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Author SHA1 Message Date
ltms 49a5875586 Merge #583: fleetd #582 — assert pending message-id cleanup at every publish cleanup site
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All ten assertions proven live: six by the implementer, the last four by the lead.
One contract build with four deleted removal lines produced exactly four named failures,
one per site, with the total unchanged at 1825.
2026-09-12 15:52:25 +02:00
Dai Ha 634d33b50b Merge worker/562-loop-health-wiring-test-99611c-5
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2026-09-12 20:28:14 +07:00
Dai Ha 1db79bcaa9 Merge worker/581-completionresolver-cas-sites-0542b7-6 2026-09-12 20:28:14 +07:00
Dai Ha 4507bc5a70 Merge worker/571-attempted-outcome-5739f7-2 2026-09-12 20:28:14 +07:00
Dai Ha d7239ed23b fleetd #571: pin FleetMcp.formatReply's TIMED_OUT_UNCONFIRMED wording
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CORRECTION 5 on the ticket: mutating the new arm's message text to the
queued/working arm's text survived every existing test, because nothing
asserted the specific wording. This adds one test that asserts the
unconfirmed-delivery message and asserts it does NOT carry the
queued/working arm's retry invitation — the distinction #571 exists for.

No production code changes; formatReply's TIMED_OUT_UNCONFIRMED arm was
already correct.
2026-09-12 20:19:37 +07:00
Dai Ha dfeb9340b4 fleetd #581: cover completion CAS removals
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2026-09-12 20:19:20 +07:00
Dai Ha 1513d4f260 fleetd #562 follow-up: extract loopHealthSource factory, pin its wiring
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PR #579's inline `new FleetMcp.LoopHealthSource(poller::health, ...)` in
Fleetd.main had nothing a test could call directly. Measured: replacing
poller::health with a constant () -> RUNNING compiled clean and left all
1771 tests green (see issue #562 comment "HOLD on PR #579").

Extracts the inline construction to a package-private Fleetd.loopHealthSource
factory, the same style as the sibling capacitySource/healthCoverageSource
factories, and adds FleetdLoopHealthSourceWiringTest with three separate
assertions: the statusPoller half, the sessionReaper half, and the
reaper == null branch (still STOPPED).
2026-09-12 20:16:23 +07:00
Dai Ha 4ca7d72303 #582: assert pending message-id cleanup
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2026-09-12 20:15:48 +07:00
Dai Ha c0545d003d fleetd #571: make FleetApp.writeReply's inner Outcome switch exhaustive, no default
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Ticket comments (17126, 17127) corrected the original acceptance criterion after this
unit was already in flight: a hand-listed grep for the enum's constant names goes stale
silently the moment a new constant lands, so the compiler must be the enumeration instead.
sendOutcomeLabel (MessageService.java) and formatReply (FleetMcp.java) were already
default-free switch expressions. The one gap was writeReply's inner "status" switch, which
had `default -> "done"` — the exact value that would have lied about TIMED_OUT_UNCONFIRMED.
Remove the default and list every Outcome constant explicitly; REPLIED, COMPLETED_UNREPLIED,
QUESTION and STALE_TURN get an arm too even though the outer switch always dispatches them
first, so the inner switch stays exhaustive on its own. The outer switch (a statement, not
an expression) keeps its own default — Java does not require exhaustiveness there regardless,
and "everything not terminal is a 202" is an intentional catch-all.

Verified with the proof the ticket asked for: added a scratch 11th Outcome constant after
deleting all default arms and confirmed all three switch-expression sites (and no test file)
fail to compile without an arm for it, one at a time, then removed the scratch constant.
2026-09-12 19:28:59 +07:00
Dai Ha 275ac0d251 fleetd #562: surface loop health
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2026-09-12 19:26:37 +07:00
Dai Ha c1e06c9e12 fleetd #571: add TIMED_OUT_UNCONFIRMED so an ATTEMPTED delivery is not reported as never-arriving
MessageService.send's TimeoutException branch collapsed Injector.Cancellation.ATTEMPTED
(fleetd #551 — the send call was made but its outcome is unknown) into
Outcome.TIMED_OUT_QUEUED, which promises the caller the message will never arrive. On this
route agent.prompt may already have pasted and submitted the text, so a caller's natural
recovery (resend) risks a double delivery.

