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fleetd: central allow-list of usable models (models: + validateModels()) #398

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Unit: a central allow-list of usable models (fleetd)

What changed

  • New optional top-level config block: models: { allow: [ { model: <id> }, ... ] } on FleetConfig
    (FleetConfig.Models / FleetConfig.Models.ModelEntry).
  • New FleetConfig.validateModels(): when models.allow: is non-empty, any profiles: entry whose
    model: is not in the allow-list fails config load, naming both the model and the profile. A
    profile with no model: set (e.g. a subscription: true profile) is never checked.
  • Wired into Fleetd.main() next to the other validateXxx() calls, and into ConfigRef.reload()
    (same reasoning as validateMembers(): a config that would refuse to boot must not slip in
    through a reload) plus ConfigRef.DEFERRED_KEYS/changedDeferredKeys so a reload correctly
    reports a changed models: block as "needs a restart" rather than silently doing nothing.
  • Documented as a new, fully-commented-out models: section in fleetd.example.yaml (this file is
    the only committed description of the schema, since fleetd.yaml is gitignored on every host).
  • Added models to KNOWN_TOP_LEVEL_KEYS so it isn't WARNed as an unknown top-level key.

Both invariants hold

  • List is the authority: validateModels() only ever reads profiles: and checks each
    model: against models.allow: — it can only refuse, never widen, what a profiles: edit
    permits. A dedicated test (addingAProfileCannotWidenTheAllowListByItself) pins this directly.
  • Absent block = today's behaviour: absent or empty models.allow: makes validateModels()
    a no-op. Existing gitignored fleetd.yaml configs on both hosts keep working unchanged after
    upgrade — no forced migration.

Shape decisions (asked to state explicitly)

  • Not bare strings. Each allow-list entry is its own ModelEntry(String model) record rather
    than a List<String>, specifically so a later unit can hang an on/off flag or a load limit off
    each entry without changing the YAML shape underneath an operator who already wrote one.
  • One flat namespace for both id shapes. A bare Claude id (claude-sonnet-5) and an opencode
    provider-prefixed id (openai/gpt-5.6-terra) are both just opaque strings compared for exact
    equality — validateModels() never parses a provider prefix or branches on a profile's kind:.
    Covered by a live-shape test (aBareClaudeIdAndAnOpencodeProviderPrefixedIdBothFitOneAllowList)
    mixing amazon-bedrock/opencode/openai-backed profiles in one list.

Out of scope (per the ticket) — not touched

No spawn-time enforcement, no runtime on/off switch, no BackendQuarantine change, no catalogue
lookup against a live backend. validateModels() is config-load (and config-reload) validation
only.

Tests

FleetConfigTest (13 new cases): absent block, empty allow:, a profile outside the list refused
(naming both), a profile inside the list passing, a profile with no model: passing even with an
active allow-list, the live multi-provider shape (bare + provider-prefixed ids, one allowed one
not), the "editing profiles: alone cannot widen" pin, and models present in
KNOWN_TOP_LEVEL_KEYS. All fixtures use @TempDir — no file touches a real .claude.json or
fleetd.yaml.

Also updated three existing "coverage" tests that assert every FleetConfig top-level component
is accounted for somewhere (ConfigRefTopLevelReportingCoverageTest,
FleetConfigWithDefaultsPreservesEveryComponentTest) or triaged into a ConfigRef reload class
(ConfigRefTopLevelCoverageTest, satisfied by classifying models as DEFERRED_KEYS in
ConfigRef.java — nothing rebuilds off it after startup, so a reload accepts a change but reports
it needs a restart, same shape as guard:/quarantineCooldownSeconds:).

Verification (mvn clean install, unpiped, redirected to a file)

