* configured usage-limit refusal pattern (CB-578 stage A); {@code text} is the reason,
* carrying the matched line. The pane is healthy — only the account is refusing — so this
* is kept separate from a session simply going {@code GONE}.
*/
BACKEND_EXHAUSTED,
/**
* The worker paused mid-turn to ask the primary a question (CB-205 reverse rendezvous);
* {@code text} is the question and {@code turnId} correlates the primary's answer back to
* the worker's blocked {@code fleet_ask}. Not terminal — the turn resumes after the answer.
* the worker's blocked {@code bridge_ask}. Not terminal — the turn resumes after the answer.
*/
QUESTION
}
@@ -75,7 +68,7 @@ public final class Rendezvous {
/** Reverse rendezvous (CB-205): worker questions awaiting the primary's answer, keyed by {@code turnId}. */
private final ConcurrentHashMap<String, AskWaiter> asks = new ConcurrentHashMap<>();
private final AtomicLong askSeq = new AtomicLong();
/** Per-session index of the currently-open ask, so duplicate fleet_ask calls coalesce onto one turn. */
/** Per-session index of the currently-open ask, so duplicate bridge_ask calls coalesce onto one turn. */
private final ConcurrentHashMap<String, String> openAsksBySession = new ConcurrentHashMap<>();
/**
@@ -132,7 +125,7 @@ public final class Rendezvous {
return complete(session, new Resolution(Kind.REPLY, content));
}
// --- reverse rendezvous (CB-205 fleet_ask) ------------------------------------------------
// --- reverse rendezvous (CB-205 bridge_ask) ------------------------------------------------
/**
* Open a reverse-rendezvous waiter for a worker's mid-turn question. If {@code session} already has
@@ -166,7 +159,7 @@ public final class Rendezvous {
}
/**
* Surface a worker's mid-turn {@code question} by resolving the primary's open {@code fleet_send}
* Surface a worker's mid-turn {@code question} by resolving the primary's open {@code bridge_send}
* with a {@link Kind#QUESTION} carrying {@code turnId}. Same session-keyed semantics as
* {@link #resolve}: the one outstanding send for {@code session} unblocks with the question.
*
@@ -184,7 +177,7 @@ public final class Rendezvous {
}
/**
* Resolve a worker's blocked {@code fleet_ask} with the primary's {@code answer}, unblocking it
* Resolve a worker's blocked {@code bridge_ask} with the primary's {@code answer}, unblocking it
* to resume its turn.
*
* @return {@code true} if the ask was still open and got the answer; {@code false} if the
@@ -195,7 +188,7 @@ public final class Rendezvous {
return w != null && w.answer().complete(answer);
}
/** Drop a reverse-rendezvous turn once its {@code fleet_ask} has resolved (answered or lapsed). */
/** Drop a reverse-rendezvous turn once its {@code bridge_ask} has resolved (answered or lapsed). */
public void closeAsk(String turnId) {
AskWaiter w = asks.get(turnId);
if (w == null) {
@@ -209,9 +202,9 @@ public final class Rendezvous {
/**
* Resolve a specific captured {@code waiter} as a completion (the delegated turn finished with no
* {@code fleet_reply}); {@code text} is the scraped transcript tail. The waiter is the one
* {@code bridge_reply}); {@code text} is the scraped transcript tail. The waiter is the one
* captured when this turn was delivered, so a late completion for turn N cannot land on turn N+1's
* send (CB-116). A no-op if that waiter was already resolved — a raced {@code fleet_reply} wins.
* send (CB-116). A no-op if that waiter was already resolved — a raced {@code bridge_reply} wins.
*
* @return {@code true} if this call resolved the waiter, {@code false} if it was null or already resolved
*/
@@ -231,19 +224,6 @@ public final class Rendezvous {
return waiter != null && waiter.complete(new Resolution(Kind.FAILED, reason));
}
/**
* Resolve a specific captured {@code waiter} as {@link Kind#BACKEND_EXHAUSTED} (CB-578 stage A):
* the turn finished with no {@code fleet_reply} and the scrape matched the backend's configured
* usage-limit pattern; {@code reason} carries the matched line. Like
* {@link #resolveCompletion(CompletableFuture, String)} it targets the exact captured send
* (CB-116). A no-op if that waiter was already resolved — first resolution wins.
*
* @return {@code true} if this call resolved the waiter, {@code false} if it was null or already resolved
*/
public boolean resolveExhausted(CompletableFuture<Resolution> waiter, String reason) {
return waiter != null && waiter.complete(new Resolution(Kind.BACKEND_EXHAUSTED, reason));
}
private boolean complete(String session, Resolution resolution) {
CompletableFuture<Resolution> waiter = waiters.get(session);
return waiter != null && waiter.complete(resolution);
@@ -1,4 +1,4 @@
package dev.ltms.fleet.msg;
package dev.ltms.bridged.msg;
import java.util.List;
@@ -0,0 +1,199 @@
package dev.ltms.bridged.msg;
import dev.ltms.bridged.herdr.AgentControl;
import dev.ltms.bridged.herdr.AgentStatus;
import dev.ltms.bridged.mcp.PrimaryRegistry;
import dev.ltms.bridged.metrics.BridgedMetrics;
import dev.ltms.bridged.metrics.Metrics;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
/**
* Mechanism (b) of CB-307: a dedicated, status-gated push loop that nudges the primary's own
* herdr pane when a worker reply lands with no live {@code bridge_send} to resolve it.
*
* <p>The loop is triggered by {@link #onReplyQueued(String)} (called from
* {@link MessageService#reply} after the durable inbox publish). It checks four conditions
* at each tick via {@link #decide(String, int)}, then either injects a drain nudge,
* waits for the primary to become injectable, or stops reminding.
*
* <p>Bounded: at most {@link #maxReminders} nudges per target, with a configurable backoff
* between them. The reply is never lost — the durable inbox is the backstop.
*/
public final class ReplyPushLoop {
private static final Logger log = LoggerFactory.getLogger(ReplyPushLoop.class);
static final String NUDGE_FORMAT = "Worker %s returned a reply — run bridge_poll(target=%s) to collect it";
private final PrimaryRegistry primaryRegistry;
private final AgentControl agents;
private final ReplyInbox inbox;
private final ScheduledExecutorService scheduler;
private final int maxReminders;
private final long backoffMs;
private final Metrics metrics; // CB-512: nullable — no registry in unit tests
/** Track targets that have an active schedule. */
private final ConcurrentHashMap<String, Boolean> activeTargets = new ConcurrentHashMap<>();
public ReplyPushLoop(PrimaryRegistry primaryRegistry, AgentControl agents, ReplyInbox inbox,
ScheduledExecutorService scheduler,
int maxReminders, long backoffMs) {
this(primaryRegistry, agents, inbox, scheduler, maxReminders, backoffMs, null);
}
/** As above, with a metric registry (CB-512) so push outcomes are counted. */
public ReplyPushLoop(PrimaryRegistry primaryRegistry, AgentControl agents, ReplyInbox inbox,
ScheduledExecutorService scheduler,
int maxReminders, long backoffMs, Metrics metrics) {
this.primaryRegistry = primaryRegistry;
this.agents = agents;
this.inbox = inbox;
this.scheduler = scheduler;
this.maxReminders = maxReminders;
this.backoffMs = backoffMs;
this.metrics = metrics;
}
/** Count one nudge outcome when a registry is wired; a no-op in unit tests. */
private void countNudge(String outcome) {
if (metrics != null) {
metrics.inc(BridgedMetrics.PUSH_NUDGES, "outcome", outcome);
}
}
// --- decision logic (package-private for unit-testing) -------------------------------------
/** The action the loop should take for a target at the given reminder count. */
enum Action { INJECT, WAIT_BUSY, STOP }
/**
* Pure decision function: examine the current state and return what the loop should do.