Add Outcome.TIMED_OUT_UNCONFIRMED and route ATTEMPTED to it. Update the three readers found
by searching for the enum's constant names (not `Outcome.`, which misses FleetMcp's
unqualified `case REPLIED ->` switches and would false-positive on ConfigRef's unrelated
Outcome record):
 - MessageService.sendOutcomeLabel: add it to the "timeout" metric label group.
 - FleetMcp.formatReply: its own case, warning against a blind retry (distinct from the
   generic "retry or poll status" message the other timeouts get).
 - FleetApp.writeReply: its own "unconfirmed" status and detail text, so it no longer falls
   through the switch's default -> "done" arm, which would have reported "the delegation
   completed" for the one case where delivery is unconfirmed.
2026-09-12 19:21:10 +07:00
Dai Ha 204da67d66 Merge #576: fleetd #575 — one finally covers answer()'s STALE_TURN exit
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Third instance of the #572 shape on this file: one invariant kept at N sites,
asserted at fewer than N. Here answer()'s inner try opened AFTER the Task
lookup/registration and the STALE_TURN early return, so that return was covered
only by a hand-rolled copy of the finally's cleanup pair. The fix widens the try
upward and deletes the copy, so every exit runs the one finally exactly once.
rendezvous.open(workerSession) correctly stays outside it — nothing to clean if
it never opened.

This fixed no live leak, and the code comment says so: neither
rendezvous.answerAsk nor clearAsyncQuestion(turnId, false) can throw, so nothing
ever left through the old gap uncovered. It is a structure fix, the ticket's own
fallback case.

Verified here, not taken from the worker's report:
- baseline on the branch: 1766 tests, 0 failures, from Maven and from an
  independent sum over target/surefire-reports/*.txt.
- my own mutation, located fresh: move the inner `try {` back down below the
  STALE_TURN return — the exact pre-fix structure, minus the hand-rolled pair.
  Result: 1766 run, exactly 1 failure, and it is the new test —
  MessageServiceTest.answerLosingTheRaceToAnAlreadyAnsweredAskStillReturnsStaleTurnAndCleansUpOnce:545
  "the forward waiter this answer() call opened must be closed after a STALE_TURN
  return". One failure, not a crowd: the new test is the only thing holding this
  path.
- the worker's own mutation removed the whole finally and took 8 other tests with
  it. That proves the finally runs; it does not prove the STALE_TURN path reaches
  it. Mine does.

The new test hook answerAskLapseRaceHookForTest follows the file's existing
askTimeoutRaceHookForTest convention.

Closes #575.
2026-09-12 19:05:00 +07:00
Dai Ha b091c51eee fleetd #575: widen answer()'s try so one finally covers its STALE_TURN exit
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The waiter cleanup pair (asyncTasksByWaiter.remove + rendezvous.close) was
duplicated: two sites sit in a finally, the third was hand-rolled inline
before answer()'s early STALE_TURN return, structurally outside any finally.

Both rendezvous.answerAsk and clearAsyncQuestion(turnId, false) are total
(cannot throw), so the gap never leaked in practice. But the duplicate was
untested: mutating it away left all 1765 tests green, while the two
finally-protected sites are each killed by 8-36 tests. Same shape as #572.

Fix: widen the try to wrap the Task registration and the STALE_TURN check,
so the single finally covers every exit and the hand-rolled copy is gone.
Added a race hook + regression test that deterministically reproduces the
'ask lapsed between the lookup and the unblock' case and proves the fix
still returns STALE_TURN and cleans up exactly once.
2026-09-12 18:56:02 +07:00
ltms 84d631b030 Merge #572: answer()'s session-lock release is pinned on all four exits
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fleetd #572. MessageService releases its per-session lock in a finally at two sites. Removing the
send() one failed 22 tests and errored 1. Removing the answer() one left the whole suite green.
Skip that unlock and the thread holds the session lock forever, so every later send or answer to
that session blocks permanently — no exception, no log line.

Tests only. Against current main the diff is one file, MessageServiceTest.java, +178 lines.

Four new tests, one per exit of answer(): normal REPLIED, TIMED_OUT_WORKING, the ExecutionException
rethrow, and the InterruptedException rethrow. Each proves REACQUISITION rather than the return
value — a bounded follow-up send on the SAME session must not come back BUSY, and send reports BUSY
only when tryLock itself timed out, so a non-BUSY probe is specifically evidence the lock was free.

Lead verification, re-running rather than accepting the worker's numbers, on the branch merged with
main at 3f8c38f:
  baseline   -> exit 0, 1765 tests from Maven and an independent sum over 131 reports (1761 + 4)
  mutation L -> BUILD FAILURE, exactly 4 failures, all four new tests by name

THE TRAP THE WORKER CAUGHT ITSELF, which is the most valuable thing in this PR. Their first draft of
the TIMED_OUT_WORKING test called answer() inline on the test thread and then probed with send() on
that same thread. It FALSE-PASSED under the mutation: lock is a ReentrantLock, so the same thread
reenters for free whether or not unlock() ran. A same-thread probe proves reentrancy, not release.
They found it only because they actually ran the mutation instead of trusting a green baseline, moved
answer() onto a background thread, and re-proved the kill. The pitfall is now documented in the test's
own javadoc, with the measurement that exposed it.