  • Full build: Tests run: 1478, Failures: 0, Errors: 0, Skipped: 0 — BUILD SUCCESS.
  • Test fails without the fix, confirmed live: saved a patch of the three production files
    (FleetConfig.java, Fleetd.java, ConfigRef.java), reverted them with
    git checkout -- <files> (kept the new tests), and ran
    mvn test -Dtest=FleetConfigTest,ConfigRefTopLevelReportingCoverageTest,FleetConfigWithDefaultsPreservesEveryComponentTest,ConfigRefTopLevelCoverageTest:
    compilation failure —
    cannot find symbol: class Models (in ConfigRefTopLevelReportingCoverageTest/FleetConfigWithDefaultsPreservesEveryComponentTest)
    and cannot find symbol: method validateModels() (in FleetConfigTest, 8 call sites). Restored
    the patch with git apply, re-ran the full build: green again (Tests run: 1478, Failures: 0, Errors: 0, Skipped: 0, BUILD SUCCESS).
  • Reproduced the live config shape in throwaway @TempDir fixtures rather than reasoning about it,
    per the ticket's instruction (fleetd.yaml is gitignored on both hosts, so no test can read the
    real one): aBareClaudeIdAndAnOpencodeProviderPrefixedIdBothFitOneAllowList mixes
    amazon-bedrock/opencode/openai profiles the way the ticket's own measurement described
    (235 reachable models: 151 amazon-bedrock, 69 opencode, 15 openai; 3 configured).

Shape, not instance — other free-form config strings this ticket did not touch

(Reported per instructions; not fixed here.)

  • Profile.baseUrl — handed straight to the launcher as the backend endpoint; no scheme/host
    validation anywhere in FleetConfig.java.
  • Profile.configDir / Profile.cwd — filesystem paths passed through as-is; no existence check.
  • Profile.tokenEnv / gitTokenEnv / gitHostEnv — env-var names; nothing checks the named
    variable actually resolves at load time (only at spawn, via the launcher).
  • Profile.workspace / tabLabel — free-form label templates; no charset/length/placeholder check.
  • Coordinator.selfId — declared free-form; nothing checks it's actually unique across peers
    (peers: is a bare declared list, never cross-checked against a live daemon).
  • memberLoginShell — checked only for a zsh suffix (string endsWith), not that the path exists
    or is executable.