*
* @param target the worker session (target terminal id)
* @param reminderCount how many nudges have been sent so far for this target
* @return the action the caller should take
*/
Action decide(String target, int reminderCount) {
// CB-532: the destination is per-delegation — the lead that sent this worker its work, not
// "the primary". With two leads orchestrating one fleet the singular question has no right
// answer, and answering it anyway interrupted whichever lead happened to call bridge_send
// first with results it never asked for.
var nudgeTarget = primaryRegistry.nudgeTargetFor(target);
if (nudgeTarget.isEmpty()) {
log.debug("push: no lead is known to be waiting on {}, stopping reminder", target);
return Action.STOP;
}
if (inbox.peek(target).isEmpty()) {
log.debug("push: inbox empty for {}, stopping reminder", target);
return Action.STOP;
}
if (reminderCount >= maxReminders) {
log.debug("push: reminder cap ({}) reached for {}, stopping", maxReminders, target);
countNudge("exhausted");
return Action.STOP;
}
String leadTerminal = nudgeTarget.get();
AgentStatus status;
try {
status = agents.status(leadTerminal);
} catch (RuntimeException e) {
log.debug("push: status check failed for lead {}, will retry", leadTerminal, e);
return Action.WAIT_BUSY;
}
if (status.injectable()) {
return Action.INJECT;
}
log.debug("push: lead {} is {} (not injectable), waiting", leadTerminal, status);
return Action.WAIT_BUSY;
}
// --- public entrypoint ---------------------------------------------------------------------
/**
* Called when a reply is queued for {@code target}. Idempotent per target: a second call while
* a schedule is active is a no-op. The schedule nudges the primary, then schedules a follow-up
* check (reminder on backoff, or re-check on WAIT_BUSY), until the inbox is empty or the cap
* is reached.
*/
public void onReplyQueued(String target) {
if (activeTargets.putIfAbsent(target, Boolean.TRUE) != null) {
log.debug("push: already active for {}, ignoring duplicate trigger", target);
return; // already scheduled
}
log.debug("push: starting reminder loop for {}", target);
scheduleNext(target, 0);
}
/** Execute one loop tick — called on the scheduler thread. */
private void tick(String target, int reminderCount) {
var action = decide(target, reminderCount);
switch (action) {
case INJECT -> {
injectNudge(target, reminderCount);
scheduleNext(target, reminderCount + 1);
}
// Re-check after the configured backoff; the primary may become injectable soon.
case WAIT_BUSY -> scheduleNext(target, reminderCount);
case STOP -> {
activeTargets.remove(target);
log.debug("push: reminder loop ended for {}", target);
}
}
}
/** Send the nudge and log the event. */
private void injectNudge(String target, int reminderCount) {
// Re-read rather than threading it down from decide(): the delegating lead can change
// between the decision and the injection, and the nudge should follow the current one.
var lead = primaryRegistry.nudgeTargetFor(target);
if (lead.isEmpty()) {
log.debug("push: lead for {} disappeared before the nudge could be sent", target);
return;
}
String leadTerminal = lead.get();
String nudge = NUDGE_FORMAT.formatted(target, target);
try {
agents.send(leadTerminal, nudge);
log.debug("push: nudge {}/{} sent to lead {} for target {}",
reminderCount + 1, maxReminders, leadTerminal, target);
countNudge("delivered");
} catch (RuntimeException e) {
log.warn("push: failed to nudge lead {} for target {} (reminder {}/{}): {}",
leadTerminal, target, reminderCount + 1, maxReminders, e.toString());
}
}
/** Schedule the next tick on the scheduler thread pool. */
private void scheduleNext(String target, int nextReminderCount) {
scheduler.schedule(() -> tick(target, nextReminderCount), backoffMs, TimeUnit.MILLISECONDS);
}
// --- lifecycle -----------------------------------------------------------------------------
/**
* Whether any reminder loop is currently active for some target (CB-551). The idle-lead heartbeat
* uses this to stand aside: while the push loop is actively nudging the lead, a concurrent
* heartbeat injection would start a second competing turn in the same pane — racing loops multiply
* turns and context burn. "Active" means a schedule exists in {@link #activeTargets}; the set is
* bounded by what has been triggered, not by any persistent state.
*/
public boolean isActive() {
return !activeTargets.isEmpty();
}
/** Shut down the scheduler. Outstanding reminders are cancelled. */
public void stop() {
scheduler.shutdownNow();
activeTargets.clear();
}
/** @see #stop() */
public void close() {
stop();
}
}
@@ -1,4 +1,4 @@
package dev.ltms.fleet.peer;
package dev.ltms.bridged.peer;
/**
* Declared capabilities of a {@link PeerLauncher}. The protocol is the union across all
@@ -9,7 +9,7 @@ package dev.ltms.fleet.peer;
public enum Capability {
/**
* The peer supports {@code fleet_ask} rendezvous — pausing its delegated turn to ask
* The peer supports {@code bridge_ask} rendezvous — pausing its delegated turn to ask
* the primary a question, then resuming once answered. All Claude Code peers support this.
*/
MID_TURN_ASK,
@@ -1,4 +1,4 @@
package dev.ltms.fleet.peer;
package dev.ltms.bridged.peer;
import java.util.Locale;
@@ -1,4 +1,4 @@
package dev.ltms.fleet.peer;
package dev.ltms.bridged.peer;
/**
* An opaque handle returned by {@link PeerLauncher#spawn(SpawnRequest)}. The core routes on
@@ -62,27 +62,9 @@ public interface PeerHandle {
* non-null for a spawn that requested session identity, because it knows the id before the
* peer has written anything.
*
* <p>Deliberately not a {@code default} (CB-584, the same fix CB-571 made for
* {@link #charterReceipt()} one method below): a decorator that forgets to override this
* silently answers {@code null} for a question it has no basis to answer, and the gap surfaces
* only as a resume that quietly starts a cold session, not a compile error. Every
* implementation must answer explicitly.
*
* @return the peer's own session id, or {@code null} when not determinable
*/
String agentSessionId();
/**
* The charter receipt (CB-571) for this peer's launch — the fingerprint of the exact charter
* bytes it was started with. {@code null} when the launcher records none (a non-instrumented
* adapter, or a launcher before this field); the session registry stores it so the spawn result
* and the roster row can show an operator which charter a member actually got.
*
* <p>Deliberately not a {@code default}: a decorator that forgets to override this silently
* answers {@code null} for a question it has no basis to answer, and the gap surfaces only as
* a missing roster field, not a compile error. Every implementation must answer explicitly.
*
* @return the fingerprint, or {@code null} when the launcher carries none
*/
CharterReceipt charterReceipt();
default String agentSessionId() {
return null;
}
}
@@ -0,0 +1,94 @@
package dev.ltms.bridged.peer;
import java.util.List;
import java.util.Set;
/**
* SPI for materializing a connected peer — the only way the bridge core creates or tears down
* a peer process. Every launcher is a first-party, in-tree adapter selected by (future) profile
* config; today's single adapter is the {@code ClaudeCodeLauncher} / Claude Code over herdr.
*
* <p>The core delegates spawn and teardown to this interface without knowing how the peer is set
* up. Environment variables, CLI flags, subscription guards, transport (herdr tab/pane) layout,
* and naming conventions are all adapter-private — the core sees only the returned
* {@link PeerHandle} whose {@code id()} is the registry/routing key.
*
* <p>The interface is a superset of what {@code SessionManager} and {@code Bridged.main} call
* on the concrete launcher today.
*/
public interface PeerLauncher {
/**
* The set of {@link Capability capabilities} this launcher declares. A peer whose profile
* opts into a git-forge token should include {@link Capability#SELF_PR}; the base set for
* the Claude Code herdr adapter is always {@code MID_TURN_ASK, WORKTREE, ORPHAN_REAP}.