NOTE FOR ANYONE RE-RUNNING THE TICKET'S RECIPE: the ticket records `sed '1218s|...'`, measured before
#551 merged. #551 edited MessageService.java, and the line is now 1231. Locate it fresh — a
line-anchored sed against a stale number mutates the wrong line and reports a meaningless green. The
anchor count is the check that catches this: `grep -Fxc '            lock.unlock();'` must read 2
pristine and 1 after.

Shape reported by the worker, not investigated and not fixed: the same two-line cleanup
`asyncTasksByWaiter.remove(reply); rendezvous.close(...)` appears at three sites — send()'s finally,
answer()'s inner finally, and answer()'s inline STALE_TURN early return, which is NOT inside a
finally. Same maintained-at-N-sites shape as this finding. Filed separately.
2026-09-12 13:30:22 +02:00
ltms 3f8c38fc54 Merge #567: pin LeadMailbox.inspect's probe-channel close
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fleetd #567. LeadMailbox.inspect opens a probe channel and closes it in a finally. The production
code was already correct; nothing asserted it, so a future refactor could drop the close and leak an
AMQP channel per inspect() call with the suite green.

Test only. LeadMailbox.java is untouched — sha256 a2cd99be77345b7e... before and after.

The test asserts the CONSEQUENCE rather than the return value: it caps the connection at three
channels (LeadMailbox uses two, consume and publish), runs a successful inspect, then requires a
replacement channel. If the probe is left open, the broker has no channel number left and
createChannel() returns null. A test that only checked inspect()'s MailboxState would pass under the
mutation, which is the whole reason this hole existed.

Lead verification, re-running rather than accepting the worker's numbers, on the branch merged with
main at ed2fd66:
  mvn -o clean install -Pcontract  ->  exit 0, 1792 tests from Maven and from an independent sum
                                       over 137 surefire reports.
  1792 = 1761 (main) + 30 (contract-only) + 1 (new), which also confirms the default-profile count
  is untouched: the new test is in an @Tag("contract") class.

My own mutation, located fresh rather than assuming the reported line number: delete
LeadMailbox.java:338 `probe.close();`, anchor by grep -Fxc 1 -> 0. Result under -Pcontract: exactly
1 failure, inspectClosesItsSuccessfulProbeChannel:226, "the replacement channel was null". Restored
to a2cd99be77345b7e..., git status --short empty.

THE PROFILE TRAP THIS TICKET EXISTS BECAUSE OF. An earlier sweep worker instrumented this line, saw
zero hits under the DEFAULT profile, and concluded "no test executes this line". That was false:
fleetd/pom.xml:264 sets excludedGroups=contract, so the covering tests were excluded from the run,
not absent. A surviving mutation has THREE causes — never executes, executes with nothing asserted,
or the covering tests were excluded from the profile — and only naming the profile tells them apart.
The true finding was covered-but-unasserted.

Known fragility, recorded rather than fixed: the test's channel cap of three assumes LeadMailbox
holds exactly two channels. If it ever holds more, this test fails loudly, which is fine. If it ever
holds fewer, a leak would no longer exhaust the cap and the test would go vacuous silently. Worth
re-checking if LeadMailbox's channel usage changes.

Not covered, and stated rather than faked: the defensive catch (RuntimeException) around the passive
declare, which needs a connection dying between createChannel() and the declare landing. The
method's own javadoc already admits that branch is unproven; the worker did not invent a test for it.
2026-09-12 13:26:30 +02:00
Dai Ha a4dbc8f8b7 fleetd #572: pin answer()'s session-lock release across all four exits
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MessageService.answer() releases its per-session lock in an outer finally
(MessageService.java:1218) that mutation testing showed was covered but
unasserted: removing that line left all 1750 existing tests green, because
every existing test on this path checks answer()'s return value, never that
the lock it took is actually reacquirable afterward. If it leaked, a session
would be wedged forever with no exception and no log line.

Adds four tests, one per exit of answer() (normal REPLIED reply,
TIMED_OUT_WORKING, ExecutionException rethrow, InterruptedException
rethrow), each proving the lock is reacquirable via a bounded (300ms)
follow-up send on the same session rather than merely checking answer()'s
own outcome. No production change.
2026-09-12 18:23:54 +07:00
ltms ed2fd6646a Merge #561: the completion/session listener fan-out survives either half throwing, and both sites are pinned
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fleetd #561. Fleetd composed two TurnListener halves as `completion.X(); sessions.X();`, so a throw
from the first half skipped the second. The anonymous class is now a package-private factory,
Fleetd.turnListener(completion, sessions), built on two helpers that always attempt both halves and
rethrow whatever escaped — a second failure attached with addSuppressed rather than dropped, so it
still reaches StatusPoller's catch (Throwable).

The wiring at Fleetd.java:498 calls that factory, so the seam under test is the real caller.

Lead verification, on a merged tree, re-running the checks rather than accepting the worker's:
exit 0, 1761 tests from Maven and from an independent sum over 131 surefire reports.