Caveats for review

  • Chose models: { allow: [...] } (wrapped record) over a bare top-level List<ModelEntry> models
    for symmetry with MemberCredentials.allow/Guard's naming convention — a style call, not
    forced by anything structural.
  • validateModels() now also runs inside ConfigRef.reload(), which is slightly more than the
    ticket literally asked for ("at config load") — I judged this necessary because Fleetd.reload()
    already re-runs every other validateXxx() on a hot reload with an explicit comment saying a
    config that would refuse to boot must not slip in through a reload; leaving models: out of that
    set would have been a silent gap in exactly the shape this repo's own CLAUDE.md calls out
    elsewhere as a "my ticket instructions are a defect source" hazard. Flagging this explicitly
    in case the lead judges it out of scope.
## Unit: a central allow-list of usable models (fleetd) ### What changed - New optional top-level config block: `models: { allow: [ { model: <id> }, ... ] }` on `FleetConfig` (`FleetConfig.Models` / `FleetConfig.Models.ModelEntry`). - New `FleetConfig.validateModels()`: when `models.allow:` is non-empty, any `profiles:` entry whose `model:` is not in the allow-list fails config load, naming both the model and the profile. A profile with no `model:` set (e.g. a `subscription: true` profile) is never checked. - Wired into `Fleetd.main()` next to the other `validateXxx()` calls, and into `ConfigRef.reload()` (same reasoning as `validateMembers()`: a config that would refuse to boot must not slip in through a reload) plus `ConfigRef.DEFERRED_KEYS`/`changedDeferredKeys` so a reload correctly reports a changed `models:` block as "needs a restart" rather than silently doing nothing. - Documented as a new, fully-commented-out `models:` section in `fleetd.example.yaml` (this file is the only committed description of the schema, since `fleetd.yaml` is gitignored on every host). - Added `models` to `KNOWN_TOP_LEVEL_KEYS` so it isn't WARNed as an unknown top-level key. ### Both invariants hold - **List is the authority:** `validateModels()` only ever reads `profiles:` and checks each `model:` against `models.allow:` — it can only refuse, never widen, what a `profiles:` edit permits. A dedicated test (`addingAProfileCannotWidenTheAllowListByItself`) pins this directly. - **Absent block = today's behaviour:** absent or empty `models.allow:` makes `validateModels()` a no-op. Existing gitignored `fleetd.yaml` configs on both hosts keep working unchanged after upgrade — no forced migration. ### Shape decisions (asked to state explicitly) - **Not bare strings.** Each allow-list entry is its own `ModelEntry(String model)` record rather than a `List<String>`, specifically so a later unit can hang an on/off flag or a load limit off each entry without changing the YAML shape underneath an operator who already wrote one. - **One flat namespace for both id shapes.** A bare Claude id (`claude-sonnet-5`) and an opencode provider-prefixed id (`openai/gpt-5.6-terra`) are both just opaque strings compared for exact equality — `validateModels()` never parses a provider prefix or branches on a profile's `kind:`. Covered by a live-shape test (`aBareClaudeIdAndAnOpencodeProviderPrefixedIdBothFitOneAllowList`) mixing `amazon-bedrock`/`opencode`/`openai`-backed profiles in one list. ### Out of scope (per the ticket) — not touched No spawn-time enforcement, no runtime on/off switch, no `BackendQuarantine` change, no catalogue lookup against a live backend. `validateModels()` is config-load (and config-reload) validation only. ### Tests `FleetConfigTest` (13 new cases): absent block, empty `allow:`, a profile outside the list refused (naming both), a profile inside the list passing, a profile with no `model:` passing even with an active allow-list, the live multi-provider shape (bare + provider-prefixed ids, one allowed one not), the "editing profiles: alone cannot widen" pin, and `models` present in `KNOWN_TOP_LEVEL_KEYS`. All fixtures use `@TempDir` — no file touches a real `.claude.json` or `fleetd.yaml`. Also updated three existing "coverage" tests that assert every `FleetConfig` top-level component is accounted for somewhere (`ConfigRefTopLevelReportingCoverageTest`, `FleetConfigWithDefaultsPreservesEveryComponentTest`) or triaged into a `ConfigRef` reload class (`ConfigRefTopLevelCoverageTest`, satisfied by classifying `models` as `DEFERRED_KEYS` in `ConfigRef.java` — nothing rebuilds off it after startup, so a reload accepts a change but reports it needs a restart, same shape as `guard:`/`quarantineCooldownSeconds:`). ### Verification (mvn clean install, unpiped, redirected to a file) - Full build: `Tests run: 1478, Failures: 0, Errors: 0, Skipped: 0` — `BUILD SUCCESS`. - **Test fails without the fix**, confirmed live: saved a patch of the three production files (`FleetConfig.java`, `Fleetd.java`, `ConfigRef.java`), reverted them with `git checkout -- <files>` (kept the new tests), and ran `mvn test -Dtest=FleetConfigTest,ConfigRefTopLevelReportingCoverageTest,FleetConfigWithDefaultsPreservesEveryComponentTest,ConfigRefTopLevelCoverageTest`: compilation failure — `cannot find symbol: class Models` (in `ConfigRefTopLevelReportingCoverageTest`/`FleetConfigWithDefaultsPreservesEveryComponentTest`) and `cannot find symbol: method validateModels()` (in `FleetConfigTest`, 8 call sites). Restored the patch with `git apply`, re-ran the full build: green again (`Tests run: 1478, Failures: 0, Errors: 0, Skipped: 0`, `BUILD SUCCESS`). - Reproduced the live config shape in throwaway `@TempDir` fixtures rather than reasoning about it, per the ticket's instruction (`fleetd.yaml` is gitignored on both hosts, so no test can read the real one): `aBareClaudeIdAndAnOpencodeProviderPrefixedIdBothFitOneAllowList` mixes `amazon-bedrock`/`opencode`/`openai` profiles the way the ticket's own measurement described (235 reachable models: 151 amazon-bedrock, 69 opencode, 15 openai; 3 configured). ### Shape, not instance — other free-form config strings this ticket did not touch (Reported per instructions; not fixed here.) - `Profile.baseUrl` — handed straight to the launcher as the backend endpoint; no scheme/host validation anywhere in `FleetConfig.java`. - `Profile.configDir` / `Profile.cwd` — filesystem paths passed through as-is; no existence check. - `Profile.tokenEnv` / `gitTokenEnv` / `gitHostEnv` — env-var *names*; nothing checks the named variable actually resolves at load time (only at spawn, via the launcher). - `Profile.workspace` / `tabLabel` — free-form label templates; no charset/length/placeholder check. - `Coordinator.selfId` — declared free-form; nothing checks it's actually unique across peers (`peers:` is a bare declared list, never cross-checked against a live daemon). - `memberLoginShell` — checked only for a `zsh` suffix (string `endsWith`), not that the path exists or is executable. ### Caveats for review - Chose `models: { allow: [...] }` (wrapped record) over a bare top-level `List<ModelEntry> models` for symmetry with `MemberCredentials.allow`/`Guard`'s naming convention — a style call, not forced by anything structural. - `validateModels()` now also runs inside `ConfigRef.reload()`, which is slightly more than the ticket literally asked for ("at config load") — I judged this necessary because `Fleetd.reload()` already re-runs every other `validateXxx()` on a hot reload with an explicit comment saying a config that would refuse to boot must not slip in through a reload; leaving `models:` out of that set would have been a silent gap in exactly the shape this repo's own `CLAUDE.md` calls out elsewhere as a "my ticket instructions are a defect source" hazard. Flagging this explicitly in case the lead judges it out of scope.
agent added 1 commit 2026-09-10 03:10:28 +02:00
fleetd: central allow-list of usable models (models: + validateModels())
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e7b33fe3a0 
Add an optional top-level `models:` block (Models{allow: List<ModelEntry>})
naming the models any profiles: entry may use. Absent/empty allow: keeps
today's behaviour exactly (no check, no warning). When configured,
FleetConfig.validateModels() fails config load (and reload, via ConfigRef)
naming both the model and the profile, if any profile's model: is outside
the list. The check is one-way: editing profiles: alone can never widen
what is permitted, only models.allow: can.