*/
Set<Capability> capabilities();
/**
* {@code profileName}/requestedCwd null/blank → default resolution. Returns after the peer
* process is live (env + argv + placement complete). Never returns {@code null}.
*
* @param req the spawn parameters (profile, requested cwd, caller cwd)
* @return a handle whose {@link PeerHandle#id()} is the registry/routing key
* @throws IllegalArgumentException if the profile is unknown and no default is configured
*/
PeerHandle spawn(SpawnRequest req);
/**
* The configured worker profile names — the set of names {@code spawn(profileName)} accepts.
*/
Set<String> profiles();
/**
* The profile a no-argument {@link #spawn(SpawnRequest)} uses, or {@code null} if none is configured.
*/
String defaultProfile();
/**
* Resolve the effective working directory for a spawn {@code req} without actually spawning.
* Resolution order: requestedCwd → profile cwd → callerCwd → daemon cwd.
*
* @return the resolved absolute path, never null/blank
*/
String effectiveCwd(SpawnRequest req);
/**
* The parity-overlay file list for {@code profileName} (default list when unset). Used by
* worktree provisioning to copy config files into the isolated checkout before spawning.
*/
List<String> parityOverlay(String profileName);
/**
* The set of all agents this launcher currently tracks, transport-specific. Each element
* exposes at minimum a pane-like {@code id()} matching this launcher's {@link PeerHandle}
* scheme, plus transport-level status. Callers merge this set with the session registry to
* build a live roster view.
*/
List<?> list();
/**
* Reap orphaned peers left behind by a prior daemon process. Only peers whose naming scheme
* matches this launcher's and whose nonce differs from the current process are eligible.
* Best-effort: a failure to list or to stop any one peer is logged and never aborts startup.
*
* @return the number of orphaned peers reaped
*/
int reapOrphanWorkers();
/**
* Tear a peer down by its registry/routing key ({@link PeerHandle#id()}). Tolerates an
* already-gone peer. Also cleans up launcher-private resources (e.g. empty dedicated tabs)
* when safe to do so.
*/
void stop(String id);
/**
* Discard the context of the peer identified by {@code id}. Implementations must bypass normal
* bridge delivery/turn accounting. Unsupported peer kinds return {@code false} without sending
* a guessed command.
*
* @return {@code true} when a reset was sent and its status transition must settle before reuse
*/
boolean clearContext(String id);
}
@@ -1,4 +1,4 @@
package dev.ltms.fleet.peer;
package dev.ltms.bridged.peer;
/**
* Thrown when a {@link PeerLauncher} starts a peer process but the peer
@@ -1,4 +1,4 @@
package dev.ltms.fleet.peer;
package dev.ltms.bridged.peer;
/**
* What a caller asks for when spawning a peer.
@@ -0,0 +1,22 @@
package dev.ltms.bridged.placement;
/**
* Backward-compatible placement: an unqualified spawn always resolves to the configured default
* profile, exactly as {@code CompositePeerLauncher} did before CB-518. This ignores caps and
* reachability so that a pre-existing config behaves identically after upgrade.
*/
final class FixedPlacementPolicy implements PlacementPolicy {
@Override
public PlacementCandidate select(PlacementContext ctx) {
String d = ctx.defaultProfile();
if (d != null && !d.isBlank()) {
return new PlacementCandidate(d, null, 1.0f, null);
}
if (!ctx.candidates().isEmpty()) {
PlacementCandidate first = ctx.candidates().getFirst();
return new PlacementCandidate(first.profile(), null, first.weight(), first.maxLoad());
}
throw new PlacementException("no worker profiles configured");
}
}
@@ -1,4 +1,4 @@
package dev.ltms.fleet.placement;
package dev.ltms.bridged.placement;
/**
* A profile (and, in CB-308, a host) that can be chosen by a {@link PlacementPolicy}.
@@ -17,18 +17,4 @@ public record PlacementCandidate(String profile, String host, float weight, Inte
public static PlacementCandidate profile(String profile) {
return new PlacementCandidate(profile, null, 1.0f, null);
}
/**
* True when this candidate carries an explicit {@code weight <= 0} (CB-554) and must be
* skipped by every automatic policy — the same way a quarantined or unreachable candidate is
* skipped. {@code FleetConfig.Profile}'s compact constructor already normalises "absent" to
* {@code 1.0} and "negative" to {@code 0.0}, so this is a plain threshold check here; it does
* not need to distinguish "explicit 0" from "absent" itself.
*
* <p>Exclusion is about <em>automatic</em> selection only — an explicit
* {@code fleet_spawn{profile:"..."}} bypasses placement entirely and is unaffected.
*/
public boolean excluded() {
return weight <= 0.0f;
}
}
@@ -1,4 +1,4 @@
package dev.ltms.fleet.placement;
package dev.ltms.bridged.placement;
import java.util.List;
import java.util.Set;
@@ -11,13 +11,9 @@ import java.util.function.Function;
* @param candidates every configured candidate; the policy filters out those at cap or unreachable
* @param liveCount current live worker count per profile (from the session registry)
* @param unreachable profiles already known to have failed in this spawn attempt
* @param quarantined profiles whose credential is currently quarantined (CB-578 stage B) — a
* {@code BACKEND_EXHAUSTED} classification put it, or a profile it shares a
* credential with, on cooldown. Filtered the same way as {@code unreachable}.
*/
public record PlacementContext(String defaultProfile,
List<PlacementCandidate> candidates,
Function<String, Integer> liveCount,
Set<String> unreachable,
Set<String> quarantined) {
Set<String> unreachable) {
}
@@ -1,4 +1,4 @@
package dev.ltms.fleet.placement;
package dev.ltms.bridged.placement;
/**
* Thrown when a {@link PlacementPolicy} has no candidate available. Kept as a distinct type so
@@ -1,4 +1,4 @@
package dev.ltms.fleet.placement;
package dev.ltms.bridged.placement;
/**
* Factory for the built-in placement policies.
@@ -1,7 +1,7 @@
package dev.ltms.fleet.placement;
package dev.ltms.bridged.placement;
/**
* How {@code fleetd} chooses a worker profile when a spawn names none. Implementations are
* How {@code bridged} chooses a worker profile when a spawn names none. Implementations are
* deterministic and unit-testable; the caller (the composite launcher) handles failover retries.
*/
public interface PlacementPolicy {
@@ -1,4 +1,4 @@
package dev.ltms.fleet.placement;
package dev.ltms.bridged.placement;
import java.util.ArrayList;
import java.util.List;
@@ -12,16 +12,13 @@ final class PlacementPolicyUtil {
}
/**
* Candidates that are not weight-excluded (CB-554: explicit {@code weight <= 0}, checked
* first because it is a static config choice rather than transient state), not
* known-unreachable, not quarantined (CB-578 stage B), and have not reached their maxLoad.
* Candidates that are not known-unreachable and have not reached their maxLoad.
* A {@code null} maxLoad means unlimited.
*/
static List<PlacementCandidate> available(PlacementContext ctx) {
List<PlacementCandidate> out = new ArrayList<>();
for (PlacementCandidate c : ctx.candidates()) {
if (c.excluded() || ctx.unreachable().contains(c.profile())
|| ctx.quarantined().contains(c.profile())) {
if (ctx.unreachable().contains(c.profile())) {
continue;
}
Integer cap = c.maxLoad();
@@ -37,23 +34,15 @@ final class PlacementPolicyUtil {
}
/**
* Build a clear exception describing why every candidate was dropped: all weight-0, all
* quarantined, all at capacity, all unreachable, or a mix. Each candidate is counted into
* exactly one bucket (weight-excluded takes priority) so a candidate excluded for more than
* one reason is never double-counted.