The interesting part is what the first round MISSED. Two helpers maintain one invariant — "the
second half always runs" — and the first round's five tests asserted it at only one site. Measured:

  bothMustRun                      reverted to the pre-fix bug -> 1 named failure   (pinned)
  bothMustRunKeepingSecondResult   the SAME bug                -> 1755/1755 GREEN   (unpinned)
  failure.addSuppressed(t) deleted                             -> 1755/1755 GREEN   (unpinned)

Both survivors are now killed by new tests, re-verified by the lead after the fix:
sessionHalfStillRunsWhenTheCompletionHalfThrowsSynchronouslyForPostAction and
bothFailuresEscapeWhenBothHalvesThrowDistinctExceptions, each failing alone under its own mutation.

The rule this cost us, worth carrying: COUNT ASSERTIONS PER SITE, NOT PER INVARIANT. The total being
non-zero is what hides a zero at one site, and extracting a shared helper makes it worse rather than
better — it does not reduce the number of sites, only how many are visible. Credit to the fleet01
lead, who predicted this shape before an instance was found.

onDelivered stays deliberately unguarded. Its comment now gives the real reason —
CompletionResolver.captureBaseline already catches RuntimeException around its scrape and fails open,
so that half does not realistically throw — instead of the previous reason, which was true but about
registration rather than about this pair. A correct conclusion resting on a wrong premise reads
exactly like a verified one.
2026-09-12 13:20:56 +02:00
Dai Ha 5441a2b321 fleetd #567: assert inspect closes probe channel
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2026-09-12 18:19:43 +07:00
ltms 384867dfa3 Merge #551: ATTEMPTED is its own cancellation answer, and the javadoc stops claiming a timed-out send never arrived
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fleetd #551. The injector polls a queued entry off the queue and marks it ATTEMPTED BEFORE the
irreversible AgentControl#send call, not after. So a Throwable escaping that call can never leave
the entry QUEUED at the head (the #546 re-send hazard) and can never be recorded as a confident
NOT_DELIVERED for text that may already be in the pane.

Cancellation.ATTEMPTED is added as a third answer. NOT_DELIVERED stays reserved for confirmed
absence: the readiness grace expiring, drop(), or a herdr *_not_found error, which the rest of this
codebase already reads as definitely-absent rather than inconclusive.

Also fixes three javadoc/comment sites that claimed a timed-out send definitely did not arrive:
TIMED_OUT_QUEUED, hasQueuedDelivery, the queuedDeliveries field, and the comment in send()'s timeout
branch. Two claims were wrong, not merely stale: "on every route it will not arrive later" is false
on the ATTEMPTED route, and "may already hold a partial paste" understates it — agent.prompt pastes
AND SUBMITS in one call, so the target may hold a complete, running turn.

Verified by the lead on a merged tree: mvn -o clean install from fleetd/, exit 0, 1754 tests from
Maven and from an independent sum over 130 surefire reports. Mutation: folding ATTEMPTED back into
NOT_DELIVERED in cancellationOf gives 3 red, each naming the property
(anErrorFromSendRemovesTheMessageAndMarksItAttempted:740,
aHerdrExceptionFromSendStillSurfacesButNowReportsAttempted:781,
aHerdrExceptionAfterThePasteIsNeverRecordedAsConfidentlyNotDelivered:806).

The final round is comment-only, proven mechanically rather than by reading: stripping every comment
from MessageService.java before and after and collapsing whitespace gives byte-identical code.
2026-09-12 13:19:20 +02:00
Dai Ha f40c19ecf0 fleetd #551 shape sweep: fix stale ATTEMPTED-route javadoc/comments in MessageService
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hasQueuedDelivery's javadoc, the queuedDeliveries field javadoc, and a code
comment in send()'s timeout path all still made two claims that ATTEMPTED
(fleetd #551) falsifies: a blanket "the message will not arrive later" across
every route, and "the terminal may already hold a partial paste" — but
agent.prompt pastes AND submits in one call, so the target may hold a
complete, already-submitted turn. Each now names the three Injector.Cancellation
routes (CANCELLED, NOT_DELIVERED, ATTEMPTED) and says plainly that only the
first two establish the message will not arrive later.

Comment/javadoc only. No behaviour change: Injector.java is untouched
(sha256 0c689b6cf36275c0da45497a74b2bd4f5a3d80c4dbda77d46670c66004e53b69) and
no test was added. mvn -o clean install: BUILD SUCCESS, Tests run: 1754,
Failures: 0, Errors: 0 (unchanged from before this commit).
2026-09-12 18:13:06 +07:00
Dai Ha 034e17bb32 fleetd #561 follow-up: pin the session half of bothMustRunKeepingSecondResult
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Two helpers maintain one invariant (the second callback half always runs,
even when the first throws): bothMustRun and bothMustRunKeepingSecondResult.
Only bothMustRun's "session half still runs" direction was asserted
(sessionHalfStillRunsWhenTheCompletionHalfThrowsSynchronously, via
onTurnComplete). bothMustRunKeepingSecondResult — the helper
onTurnCompleteWithPostAction uses — could be reverted to the pre-#561
broken shape and the suite stayed green.