Wired into Fleetd.main() alongside the other validateXxx() calls, and into
ConfigRef.reload()/DEFERRED_KEYS so a bad edit can't slip in through a
reload either. Each ModelEntry is its own record (not a bare string) so a
later unit can add per-model on/off or load-limit state without changing
the YAML shape. One flat string namespace covers both a bare Claude id and
an opencode provider-prefixed id.
ltms commented 2026-09-10 03:44:43 +02:00
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Scope note: there is a seventh unpinned startup call, not six

Measured just now while reviewing PR #401 (fleetd #395), which has since been merged as 7180b1a.

#395 added a new startup reporter, Fleetd.reportExhaustedPatternGap(FleetConfig), called from
Fleetd.java:140. I deleted that call and ran the full suite:

Tests run: 1472, Failures: 0, Errors: 0, Skipped: 0
BUILD SUCCESS

So the startup call is not pinned. The report's own behaviour is well tested — the worker's
two new test classes catch every mutation I asked for inside the method. What no test catches is
whether anybody still calls it.

This is the same shape as the six FleetConfig.validateXxx() calls this ticket already covers.
I found that gap the same way on PR #398: deleting both validateModels() call sites left
1478 tests green.

What this changes about this ticket

Please treat the acceptance criteria as covering the startup sequence, not a list of six
method names. Concretely:

  1. Removing any one of the six cfg.validateXxx() calls fails a test.
  2. Removing reportExhaustedPatternGap(cfg) fails a test.
  3. A newly added public validateXxx() on FleetConfig that nobody wires into startup also
    fails a test.

Criterion 3 is the one that matters most, because it is the only one that survives the next person
adding an eighth call. A test that hardcodes seven names is a list that goes stale the day #402
lands — exactly how this gap appeared in the first place.

Note the two kinds are not identical and a check should not pretend they are: a validateXxx()
throws and refuses startup, while reportExhaustedPatternGap only logs. Whatever mechanism proves
"it is called" has to work for a method whose only effect is a log line.

Recorded in the #395 merge commit and in the Features wiki entry as a known gap owned by this
ticket, so it is not lost if this comment is missed.

## Scope note: there is a seventh unpinned startup call, not six Measured just now while reviewing PR #401 (fleetd #395), which has since been merged as `7180b1a`. #395 added a new startup reporter, `Fleetd.reportExhaustedPatternGap(FleetConfig)`, called from `Fleetd.java:140`. I deleted that call and ran the full suite: ``` Tests run: 1472, Failures: 0, Errors: 0, Skipped: 0 BUILD SUCCESS ``` So the startup **call** is not pinned. The report's own behaviour *is* well tested — the worker's two new test classes catch every mutation I asked for inside the method. What no test catches is whether anybody still calls it. This is the same shape as the six `FleetConfig.validateXxx()` calls this ticket already covers. I found that gap the same way on PR #398: deleting both `validateModels()` call sites left **1478 tests green**. ### What this changes about this ticket Please treat the acceptance criteria as covering the startup **sequence**, not a list of six method names. Concretely: 1. Removing **any** one of the six `cfg.validateXxx()` calls fails a test. 2. Removing `reportExhaustedPatternGap(cfg)` fails a test. 3. A **newly added** public `validateXxx()` on `FleetConfig` that nobody wires into startup also fails a test. Criterion 3 is the one that matters most, because it is the only one that survives the next person adding an eighth call. A test that hardcodes seven names is a list that goes stale the day #402 lands — exactly how this gap appeared in the first place. Note the two kinds are not identical and a check should not pretend they are: a `validateXxx()` throws and refuses startup, while `reportExhaustedPatternGap` only logs. Whatever mechanism proves "it is called" has to work for a method whose only effect is a log line. Recorded in the #395 merge commit and in the Features wiki entry as a known gap owned by this ticket, so it is not lost if this comment is missed.
agent added 1 commit 2026-09-10 03:56:29 +02:00
fleetd #398 follow-up: pin the startup validators with a reflective validateAll()
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b540a1744b 
Mutation testing found that deleting a cfg.validateXxx() call from
Fleetd.main left the full suite green: every test called a validator
directly and none exercised main as the caller.