* Build a clear exception describing why every candidate was dropped: all at capacity,
* all unreachable, or a mix.
*/
static PlacementException emptyException(PlacementContext ctx) {
int weightExcluded = 0;
int atCap = 0;
int unreachable = 0;
int quarantined = 0;
for (PlacementCandidate c : ctx.candidates()) {
Integer cap = c.maxLoad();
if (c.excluded()) {
weightExcluded++;
} else if (ctx.quarantined().contains(c.profile())) {
quarantined++;
} else if (ctx.unreachable().contains(c.profile())) {
if (ctx.unreachable().contains(c.profile())) {
unreachable++;
} else if (cap != null && ctx.liveCount().apply(c.profile()) >= cap) {
atCap++;
@@ -64,13 +53,6 @@ final class PlacementPolicyUtil {
if (total == 0) {
return new PlacementException("no worker profiles configured");
}
if (weightExcluded == total) {
return new PlacementException(
"all worker profiles have weight 0 (excluded from automatic selection)");
}
if (quarantined == total) {
return new PlacementException("all worker profiles are quarantined (backend exhausted)");
}
if (atCap == total) {
return new PlacementException("all worker profiles are at maxLoad");
}
@@ -78,8 +60,6 @@ final class PlacementPolicyUtil {
return new PlacementException("all worker profiles are unreachable");
}
return new PlacementException("no worker profile available: " + atCap + " at maxLoad, "
+ unreachable + " unreachable, " + quarantined + " quarantined, "
+ weightExcluded + " weight-0, "
+ (total - atCap - unreachable - quarantined - weightExcluded) + " remaining");
+ unreachable + " unreachable, " + (total - atCap - unreachable) + " remaining");
}
}
@@ -1,4 +1,4 @@
package dev.ltms.fleet.placement;
package dev.ltms.bridged.placement;
import java.util.List;
import java.util.concurrent.atomic.AtomicInteger;
@@ -1,4 +1,4 @@
package dev.ltms.fleet.placement;
package dev.ltms.bridged.placement;
import java.util.List;
import java.util.Map;
@@ -1,26 +1,24 @@
package dev.ltms.fleet.rest;
package dev.ltms.bridged.rest;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import dev.ltms.fleet.auth.AuditLog;
import dev.ltms.fleet.auth.Authz;
import dev.ltms.fleet.auth.CallerResolver;
import dev.ltms.fleet.auth.Principal;
import dev.ltms.fleet.guard.GuardException;
import dev.ltms.fleet.metrics.FleetMetrics;
import dev.ltms.fleet.metrics.Metrics;
import dev.ltms.fleet.herdr.Agent;
import dev.ltms.fleet.herdr.HerdrClient;
import dev.ltms.fleet.herdr.HerdrException;
import dev.ltms.fleet.inject.MemberPresence;
import dev.ltms.fleet.peer.PeerUnreachableException;
import dev.ltms.fleet.placement.PlacementException;
import dev.ltms.fleet.msg.MessageService;
import dev.ltms.fleet.session.SessionManager;
import dev.ltms.fleet.peer.MemberRole;
import dev.ltms.fleet.session.MemberSession;
import dev.ltms.fleet.session.WorktreeRequest;
import dev.ltms.fleet.peer.PeerLauncher;
import dev.ltms.bridged.auth.AuditLog;
import dev.ltms.bridged.auth.Authz;
import dev.ltms.bridged.auth.CallerResolver;
import dev.ltms.bridged.auth.Principal;
import dev.ltms.bridged.guard.GuardException;
import dev.ltms.bridged.metrics.Metrics;
import dev.ltms.bridged.herdr.Agent;
import dev.ltms.bridged.herdr.HerdrClient;
import dev.ltms.bridged.herdr.HerdrException;
import dev.ltms.bridged.inject.MemberPresence;
import dev.ltms.bridged.peer.PeerUnreachableException;
import dev.ltms.bridged.msg.MessageService;
import dev.ltms.bridged.session.SessionManager;
import dev.ltms.bridged.peer.MemberRole;
import dev.ltms.bridged.session.MemberSession;
import dev.ltms.bridged.session.WorktreeRequest;
import dev.ltms.bridged.peer.PeerLauncher;
import io.javalin.Javalin;
import io.javalin.http.Context;
import jakarta.servlet.http.HttpServlet;
@@ -31,11 +29,10 @@ import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.function.Function;
import java.util.function.Predicate;
import java.util.stream.Collectors;
/**
* The REST surface — {@code fleetd}'s contract and its testability seam. Every
* The REST surface — {@code bridged}'s contract and its testability seam. Every
* feature is reachable here without Claude or MCP in the loop, so each is an
* acceptance test against plain HTTP. MCP tools (later) are thin adapters over these
* same endpoints and are validated by parity, not by re-implementing behaviour.
@@ -43,24 +40,23 @@ import java.util.stream.Collectors;
* <p>Built from injected collaborators so tests supply fakes and run on an ephemeral
* port; {@code main} supplies the real Unix-socket client and worker service.
*/
public final class FleetApp {
public final class BridgedApp {
/** Default blocking window for a message; kept under typical HTTP idle timeouts. */
private static final long DEFAULT_MESSAGE_TIMEOUT_MS = 25_000;
private static final long MAX_MESSAGE_TIMEOUT_MS = 120_000;
/** Blocking window for a worker's fleet_ask (CB-205); the worker's MCP client caps its own call. */
/** Blocking window for a worker's bridge_ask (CB-205); the worker's MCP client caps its own call. */
private static final long DEFAULT_ASK_TIMEOUT_MS = 55_000;
private static final long MAX_ASK_TIMEOUT_MS = 115_000;
/** Context attribute under which the resolved caller is stashed by the auth filter. */
private static final String CALLER = "fleetd.caller";
private static final String CALLER = "bridged.caller";
private final HerdrClient herdr; // lead daemon
private final HerdrClient memberHerdr; // CB-185: member daemon (same object when unconfigured)
private final HerdrClient herdr;
private final PeerLauncher workers;
private final SessionManager sessions; // CB-301: authoritative session registry
private final MessageService messages;
private final Predicate<String> deliverable;
private final MemberPresence presence; // CB-113: which workers are MCP-connected (available)
private final HttpServlet mcpServlet; // MCP Streamable-HTTP endpoint, mounted at /mcp (nullable)
private final CallerResolver auth; // CB-501: null → authz not enforced (legacy behaviour)
private final Metrics metrics; // CB-502: null → /metrics not exposed
@@ -71,10 +67,10 @@ public final class FleetApp {
* behaved before CB-501. Retained so existing acceptance tests keep exercising handler
* behaviour without each needing an auth fixture.