Adds two tests to FleetdTurnListenerCompositionTest:
- sessionHalfStillRunsWhenTheCompletionHalfThrowsSynchronouslyForPostAction:
  mirrors the existing onTurnComplete case for onTurnCompleteWithPostAction/
  bothMustRunKeepingSecondResult.
- bothFailuresEscapeWhenBothHalvesThrowDistinctExceptions: proves a second,
  distinct failure from the session half is preserved via addSuppressed
  rather than silently dropped when both halves of bothMustRun throw.

Also rewords the onDelivered comment in Fleetd.turnListener: it previously
said this pair is safe because registration survives a throw via #556's
Injector wiring, which is true but is not why THIS pair is unguarded.
CompletionResolver.captureBaseline already catches RuntimeException around
its scrape read and fails open, so completion.onDelivered does not
realistically throw. Comment text only, no logic change.
2026-09-12 18:10:31 +07:00
Dai Ha 68b428c484 fleetd #551 rework (comment 17058): fix TIMED_OUT_QUEUED javadoc for ATTEMPTED
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Javadoc-only change. #551 added Injector.Cancellation.ATTEMPTED, which
MessageService.send's timeout path folds into Outcome.TIMED_OUT_QUEUED
alongside CANCELLED and NOT_DELIVERED (the collapse itself is unchanged
behaviour and is being tracked as a separate follow-up ticket).

TIMED_OUT_QUEUED's javadoc — landed by #513 to state the routes that
reach it — named only two routes and said "on every route it will not
arrive later", with a "may already hold a partial paste" caveat. Both
claims are now stale: ATTEMPTED is a third route, and because
agent.prompt pastes AND submits in one call, that route may mean the
target holds a complete, already-submitted turn and is working on it
right now.

Names all three routes, says which one is uncertain, and drops the
now-false blanket claim. No behaviour change.
2026-09-12 17:51:26 +07:00
Dai Ha e20ccab1eb fleetd #561: harden the completion/session TurnListener fan-out
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Fleetd's turnListener composition had four callbacks (onTurnComplete,
onTurnCompleteWithPostAction, and both onTurnFailed overloads) built from two
bare, unguarded statements each. onDelivered's registration was already fixed
structurally by #556; these four had the identical fragility and were still
untested: nothing enforced that the completion resolver's half ran before the
session half beyond call order in the source, so a future reorder (or a
throwing session listener sequenced first) could silently skip the
completion resolver's effect and strand a caller for its full timeout.

Extracted the composition to a package-private static factory,
Fleetd.turnListener(completion, sessions), and hardened it with
bothMustRun/bothMustRunKeepingSecondResult: both callback halves are always
attempted regardless of whether the other throws, and whatever escapes is
rethrown afterward (never swallowed) so it still reaches StatusPoller's
catch (Throwable) and logs at ERROR.

FleetdTurnListenerCompositionTest builds this real composition from a real
CompletionResolver and a throwing fake sessions half, and asserts the
completion resolver's effect (the waiter resolving) survives the session
half throwing, for all four callbacks, plus a mirror case showing the
session half still runs when the completion half throws first.

onTurnCompleteWithPostAction keeps completion-before-session as a functional
requirement (resolveBeforePostAction must run before the context-reset
housekeeping can erase the pane), not just fault tolerance, so it is not
reorder-symmetric like the other three — documented in Fleetd.turnListener's
javadoc.
2026-09-12 17:47:53 +07:00
Dai Ha d83821bbce fleetd #551: record the delivery attempt before the irreversible send
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The Injector wrote the delivery outcome AFTER calling AgentControl.send(),
so a HerdrException thrown from the response half of that call (herdr
already replied, or may have) was recorded as a confident NOT_DELIVERED
for text that may already be sitting in the worker's pane.

Poll the queue entry and mark it Pending.State.ATTEMPTED before send() is
called, not after. On success it is upgraded to DELIVERED; on an ordinary
failure it stays ATTEMPTED (honest uncertainty), except a herdr
*_not_found error, which the rest of this codebase already treats as a
confirmed absence and which now still writes NOT_DELIVERED.

cancellationOf gets a matching third answer (Cancellation.ATTEMPTED)
instead of folding the new state into NOT_DELIVERED, so a caller that
cancels an already-attempted delivery is told the truth too.
2026-09-12 17:43:21 +07:00
ltms ba2f4d16f8 Merge #555: the redeploy main flow is lifted into tested predicates, and the guard now catches functions below the SOURCED line
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fleetd #555. Eight main-flow decisions in scripts/redeploy-fleetd.sh move into
predicate and dispatch functions the suite can source and test. The guard test
test_no_untested_main_flow_conditionals stops new bare conditionals reappearing.