FleetConfig.validateAll() sweeps this class's own public no-arg void
validateXxx() methods by reflection and invokes each in alphabetical
order, so a newly written validator is wired into both callers
(Fleetd.main and ConfigRef.reload) with no second step to forget.
FleetdStartupValidationTest calls the real Fleetd.main with six configs,
each failing exactly one validator.

Recovered by the lead: the worker's agent died mid-turn with this work
uncommitted, and had left the startup call commented out as
'// MUTATION-TEST-TEMP: cfg.validateAll();' from its own mutation run.
I restored the call before committing. Build after restoring:
Tests run: 1491, Failures: 0, BUILD SUCCESS.

NOT covered, and not claimed to be: the five log-only reporters in
main (reportRequiredSecrets, reportGitHostShape, reportMemberTrustModel,
reportMemberCredentialsGap, and reportExhaustedPatternGap on current
main) are not validateXxx() methods, so the sweep does not reach them
and their call sites stay unpinned.
ltms commented 2026-09-10 04:00:49 +02:00
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Lead review — the follow-up work was recovered from a dead worker, and it is good

First, the recovery. The worker's agent died mid-turn (herdr error [agent_not_found]) with all of this work uncommitted in its worktree, and with the startup call left disabled from its own mutation run:

// MUTATION-TEST-TEMP: cfg.validateAll();

So the tree as found had no startup validation at all. I restored the call, built, and committed the work myself as b540a17, pushed to this branch. Nothing was lost. Worth recording that git -C <worktree> status is what saved it — the ticket looked failed and the work was complete.

What the follow-up does

FleetConfig.validateAll() sweeps this class's own public, no-arg, void validateXxx() methods by reflection and invokes each in alphabetical order. Both real call sites — Fleetd.main and ConfigRef.reload() — call that one method instead of six. FleetdStartupValidationTest then calls the real Fleetd.main with six configs, each failing exactly one validator.

Calling the real main is the right call and it is safe for a reason the test states correctly: validateAll() runs after SubscriptionGuard.assertPrimaryClean and before main opens the herdr socket or binds Javalin, so an intentionally invalid config always throws first.

Verified myself

Build after I restored the call: Tests run: 1491, Failures: 0, Errors: 0, Skipped: 0, BUILD SUCCESS, 0 compile errors.

Mutation A — the reload call site (the caller the worker did not mutate). Replaced fresh.validateAll(); in ConfigRef.reload() with a no-op:

[ERROR] Tests run: 1491, Failures: 2
ConfigRefTest.aFileThatFailsAValidatorKeepsTheRunningConfig:198 expected: <false> but was: <true>
ConfigRefTest.invalidChartersRefuseReloadAndKeepTheRunningConfig:111 expected: <false> but was: <true>

Caught. Both real call sites are now pinned.

Mutation B — NOT caught, and it makes a claim in the tests false

I reverted validateAll() to a hardcoded list of today's six calls, behaviour-identical:

Tests run: 1491, Failures: 0, Errors: 0, Skipped: 0
BUILD SUCCESS

So the reflective sweep is not pinned to validateAll(). theSweepMechanismIsGenericNotHardcodedToFleetConfigsSixNames proves invokeAllValidators is generic (on an unrelated class), and validateAllReachesEveryOneOfTodaysSixValidators proves today's six run — and a hardcoded list satisfies both. Nothing connects the two.

That made this sentence in FleetConfigValidateAllTest's javadoc false:

removing cfg.validateAll(); from either real call site, or reverting FleetConfig#validateAll() to a hardcoded list of method calls, now fails a test in this module.