*/
public FleetApp(HerdrClient herdr, PeerLauncher workers, SessionManager sessions,
MessageService messages, MemberPresence presence,
HttpServlet mcpServlet) {
this(herdr, workers, sessions, messages, presence, mcpServlet, null, null, presence::isPresent);
public BridgedApp(HerdrClient herdr, PeerLauncher workers, SessionManager sessions,
MessageService messages, MemberPresence presence,
HttpServlet mcpServlet) {
this(herdr, workers, sessions, messages, presence, mcpServlet, null, null);
}
/**
@@ -83,40 +79,14 @@ public final class FleetApp {
* @param metrics registry to instrument and expose at {@code GET /metrics}; {@code null} omits
* the endpoint
*/
public FleetApp(HerdrClient herdr, PeerLauncher workers, SessionManager sessions,
MessageService messages, MemberPresence presence,
HttpServlet mcpServlet, CallerResolver auth, Metrics metrics) {
this(herdr, workers, sessions, messages, presence, mcpServlet, auth, metrics, presence::isPresent);
}
/**
* @param deliverable the injector's readiness gate, shared so status reports its real result
*/
public FleetApp(HerdrClient herdr, PeerLauncher workers, SessionManager sessions,
MessageService messages, MemberPresence presence,
HttpServlet mcpServlet, CallerResolver auth, Metrics metrics,
Predicate<String> deliverable) {
this(herdr, herdr, workers, sessions, messages, presence, mcpServlet, auth, metrics, deliverable);
}
/**
* @param herdr the lead daemon's client
* @param memberHerdr the member daemon's client (CB-185); pass the same instance as
* {@code herdr} for a single-daemon deployment — {@code healthz}/{@code
* sessions} then make exactly one herdr call each, unchanged from before
* the two-daemon router existed
* @param deliverable the injector's readiness gate, shared so status reports its real result
*/
public FleetApp(HerdrClient herdr, HerdrClient memberHerdr, PeerLauncher workers, SessionManager sessions,
MessageService messages, MemberPresence presence,
HttpServlet mcpServlet, CallerResolver auth, Metrics metrics,
Predicate<String> deliverable) {
public BridgedApp(HerdrClient herdr, PeerLauncher workers, SessionManager sessions,
MessageService messages, MemberPresence presence,
HttpServlet mcpServlet, CallerResolver auth, Metrics metrics) {
this.herdr = herdr;
this.memberHerdr = memberHerdr != null ? memberHerdr : herdr;
this.workers = workers;
this.sessions = sessions;
this.messages = messages;
this.deliverable = deliverable;
this.presence = presence;
this.mcpServlet = mcpServlet;
this.auth = auth;
this.metrics = metrics;
@@ -133,7 +103,7 @@ public final class FleetApp {
}
});
// CB-501: resolve identity once per request, before any handler. /mcp does NOT pass through
// here — it is a raw servlet on Jetty's context handler — so FleetMcp enforces separately
// here — it is a raw servlet on Jetty's context handler — so BridgeMcp enforces separately
// against the same CallerResolver. Any check that lives in only one place is not a control.
if (auth != null) {
app.before(ctx -> ctx.attribute(CALLER,
@@ -150,11 +120,11 @@ public final class FleetApp {
app.get("/profiles", this::profiles); // configured backend profiles
app.post("/members", this::spawnMember); // optional ?role=&profile= or {"role":…,"profile":…}
app.delete("/members/{paneId}", this::stopMember);
app.post("/sessions/{id}/message", this::sendMessage); // fleet_send (primary; blocking, wait:false, or answer via turnId)
app.post("/sessions/{id}/reply", this::replyMessage); // fleet_reply (worker)
app.post("/sessions/{id}/message", this::sendMessage); // bridge_send (primary; blocking, wait:false, or answer via turnId)
app.post("/sessions/{id}/reply", this::replyMessage); // bridge_reply (worker)
app.get("/sessions/{id}/replies", this::drainReplies); // drain reply inbox (CB-307)
app.post("/sessions/{id}/ask", this::askMessage); // fleet_ask (worker → primary, CB-205)
app.get("/sessions/{id}/status", this::sessionStatus); // fleet_status
app.post("/sessions/{id}/ask", this::askMessage); // bridge_ask (worker → primary, CB-205)
app.get("/sessions/{id}/status", this::sessionStatus); // bridge_status
app.get("/tasks/{ticket}", this::taskStatus); // poll an async (wait:false) send
return app;
}
@@ -195,7 +165,7 @@ public final class FleetApp {
private void countAuthFailure(String reason) {
if (metrics != null) {
metrics.inc(FleetMetrics.AUTH_FAILURES, "reason", reason);
metrics.inc("bridged_auth_failures_total", "reason", reason);
}
}
@@ -207,85 +177,30 @@ public final class FleetApp {
ctx.status(200).contentType("text/plain; version=0.0.4; charset=utf-8").result(metrics.render());
}
/**
* Liveness + herdr reachability. 200 only when BOTH daemons answer ping — 503 otherwise
* (CB-185). With no {@code memberHerdrSocket} configured {@code memberHerdr == herdr}, so this
* makes exactly the one {@code ping} call it always did and reports the same body; with a
* second daemon configured, a member daemon that is down must not be masked by a healthy lead
* daemon — every spawn goes through the member daemon and would otherwise fail silently behind
* a green {@code /healthz}.
*
* <p>CB-185 blocker 2: the {@code herdr} key always carries the <em>lead</em> daemon's
* version/protocol, unchanged, because two consumers — {@code scripts/redeploy-fleetd.sh} and
* {@code scripts/rename-checkout.sh} — read this endpoint already (both only check the HTTP
* status code and print the body verbatim; neither parses a specific field, so adding a key
* alongside {@code herdr} is safe). But it is the <em>member</em> daemon's protocol that decides
* whether a spawn works, so when a second daemon is configured its version/protocol is reported
* too, under a separate {@code member} key — never folded into {@code herdr}, which would make a
* mismatch invisible to whichever consumer only reads that key. If the two protocol numbers
* differ, {@code protocolMismatch: true} calls it out explicitly rather than leaving it to be
* spotted by comparing two numbers by eye.
*/
/** Liveness + herdr reachability. 200 when herdr answers ping, 503 otherwise. */
private void healthz(Context ctx) {
JsonNode pong;
try {
pong = herdr.call("ping");
JsonNode pong = herdr.call("ping");
ctx.status(200).json(Map.of(
"status", "ok",
"herdr", Map.of(
"version", pong.path("version").asText(""),
"protocol", pong.path("protocol").asInt())));
} catch (HerdrException e) {
ctx.status(503).json(Map.of(
"status", "degraded",
"herdr", "unreachable",
"detail", e.getMessage()));
return;
}
Map<String, Object> body = new LinkedHashMap<>();
body.put("status", "ok");
body.put("herdr", Map.of(
"version", pong.path("version").asText(""),
"protocol", pong.path("protocol").asInt()));
if (memberHerdr != herdr) {
JsonNode memberPong;
try {
memberPong = memberHerdr.call("ping");
} catch (HerdrException e) {
ctx.status(503).json(Map.of(
"status", "degraded",
"herdr", "member unreachable",
"detail", e.getMessage()));
return;
}
int leadProtocol = pong.path("protocol").asInt();
int memberProtocol = memberPong.path("protocol").asInt();
body.put("member", Map.of(
"version", memberPong.path("version").asText(""),
"protocol", memberProtocol));
if (leadProtocol != memberProtocol) {
body.put("protocolMismatch", true);
}
}
ctx.status(200).json(body);
}
/**
* Sessions view derived from herdr {@code workspace.list} (one workspace → one row), merged
* across both daemons (CB-185). With no {@code memberHerdrSocket} configured {@code
* memberHerdr == herdr}, so this calls {@code workspace.list} exactly once, same as before the
* router existed; with a second daemon configured, calling it twice would silently drop every
* member workspace (they live on the member daemon only).