The rework closes a hole the lead found (comment 17012): a conditional wrapped in
a function defined BELOW the SOURCED guard was invisible to the guard, and such a
function can never be sourced, so it can never be tested. The guard now fails on
any function definition after the guard line, on its own.

Verified by the lead on a tree with main merged in, redeploy-fleetd.sh at its
pristine sha 4ffacc5185807d39720a3484d85b922413806eb5347318265bd8897dfd61e8d9:
  bash 5.3.9      -> exit 0, 0 lines matching ^FAIL:
  /bin/bash 3.2.57 -> exit 0, 0 lines matching ^FAIL:

Three mutations, each restored to the pristine sha afterwards:
  a bare conditional appended to the main flow      -> exit 1, reported by line
  the same conditional wrapped in a function below
    the SOURCED guard (the found hole)              -> exit 1, "function defined
    after the SOURCED guard (line 1038) - it cannot be sourced, so it cannot be tested"
  the new FUNC emission deleted from the guard      -> that same case returns to
    exit 0, so the new assertion is what catches it. Anchor count 1 -> 0,
    test-redeploy-fleetd.sh restored to sha 0d713a3092a0c0ea8c05663ffa0cb1595e21b9d73872e662eb99b5035fd38151.
2026-09-12 12:19:47 +02:00
ltms db4c98ac60 Merge #556: the Injector owns turn registration, and the #553 backstop is pinned too
CI / shell-tests (push) Successful in 6s
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fleetd #556. Registration moves off the TurnListener fan-out onto its own narrow
TurnRegistrar seam, wired directly to CompletionResolver::register in Fleetd.java,
so it survives any listener throwing regardless of call order.

Verified by the lead on a tree with main (f4f5f31) merged in:
  mvn -o clean install exit 0; 1750 tests, agreed by Maven's own summary and an
  independent sum over 130 surefire report files.

Both registrar.register call sites are independently pinned:
  Injector.java:703 (the #553 finally backstop) removed -> exactly 1 failure, the
    new aRuntimeExceptionFromOnTurnCompleteStillLeavesTheNextDeliveryRegisteredOnTheRecoveryPath
  Injector.java:660 (the ordinary path) removed -> exactly 2 failures, the two
    original tests; the backstop test stays green
Anchor count 1 -> 0 on each, sha restored to
8fcb698afccc254b0c99d3a4bf9e960c0e7c85e542024e870c1e815dce6d62a9 both times.

The :703 line survived the full suite before this rework while being executed
twice — covered but unasserted. That gap is what the added test closes.
2026-09-12 12:18:15 +02:00
Dai Ha 8f80d267a0 fleetd #555 rework: catch function definitions after the SOURCED guard
CI / shell-tests (pull_request) Successful in 9s
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CI / build (pull_request) Successful in 3m3s
Comment 17012 on #555 found a hole in test_no_untested_main_flow_conditionals:
the guard's function-body detection treats anything inside a function as
"fine, out of scope for this scan" — but a function DEFINED after the
SOURCED guard line can never be reached by sourcing this script (sourcing
stops before the main flow runs), so its body is untestable by construction
while still reading to the guard as safely inside a function.

mainflow_bare_conditionals now also emits a FUNC record for every function
opened after the guard line (reusing the same open-brace detection already
used for depth tracking), and test_no_untested_main_flow_conditionals treats
any such record as a violation on its own, independent of what the function's
body contains or whether the allowlist would otherwise excuse a bare
conditional inside it.

Proof (redeploy-fleetd.sh restored to 4ffacc5185807d39720a3484d85b922413806eb5347318265bd8897dfd61e8d9
after each):

- CONTROL — a bare conditional appended to the main flow is still caught:
  EXIT=1, "found 1 untested main-flow if/elif/case line(s) ... line 1341:
  if [ "$MY_CONTROL_BARE" = 1 ]; then :; fi"
- CANDIDATE — the same conditional wrapped in a function defined after the
  boundary, previously invisible (EXIT=0), is now caught: EXIT=1, "line 1341:
  function defined after the SOURCED guard (line 1038) — it cannot be
  sourced, so it cannot be tested: newfunc_below_the_boundary() {"

Full suite re-run green on both bash 5.3.9 and /bin/bash 3.2.57 (macOS
system bash): exit 0, 0 FAIL lines, reached the final PASS line, on both.