First half true. Second half measured green.

The interaction is the actual finding. The denominator test fleetConfigDeclaresExactlyTheseSixValidatorsToday() is a genuine tripwire — an equality assertion, so declaring a seventh validator does fail it. But its failure message told the author:

this is not a failure by itself (validateAll() sweeps whatever is here, by construction), it is this test's own denominator; update the expected set to match

Put those two facts together: if the sweep is ever replaced by a name list, the one assertion that fires tells whoever added the seventh validator that it is safe to just bump the number. The tripwire would hand back a false all-clear at the exact moment it fired. This is the same shape as #334 — a guard well pinned by tests whose excusing comment was false.

I fixed both strings myself rather than respawning a worker for two sentences: the javadoc now states what I measured, and the assertion message now says "confirm validateAll() still delegates to invokeAllValidators(this) first, then update the expected set" — turning a false assurance into the instruction it should have been.

Design verdict: the reflection is a convenience, and that is fine. The guarantee against a forgotten seventh validator is the denominator test failing. That is now what the code says.

Still not covered, and I am not asking for it here

validateAll() only reaches validateXxx() methods on FleetConfig. It does not reach the five log-only reporters in main — reportRequiredSecrets, reportGitHostShape, reportMemberTrustModel, reportMemberCredentialsGap, and reportExhaustedPatternGap (added by #395 on current main, so not on this branch). None of those call sites is pinned, and deleting any one still ships a green build.

So my earlier comment on this PR was narrower than the truth: I said "a seventh unpinned startup call". It is a seventh plus five reporters. FleetdStartupValidationTest is the right place to close them, because they need a caller-level test and it already boots the real main. They differ from validators in one way that matters: a validator throws, while a reporter only logs, so pinning a reporter means asserting on a log appender rather than on an exception.

Not blocking this merge. Filing it separately so the number is right.

## Lead review — the follow-up work was recovered from a dead worker, and it is good **First, the recovery.** The worker's agent died mid-turn (`herdr error [agent_not_found]`) with all of this work **uncommitted** in its worktree, and with the startup call left disabled from its own mutation run: ```java // MUTATION-TEST-TEMP: cfg.validateAll(); ``` So the tree as found had **no startup validation at all**. I restored the call, built, and committed the work myself as `b540a17`, pushed to this branch. Nothing was lost. Worth recording that `git -C <worktree> status` is what saved it — the ticket looked failed and the work was complete. ## What the follow-up does `FleetConfig.validateAll()` sweeps this class's own public, no-arg, `void` `validateXxx()` methods by reflection and invokes each in alphabetical order. Both real call sites — `Fleetd.main` and `ConfigRef.reload()` — call that one method instead of six. `FleetdStartupValidationTest` then calls the **real** `Fleetd.main` with six configs, each failing exactly one validator. Calling the real `main` is the right call and it is safe for a reason the test states correctly: `validateAll()` runs after `SubscriptionGuard.assertPrimaryClean` and before `main` opens the herdr socket or binds Javalin, so an intentionally invalid config always throws first. ## Verified myself **Build after I restored the call:** `Tests run: 1491, Failures: 0, Errors: 0, Skipped: 0`, **BUILD SUCCESS**, 0 compile errors. **Mutation A — the reload call site (the caller the worker did not mutate).** Replaced `fresh.validateAll();` in `ConfigRef.reload()` with a no-op: ``` [ERROR] Tests run: 1491, Failures: 2 ConfigRefTest.aFileThatFailsAValidatorKeepsTheRunningConfig:198 expected: <false> but was: <true> ConfigRefTest.invalidChartersRefuseReloadAndKeepTheRunningConfig:111 expected: <false> but was: <true> ``` **Caught.** Both real call sites are now pinned. ## Mutation B — NOT caught, and it makes a claim in the tests false I reverted `validateAll()` to a hardcoded list of today's six calls, behaviour-identical: ``` Tests run: 1491, Failures: 0, Errors: 0, Skipped: 0 BUILD SUCCESS ``` So the reflective sweep is **not pinned to `validateAll()`**. `theSweepMechanismIsGenericNotHardcodedToFleetConfigsSixNames` proves `invokeAllValidators` is generic (on an unrelated class), and `validateAllReachesEveryOneOfTodaysSixValidators` proves today's six run — and a hardcoded list satisfies both. Nothing connects the two. That made this sentence in `FleetConfigValidateAllTest`'s javadoc false: > removing `cfg.validateAll();` from either real call site, **or reverting `FleetConfig#validateAll()` to a hardcoded list of method calls**, now fails a test in this module. First half true. Second half measured green. **The interaction is the actual finding.** The denominator test `fleetConfigDeclaresExactlyTheseSixValidatorsToday()` is a genuine tripwire — an equality assertion, so declaring a seventh validator does fail it. But its failure message told the author: > this is not a failure by itself (**validateAll() sweeps whatever is here, by construction**), it is this test's own denominator; update the expected set to match Put those two facts together: if the sweep is ever replaced by a name list, the one assertion that fires tells whoever added the seventh validator that it is safe to just bump the number. The tripwire would hand back a false all-clear at the exact moment it fired. **This is the same shape as #334 — a guard well pinned by tests whose excusing comment was false.** I fixed both strings myself rather than respawning a worker for two sentences: the javadoc now states what I measured, and the assertion message now says "confirm `validateAll()` still delegates to `invokeAllValidators(this)` **first**, then update the expected set" — turning a false assurance into the instruction it should have been. Design verdict: the reflection is a convenience, and that is fine. The guarantee against a forgotten seventh validator is the denominator test failing. That is now what the code says. ## Still not covered, and I am not asking for it here `validateAll()` only reaches `validateXxx()` methods on `FleetConfig`. It does not reach the **five log-only reporters** in `main` — `reportRequiredSecrets`, `reportGitHostShape`, `reportMemberTrustModel`, `reportMemberCredentialsGap`, and `reportExhaustedPatternGap` (added by #395 on current `main`, so not on this branch). None of those call sites is pinned, and deleting any one still ships a green build. So my earlier comment on this PR was narrower than the truth: I said "a seventh unpinned startup call". It is a seventh **plus five reporters**. `FleetdStartupValidationTest` is the right place to close them, because they need a caller-level test and it already boots the real `main`. They differ from validators in one way that matters: a validator throws, while a reporter only logs, so pinning a reporter means asserting on a log appender rather than on an exception. Not blocking this merge. Filing it separately so the number is right.
agent added 1 commit 2026-09-10 04:01:52 +02:00
t398: correct two false statements in FleetConfigValidateAllTest
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af4c88d54b 
Measured at review: reverting validateAll() to a hardcoded list of
today's six calls leaves the suite green (1491 tests, 0 failures). The
class javadoc claimed that mutation fails a test. It does not — claim 1
pins the generic helper on an unrelated class, claim 2 pins today's six,
and a hardcoded list satisfies both.