*/
/** Sessions view derived from herdr {@code workspace.list} (one workspace → one row). */
private void sessions(Context ctx) {
if (!allow(ctx, Authz.Action.READ, null)) {
return;
}
JsonNode result = herdr.call("workspace.list");
List<Map<String, Object>> out = new ArrayList<>();
collectSessions(herdr, out);
if (memberHerdr != herdr) {
collectSessions(memberHerdr, out);
}
ctx.status(200).json(Map.of("sessions", out));
}
private static void collectSessions(HerdrClient client, List<Map<String, Object>> out) {
JsonNode result = client.call("workspace.list");
for (JsonNode w : result.path("workspaces")) {
out.add(Map.of(
"id", w.path("workspace_id").asText(""),
@@ -294,6 +209,7 @@ public final class FleetApp {
"paneCount", w.path("pane_count").asInt(),
"agentStatus", w.path("agent_status").asText("unknown")));
}
ctx.status(200).json(Map.of("sessions", out));
}
/** Discovery: every agent herdr tracks, keyed by its Claude session UUID. */
@@ -302,7 +218,7 @@ public final class FleetApp {
return;
}
ctx.status(200).json(Map.of("agents",
workers.list().stream().map(Agent.class::cast).map(FleetApp::view).toList()));
workers.list().stream().map(Agent.class::cast).map(BridgedApp::view).toList()));
}
/** CB-304: bridge-owned roster merged with live herdr status by paneId. */
@@ -318,14 +234,7 @@ public final class FleetApp {
List<Map<String, Object>> out = sessions.roster().stream()
.map(s -> SessionManager.rosterView(s, live.get(s.terminalId())))
.toList();
Map<String, Object> body = new LinkedHashMap<>();
body.put("workers", out);
// CB-586: operator visibility for the refs/wip snapshot store without shelling into the
// repo — how many snapshot refs exist and roughly what they cost. Present only once a
// worktree session has established the repo, so a never-snapshotted fleet reports nothing.
sessions.wipRefs().ifPresent(st -> body.put("wipRefs",
Map.of("count", st.count(), "costBytes", st.costBytes())));
ctx.status(200).json(body);
ctx.status(200).json(Map.of("workers", out));
}
/** The configured worker profiles and which one a no-argument spawn uses. */
@@ -383,11 +292,6 @@ public final class FleetApp {
ctx.status(201).json(view(member));
} catch (GuardException e) {
ctx.status(403).json(Map.of("error", "subscription_boundary", "detail", e.getMessage()));
} catch (PlacementException e) {
// CB-599: no candidate had capacity (maxLoad, quarantine, or all-exhausted) — a benign,
// likely-transient refusal, distinct from "profile does not exist" below. 503: the
// request was valid and will likely succeed later.
ctx.status(503).json(Map.of("error", "no_capacity", "detail", e.getMessage()));
} catch (IllegalArgumentException e) {
ctx.status(400).json(Map.of("error", "unknown_profile", "detail", e.getMessage()));
} catch (PeerUnreachableException e) {
@@ -424,7 +328,7 @@ public final class FleetApp {
/**
* The blocking delegation call (CB-104): inject {@code content} into the worker via the
* status-gated injector and block until the worker returns a structured {@code fleet_reply}.
* status-gated injector and block until the worker returns a structured {@code bridge_reply}.
* Times out with a typed 202 (working / queued / busy) rather than an error — the message may
* still land.
*/
@@ -453,7 +357,7 @@ public final class FleetApp {
}
timeout = Math.clamp(timeout, 1, MAX_MESSAGE_TIMEOUT_MS);
// Answering a worker's fleet_ask (CB-205): always blocks, and derives the worker from turnId.
// Answering a worker's bridge_ask (CB-205): always blocks, and derives the worker from turnId.
if (turnId != null && !turnId.isBlank()) {
writeReply(ctx, id, messages.answer(turnId, content, timeout), timeout);
return;
@@ -475,7 +379,7 @@ public final class FleetApp {
/**
* Render a {@link MessageService.Reply} onto the response — shared by a normal send and a
* fleet_ask answer. A structured/scraped completion is 200; a worker's mid-turn question a 202
* bridge_ask answer. A structured/scraped completion is 200; a worker's mid-turn question a 202
* (with its {@code turnId}); a stale answer a 409; every other non-terminal outcome a typed 202.
*/
private void writeReply(Context ctx, String id, MessageService.Reply reply, long timeout) {
@@ -487,7 +391,7 @@ public final class FleetApp {
"sessionId", id, "error", "stale_turn",
"detail", "that question is no longer open (timed out or already answered)"));
case REPLIED, COMPLETED_UNREPLIED -> {
// replySource distinguishes a structured fleet_reply from the CB-106 completion
// replySource distinguishes a structured bridge_reply from the CB-106 completion
// fallback (a scrape of the worker's transcript when it finished without replying).
String source = reply.outcome() == MessageService.Outcome.REPLIED ? "reply" : "transcript";
ctx.status(200).json(Map.of("sessionId", id, "reply", reply.text(), "replySource", source));
@@ -499,19 +403,16 @@ public final class FleetApp {
case TIMED_OUT_QUEUED -> "queued";
case BUSY -> "busy";
case WORKER_FAILED -> "failed";
case BACKEND_EXHAUSTED -> "backend_exhausted";
default -> "done"; // unreachable (terminal outcomes handled above)
},
"detail", (reply.outcome() == MessageService.Outcome.WORKER_FAILED
|| reply.outcome() == MessageService.Outcome.BACKEND_EXHAUSTED)
&& reply.text() != null
"detail", reply.outcome() == MessageService.Outcome.WORKER_FAILED && reply.text() != null
? reply.text()
: "no reply within " + timeout + "ms; poll status or retry"));
}
}
/**
* A worker's mid-turn question ({@code fleet_ask}, CB-205) — surfaces to the primary's open
* A worker's mid-turn question ({@code bridge_ask}, CB-205) — surfaces to the primary's open
* blocking send and blocks until it answers. 200 with the answer, 409 if no delegation is open,
* 202 if the primary stayed silent.
*/
@@ -548,7 +449,7 @@ public final class FleetApp {
}
/**
* The worker's structured reply ({@code fleet_reply}) — resolves the blocking send awaiting
* The worker's structured reply ({@code bridge_reply}) — resolves the blocking send awaiting
* on this session, or queues the reply in the inbox when no send is open (CB-307).
*/
private void replyMessage(Context ctx) {
@@ -588,10 +489,10 @@ public final class FleetApp {
}
/**
* Live lifecycle status of a worker (MCP `fleet_status` wraps this in CB-105), plus its
* <em>readiness</em>: {@code ready} is true when the injector can deliver to the target. A
* spawned member must connect the bridge MCP first, while a known lead is ready without member
* presence. This differs from bare {@code idle}, which is also true during member boot.
* Live lifecycle status of a worker (MCP `bridge_status` wraps this in CB-105), plus its
* <em>readiness</em> (CB-113): {@code ready} is true once the worker's Claude has connected the
* bridge MCP — the reliable "available to receive a task" signal, unlike bare {@code idle}, which
* is also true during boot.
*/
private void sessionStatus(Context ctx) {
String id = ctx.pathParam("id");
@@ -599,20 +500,10 @@ public final class FleetApp {
return;
}
try {
Map<String, Object> body = new LinkedHashMap<>();
body.put("sessionId", id);
body.put("status", messages.status(id).name().toLowerCase());
body.put("ready", deliverable.test(id));
// CB-582: a worker paused mid-turn in an async fleet_ask is otherwise invisible to a
// status poll — surface the open question and how to answer it, same as fleet_poll's
// Phase.ASKING view.
MessageService.PendingAsk ask = messages.pendingAsk(id);
if (ask != null) {
body.put("question", ask.question());
body.put("turnId", ask.turnId());
body.put("ticket", ask.ticket());
}
ctx.status(200).json(body);
ctx.status(200).json(Map.of(
"sessionId", id,
"status", messages.status(id).name().toLowerCase(),
"ready", presence.isPresent(id)));
} catch (HerdrException e) {
herdrError(ctx, e);
}
@@ -638,11 +529,6 @@ public final class FleetApp {
if (v.detail() != null) {
body.put("detail", v.detail());
}
// CB-582: Phase.ASKING carries the question in v.reply() (handled above) and its answer-
// correlation id here — a REST caller polling this ticket otherwise has no way to answer it.
if (v.turnId() != null) {
body.put("turnId", v.turnId());
}
ctx.status(200).json(body);
}
@@ -0,0 +1,277 @@
package dev.ltms.bridged.session;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.UncheckedIOException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.StandardCopyOption;
import java.security.SecureRandom;
import java.util.List;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicLong;
import java.util.stream.Collectors;
/**
* Production {@link Worktrees} implementation that shells {@code git} via {@link ProcessBuilder}.