No change to redeploy-fleetd.sh; the 8 lifted decisions, their mutation
proofs, and the allowlist all stand as before.
2026-09-12 17:11:11 +07:00
Dai Ha 738d34a609 fleetd #556 rework: pin registration on the #553 finally backstop path
CI / shell-tests (pull_request) Successful in 7s
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CI / build (pull_request) Successful in 2m13s
Comment 17009: there are TWO registrar.register(target, sent.token())
call sites in Injector's delivery method — the ordinary path inside
`if (sent != null)`, and the fleetd #553 finally backstop, reached only
when an earlier block throws before the ordinary path ever runs. The
lead's mutation on Injector.java:703 (the backstop call) survived the
full suite: the existing #553 regression test for this exact scenario
(aRuntimeExceptionFromOnTurnCompleteStillCompletesTheNextDelivery)
asserts only that the delivered future completes, never that the turn
is registered with CompletionResolver — so a redesign that dropped
registration from the backstop would reopen this ticket's own defect on
precisely the path #553 exists for, with every existing test green.

Adds aRuntimeExceptionFromOnTurnCompleteStillLeavesTheNextDeliveryRegisteredOnTheRecoveryPath:
drives the same construction as the existing #553 test (onTurnComplete
throws for a previous turn, forcing the next turn's delivery down the
finally backstop) and additionally asserts the new turn is registered
with CompletionResolver and carries the correct waiter — the same
assertion the ordinary-path test makes, now made on the recovery path.

Proven by mutation: removing Injector.java:703 alone (exact-line anchor
1 -> 0) turns the new test red with its own assertion message; restored
and confirmed byte-identical (sha256 8fcb698afccc254b0c99d3a4bf9e960c0e7c85e542024e870c1e815dce6d62a9,
matching the pre-mutation tree); re-run green as a control. Full suite
after restore: 1750 tests, 0 failures, 0 errors, 0 skipped (Maven's own
summary and an independent sum over surefire-reports/*.txt agree),
BUILD SUCCESS.
2026-09-12 17:08:44 +07:00
Dai Ha a46e4058ac fleetd #556: make turn registration structural, independent of any TurnListener
CI / shell-tests (pull_request) Successful in 4s
CI / contract (pull_request) Successful in 50s
CI / build (pull_request) Successful in 2m29s
The Injector owns the invariant "every delivered turn has a registered
waiter," but before this the only thing that satisfied it was
CompletionResolver.captureBaseline, called from inside a TurnListener
callback wired in Fleetd.java. Any TurnListener that throws (from
onDelivered or elsewhere) could break the invariant with no way for the
Injector to detect it. #553 only made the one reachable listener behave
via a try/finally backstop; it did not remove this structural dependency.

Add a narrow TurnRegistrar functional interface, decoupled from
TurnListener, whose only job is registering a delivered turn's waiter.
CompletionResolver now implements it via a new register() method
(extracted from captureBaseline's registration half; captureBaseline
keeps its own full body unchanged, so existing direct callers/tests are
untouched). Injector gets an explicit registrar field/constructor family
(auto-derived from the TurnListener via instanceof where that still
works, explicit where Fleetd's anonymous fan-out listener can't
implement two interfaces at once) and calls registrar.register(...)
directly and unconditionally in both the ordinary delivery path and the
#553 finally backstop, before turnListener.onDelivered(...) — so
registration no longer depends on that notification callback succeeding.
Fleetd.java wires completion::register explicitly as the registrar,
bypassing the turnListener fan-out for registration purposes.

CB-116 ordering (onTurnComplete reads the PREVIOUS turn's inFlight entry
before the new turn's registrar.register() runs) and the two-arg
inFlight.remove(target, turn) vs one-arg distinction on the completion
path are both preserved unchanged.

#561's order-dependent test (asserting Fleetd.java's
completion.onDelivered -> sessions.onDelivered call order) does not
exist anywhere in this repo at this branch point — nothing to delete.

Adds 5 tests: a TurnListener that throws from every callback still
leaves the delivered turn registered and resolvable; the new turn's
registration still runs after the previous turn's completion is read
(CB-116 guard, pinned as a call-order assertion); and three tests naming
the two-arg-remove invariant directly (a superseded turn's terminal
handling must not evict its successor's registration) across resolve()'s
plain-completion branch, its echoed-noReportMessage sub-path, and
fail().
2026-09-12 16:50:09 +07:00
ltms f4f5f3106e Merge #513: TIMED_OUT_QUEUED has four routes, and the javadoc now says which
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CI / build (push) Failing after 1m51s
The old javadoc said a TIMED_OUT_QUEUED message was "still sitting in the injector's
per-target queue". It is not — send() has already given up on it and it will never
arrive. That wrong claim told an operator to wait for a message that was never coming.

The first fix replaced it with a narrower wrong claim: that Injector.cancel() cancelled
the entry and "the target never saw a word of it". That describes one of four routes.

TIMED_OUT_QUEUED is returned whenever injector.cancel() returns anything but DELIVERED:

  CANCELLED      the Pending was still queued and this call removed it
  NOT_DELIVERED  Injector.java:400 - the herdr agent.prompt call threw
  NOT_DELIVERED  Injector.java:419 - readiness grace expired, never attempted
  NOT_DELIVERED  Injector.java:691 - drop(), the target is gone

On the last three, cancel() cancels nothing: it reads a state another path already set
(cancellationOf, Injector.java:288-290). And on the herdr-threw route, agent.prompt
pastes and submits in one call, so a throw does not prove the pane stayed clean - an
operator told "never saw a word" will not go and look at the one place the evidence is.