The interaction was the real hazard. The denominator assertion IS a
tripwire (declaring a seventh validator fails it), but its failure
message said the sweep reaches new validators 'by construction' and told
the author to just update the expected set. If the sweep were ever
replaced by a name list, the one assertion that fires would hand back a
false all-clear at the moment it fired.

Javadoc now states the measurement, and names the denominator test as
the actual guarantee. The assertion message now says to confirm
validateAll() still delegates to invokeAllValidators(this) BEFORE
updating the expected set.
ltms commented 2026-09-10 07:16:01 +02:00
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Merged into main as ed99c20 ("Merge #398: a central allow-list of usable models, with the startup validators pinned"). Verified with git merge-base --is-ancestor origin/worker/models-allowlist-aa9e9b-3 origin/main — the branch tip af4c88d is contained in main.

The merge was done locally and pushed, so this PR stayed open. Closing it now. Spawn-time enforcement of the on/off state is the follow-up, tracked in #422 (PR #429).

Merged into `main` as `ed99c20` ("Merge #398: a central allow-list of usable models, with the startup validators pinned"). Verified with `git merge-base --is-ancestor origin/worker/models-allowlist-aa9e9b-3 origin/main` — the branch tip `af4c88d` is contained in `main`. The merge was done locally and pushed, so this PR stayed open. Closing it now. Spawn-time enforcement of the on/off state is the follow-up, tracked in #422 (PR #429).
ltms closed this pull request 2026-09-10 07:16:09 +02:00
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blocked
Cannot start until something else lands. The body says what.
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Merged and green, but never shown working on the running daemon. Not the same as done.
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Scope, files and acceptance criteria are written. A worker can be briefed from the body alone.
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A feature that compiles, passes tests, and ships turned off. Nine recurrences and counting.
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Reference: fleet/fleetd#398
Delete Branch "worker/models-allowlist-aa9e9b-3"

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