* Non-zero exits become {@link WorktreeException}. Worktree directories live under a configurable
* root (default: a sibling {@code .bridged-worktrees} of the repo root) so they are never nested
* inside the primary working tree.
*/
public final class GitWorktrees implements Worktrees {
private static final Logger log = LoggerFactory.getLogger(GitWorktrees.class);
/** Project-level MCP config. Present in the repo, so every worktree would otherwise inherit the
* primary's IDE server mounts (a CB-523 worker edited the primary checkout; see the isolation
* javadoc). Neutralized unconditionally. */
private static final String MCP_CONFIG = ".mcp.json";
/** What {@link #isolateToolSurface} writes for {@code .mcp.json}: a valid, explicitly empty server map. */
private static final String NEUTRAL_MCP_CONFIG = "{\n \"mcpServers\": {}\n}\n";
/** OpenCode's repo-level config. Tracked here, so it lands in every worktree, and it mounts the
* primary's gitea and context7 servers with the primary's credentials. Neutralized so the worker
* gets only the config its launcher writes via {@code OPENCODE_CONFIG}.
*
* <p>The reason has changed shape and is now stronger. It used to be a crash: the file carried
* {@code {file:.secrets/...}} references to gitignored files that never reached a worktree, and
* opencode refuses to start on a dangling reference (CB-543). Those credentials now live in one
* shell-level store and the file reads them as {@code {env:...}}, so in a worktree the reference
* resolves instead of failing. That is worse, not better: a member would silently inherit the
* primary's admin-scoped {@code GITEA_ACCESS_TOKEN}. A loud crash became a quiet privilege leak,
* so this entry protects a boundary now rather than papering over a startup error. */
private static final String OPENCODE_CONFIG = "opencode.json";
/** What {@link #isolateToolSurface} writes for {@code opencode.json}: a valid, empty JSON object. */
private static final String NEUTRAL_OPENCODE_CONFIG = "{}\n";
/** Autoenv's repo-level config. Not tracked today, but re-landing it must stay safe: autoenv
* authorizes by path, so a fresh worktree path is always unauthorized and its interactive prompt
* would block every spawn — neutralize it so it can never be committed. */
private static final String AUTOENV_CONFIG = ".autoenv";
/** What {@link #isolateToolSurface} writes for {@code .autoenv}: a valid, empty env file. */
private static final String NEUTRAL_AUTOENV_CONFIG = "";
/**
* A tracked project config that is hostile in a provisioned worktree, and what to replace it
* with. {@link #file} is the repo-relative path; {@link #stub} is a neutral but VALID payload for
* that file's format — a malformed stub would only trade one crash for another;
* {@link #createIfAbsent} keeps {@code .mcp.json}'s long-standing behaviour of writing its stub
* even when the repo carries no such file, whereas the others are only touched when present.
*/
private record WorktreeHostileConfig(String file, String stub, boolean createIfAbsent) {}
/** The worktree-hostile configs neutralized in every provisioned worktree, in order. */
private static final List<WorktreeHostileConfig> WORKTREE_HOSTILE_CONFIGS = List.of(
new WorktreeHostileConfig(MCP_CONFIG, NEUTRAL_MCP_CONFIG, true),
new WorktreeHostileConfig(OPENCODE_CONFIG, NEUTRAL_OPENCODE_CONFIG, false),
new WorktreeHostileConfig(AUTOENV_CONFIG, NEUTRAL_AUTOENV_CONFIG, false)
);
private final String configuredRoot;
private final SecureRandom random = new SecureRandom();
private final AtomicLong seq = new AtomicLong();
/** Default constructor: worktree root is derived per-repo as {@code <repoRoot>/../.bridged-worktrees}. */
public GitWorktrees() {
this(null);
}
/** @param configuredRoot nullable absolute or relative path; null/blank derives a sibling of the repo root. */
public GitWorktrees(String configuredRoot) {
this.configuredRoot = configuredRoot;
}
@Override
public String add(String repoRoot, String branch, String baseRef) {
String base = (baseRef == null || baseRef.isBlank()) ? "HEAD" : baseRef;
String nonce = nonce();
Path root = resolveRoot(repoRoot);
Path path = root.resolve(nonce);
try {
Files.createDirectories(root);
} catch (IOException e) {
throw new WorktreeException("cannot create worktree root " + root + ": " + e.getMessage(), e);
}
String wt = path.toAbsolutePath().toString();
log.info("adding worktree branch={} path={} base={}", branch, wt, base);
exec("git", "-C", repoRoot, "worktree", "add", wt, "-b", branch, base);
isolateToolSurface(wt);
return wt;
}
/**
* Neutralize the worktree's worktree-hostile project configs so a worker inherits only the tools
* and environment its launcher mounts (the bridge via {@code --mcp-config}, the opencode config
* via {@code OPENCODE_CONFIG}) — never the primary's.
*
* <p>This is unconditional, and it is not the same job as the parity overlay. The repo's own
* committed {@code .mcp.json} declares the primary's IDE servers, so a fresh checkout mounts them
* whether or not the overlay copies anything; a worker that inherits them navigates and edits
* through tools bound to the <em>primary's</em> IntelliJ project, which silently hands it absolute
* paths outside its own worktree. That is not hypothetical: a CB-523 worker made all 59 of its
* edits in the primary checkout while compiling its worktree, so every build it ran was of code
* that did not contain its changes. {@code opencode.json} is the same trap one tool over — tracked,
* so it lands in every worktree, and it mounts gitea and context7 with the primary's own
* credentials, which a member must never hold. {@code .autoenv} extends the principle to a
* config that is not tracked today: autoenv authorizes by path, so a fresh worktree path is always
* unauthorized and its interactive prompt would block every spawn, so re-landing one must be safe.
*
* <p>Where a config exists it is replaced by a valid neutral stub (an explicitly empty
* map/object, or an empty env file — never a deletion, which would still let a later
* {@code git checkout} restore the hostile copy). The {@code --skip-worktree} bit keeps the
* neutralized copy from ever showing up as a local modification the worker might commit. A config
* the repo does not carry is skipped silently — no stub is invented for a file the repo does not
* have, and one missing file must never fail provisioning.
*/
private void isolateToolSurface(String worktreePath) {
Path root = Path.of(worktreePath).toAbsolutePath().normalize();
for (WorktreeHostileConfig cfg : WORKTREE_HOSTILE_CONFIGS) {
neutralize(root, worktreePath, cfg);
}
}
private void neutralize(Path root, String worktreePath, WorktreeHostileConfig cfg) {
Path target = root.resolve(cfg.file());
if (!Files.exists(target) && !cfg.createIfAbsent()) {
log.debug("{} absent in the worktree — skipping (repo does not carry it)", cfg.file());
return;
}
try {
Files.writeString(target, cfg.stub());
} catch (IOException e) {
throw new WorktreeException("cannot neutralize " + cfg.file() + " in the worktree: "
+ e.getMessage(), e);
}
if (isTracked(root, cfg.file())) {
exec("git", "-C", worktreePath, "update-index", "--skip-worktree", cfg.file());
}
log.debug("neutralized {} — worker tool surface is launcher-mounted only", cfg.file());
}
@Override
public void remove(String repoRoot, String worktreePath) {
Path p = Path.of(worktreePath);
if (!Files.exists(p)) {
log.debug("worktree {} already gone — nothing to remove", worktreePath);
return;
}
log.info("removing worktree {}", worktreePath);
exec("git", "-C", repoRoot, "worktree", "remove", "--force", worktreePath);
}
@Override
public void overlayParity(String repoRoot, String worktreePath, List<String> overlay) {
if (overlay == null || overlay.isEmpty()) {
return;
}
Path srcRoot = Path.of(repoRoot).toAbsolutePath().normalize();
Path dstRoot = Path.of(worktreePath).toAbsolutePath().normalize();
for (String rel : overlay) {
Path src = srcRoot.resolve(rel).normalize();
if (!Files.exists(src)) {
log.debug("parity overlay source missing — skipping {}", rel);
continue;
}
Path dst = dstRoot.resolve(rel).normalize();
try {
Files.createDirectories(dst.getParent());
Files.copy(src, dst, StandardCopyOption.REPLACE_EXISTING, StandardCopyOption.COPY_ATTRIBUTES);
log.debug("copied parity overlay {}", rel);
} catch (IOException e) {
throw new WorktreeException("cannot copy overlay " + rel + ": " + e.getMessage(), e);
}
if (isTracked(dstRoot, rel)) {
exec("git", "-C", worktreePath, "update-index", "--skip-worktree", rel);
log.debug("marked overlay --skip-worktree {}", rel);
}
}
}
@Override
public String repoRoot(String cwd) {
String out = exec("git", "-C", cwd, "rev-parse", "--show-toplevel");
return Path.of(out.trim()).toAbsolutePath().normalize().toString();
}
/** Resolve the directory that will hold per-session worktree checkouts. */
private Path resolveRoot(String repoRoot) {
if (configuredRoot != null && !configuredRoot.isBlank()) {
return Path.of(configuredRoot).toAbsolutePath().normalize();
}
Path repo = Path.of(repoRoot).toAbsolutePath().normalize();
return repo.resolveSibling(".bridged-worktrees");
}
private String nonce() {
return String.format("%06x", random.nextInt(1 << 24)) + "-" + seq.incrementAndGet();
}
private boolean isTracked(Path worktreeRoot, String rel) {
return exitCode("git", "-C", worktreeRoot.toString(), "ls-files", "--error-unmatch", rel) == 0;
}
/**
* Run a command and return its stdout. Non-zero exit → {@link WorktreeException} with both
* stdout and stderr (merged by redirectErrorStream).
*/
private String exec(String... command) {
String out;
int code;
Process p;
try {
p = new ProcessBuilder(command).redirectErrorStream(true).start();
} catch (IOException e) {
throw new WorktreeException("failed to start " + command[0] + ": " + e.getMessage(), e);
}
try (BufferedReader r = new BufferedReader(new InputStreamReader(p.getInputStream(), StandardCharsets.UTF_8))) {
out = r.lines().collect(Collectors.joining("\n"));
} catch (IOException e) {
p.destroyForcibly();
throw new UncheckedIOException(e);
}
try {
if (!p.waitFor(30, TimeUnit.SECONDS)) {
p.destroyForcibly();
throw new WorktreeException("command timed out: " + String.join(" ", command) + "\n" + out);
}
code = p.exitValue();
} catch (InterruptedException e) {
p.destroyForcibly();
Thread.currentThread().interrupt();
throw new WorktreeException("interrupted waiting for command: " + String.join(" ", command), e);
}
if (code != 0) {
throw new WorktreeException("exit " + code + " for: " + String.join(" ", command)
+ (out.isBlank() ? "" : "\n" + out));
}
return out;
}
private int exitCode(String... command) {
Process p;
try {
p = new ProcessBuilder(command).redirectErrorStream(true).start();
} catch (IOException e) {
throw new WorktreeException("failed to start " + command[0] + ": " + e.getMessage(), e);
}
try {
if (!p.waitFor(30, TimeUnit.SECONDS)) {
p.destroyForcibly();
throw new WorktreeException("command timed out: " + String.join(" ", command));
}
return p.exitValue();
} catch (InterruptedException e) {
p.destroyForcibly();
Thread.currentThread().interrupt();
throw new WorktreeException("interrupted waiting for command: " + String.join(" ", command), e);
}
}
}
@@ -1,7 +1,6 @@
package dev.ltms.fleet.session;
package dev.ltms.bridged.session;
import dev.ltms.fleet.peer.CharterReceipt;
import dev.ltms.fleet.peer.MemberRole;
import dev.ltms.bridged.peer.MemberRole;
/**
* A bridge-owned worker session — the authoritative in-daemon record of a worker this
@@ -10,7 +9,7 @@ import dev.ltms.fleet.peer.MemberRole;
*
* @param paneId the host-unique opaque id (CB-519) — the registry key and the argument to
* teardown. Despite the historical name this is the {@link
* dev.ltms.fleet.peer.PeerHandle#id()}, a UUID, and is distinct from the
* dev.ltms.bridged.peer.PeerHandle#id()}, a UUID, and is distinct from the
* launcher-private herdr pane coordinate.
* @param terminalId herdr terminal handle — the {@code target} for send/read/status
* @param profile the profile name that spawned this session — WHICH BACKEND
@@ -24,13 +23,6 @@ import dev.ltms.fleet.peer.MemberRole;
* @param lastActivityAtNanos {@link System#nanoTime()} of the most recent lifecycle event
* @param turnCount number of delegated turns that have been delivered to this session
* @param state current lifecycle state in the one-shot FSM
* @param charterReceipt the fingerprint (CB-571) of the charter bytes this member was started
* with; {@code null} for a session whose launcher recorded none
* @param agentSessionId the peer's OWN session id (CB-584) — the handle a later
* {@code resumeSessionId} spawn would pass back to resume this exact
* conversation; {@code null} when the launcher could not determine one
* (an adapter that declines {@code Capability.SESSION_RESUME}, or one
* that resolves it lazily and has not yet)
*/
public record MemberSession(
String paneId,
@@ -44,9 +36,7 @@ public record MemberSession(
int turnCount,
State state,
String worktree,
String branch,
CharterReceipt charterReceipt,
String agentSessionId) {
String branch) {
/** One-shot worker lifecycle states. */
public enum State {
@@ -58,35 +48,21 @@ public record MemberSession(
RELEASED
}
/**
* Backward-compatible shape: a session with no charter receipt and no agent session id (a test
* or a launcher before CB-571 / CB-584). A separate constructor rather than a new parameter on
* the canonical one, so existing call sites that have nothing to record keep compiling
* unchanged.
*/
public MemberSession(String paneId, String terminalId, String profile, MemberRole role,
String cwd, String ownerTerminal, long spawnedAtNanos,
long lastActivityAtNanos, int turnCount, State state,
String worktree, String branch) {
this(paneId, terminalId, profile, role, cwd, ownerTerminal, spawnedAtNanos,
lastActivityAtNanos, turnCount, state, worktree, branch, null, null);
}
/** Return a copy of this session in {@code state}. */
public MemberSession withState(State state) {
return new MemberSession(paneId, terminalId, profile, role, cwd, ownerTerminal, spawnedAtNanos,
lastActivityAtNanos, turnCount, state, worktree, branch, charterReceipt, agentSessionId);
lastActivityAtNanos, turnCount, state, worktree, branch);
}
/** Return a copy with {@code lastActivityAtNanos} updated to {@code nowNanos}. */
public MemberSession withActivity(long nowNanos) {
return new MemberSession(paneId, terminalId, profile, role, cwd, ownerTerminal, spawnedAtNanos,
nowNanos, turnCount, state, worktree, branch, charterReceipt, agentSessionId);
nowNanos, turnCount, state, worktree, branch);
}
/** Return a copy with the turn count incremented and activity timestamped at {@code nowNanos}. */
public MemberSession bumpTurn(long nowNanos) {
return new MemberSession(paneId, terminalId, profile, role, cwd, ownerTerminal, spawnedAtNanos,
nowNanos, turnCount + 1, state, worktree, branch, charterReceipt, agentSessionId);
nowNanos, turnCount + 1, state, worktree, branch);
}
}

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