The javadoc now states the two facts that hold on every route - the message will not
arrive later, and it is not in any queue - and attaches "the target saw nothing" only to
the CANCELLED case. Five blocks: the enum constant, queuedDeliveries, hasQueuedDelivery,
hasOrphanedDelegation, and the inline comment in the TimeoutException branch that seeded
the wording.

Comment-only; no logic changed.

Verified on a tree merged with main (fast-forward to cb64bc8):
  mvn install exit 0
  1744 tests, 0 failures, 0 errors - Maven's own summary and an independent sum over
  130 surefire report files agree
  no unresolved javadoc reference on the three new links, with a positive control
  showing javadoc did analyse MessageService.java

Closes #513.
2026-09-12 11:48:54 +02:00
Dai Ha 8d79d229ff fleetd #555: lift 8 main-flow decisions into tested predicate/dispatch functions
CI / shell-tests (pull_request) Successful in 11s
CI / contract (pull_request) Successful in 1m31s
CI / build (pull_request) Successful in 1m46s
redeploy-fleetd.sh's main flow had 8 bare if/case decisions (CHECK_ONLY
short-circuit, drain-gate entry+confirm, supervisor report/stop/start
dispatch, health-poll decision, HAD_OLD_PID computation) that lived outside
any function, so the 67-test suite could not reach them and any one could be
silently inverted with the whole suite green.

Follows the existing swap_if_built/refuse_drain_gate pattern: each bare
guard becomes a small predicate or dispatch function (should_stop_for_check,
drain_gate_required/drain_confirmed/run_drain_gate, report_supervisor_state,
dispatch_stop, dispatch_start, health_is_up/report_health,
compute_had_old_pid), called unconditionally by the main flow so the
decision itself is unit-testable in isolation.

Adds a structural guard, test_no_untested_main_flow_conditionals, that scans
the main flow (everything after the SOURCED guard) for bare if/elif/case
lines outside any function body, tracking function boundaries via this
file's one consistent name() { / } convention. It fails on any new bare
conditional not covered by MAIN_FLOW_ALLOWED_CONDITIONALS, an explicit
exact-text allowlist of the report-only/display conditionals and the two
#504-family supervisor elif branches that stay out of scope for this
ticket. This is the "shape, not the eight sites" guard the ticket asked
for: a ninth bare decision fails immediately, naming its line.

Out of scope, not touched: #504 items 2/3/4 and #528 item 2 (same
untested-main-flow family) — the seam here generalizes to make them
testable too, but lifting them was left for their own tickets.
2026-09-12 16:46:53 +07:00
Dai Ha cb64bc8157 fleetd #513: rework — TIMED_OUT_QUEUED has four routes, not one
CI / shell-tests (pull_request) Successful in 5s
CI / contract (pull_request) Successful in 49s
CI / build (pull_request) Successful in 2m16s
Comment 16984 on the ticket showed my first pass (ed28b51) replaced one
wrong invariant with a narrower one: it described injector.cancel()
cancelling a queued entry as THE mechanism, when three of its four
routes (Injector.java: the send-to-terminal call throwing, the
readiness grace expiring, or the target being torn down) never cancel
anything — cancel() just reports a state a different code path already
set. It also claimed the target never saw a word of the message, which
is not established when the herdr agent.prompt call throws after
already pasting.

Rewrote all four comments (the TIMED_OUT_QUEUED enum constant,
queuedDeliveries, hasQueuedDelivery, hasOrphanedDelegation) plus the
pre-existing inline comment that seeded the original bad wording, to
state only what holds on every route: the message will not arrive
later and is not sitting in a queue. The CANCELLED case is called out
as the only one where the target is known to have seen nothing; the
NOT_DELIVERED case (including the herdr-send-threw route) is flagged
as leaving that open.

Comment-only; no behavior change.
2026-09-12 16:45:35 +07:00
Dai Ha ed28b51f12 fleetd #513: fix TIMED_OUT_QUEUED javadoc — cancelled, not queued
CI / shell-tests (pull_request) Successful in 4s
CI / contract (pull_request) Successful in 52s
CI / build (pull_request) Successful in 2m22s
Two javadoc blocks (queuedDeliveries field, hasQueuedDelivery) said a
timed-out message is still sitting in the injector's per-target queue.
CB-640 made send() cancel it via Injector.cancel() instead, so the
message is gone and will never arrive. Rewrote both to describe
cancellation. Also fixed a third instance of the same stale claim in
hasOrphanedDelegation's javadoc, and added a line to the
TIMED_OUT_QUEUED enum constant's own comment clarifying the name is
kept but no longer means the message stays queued.

Per the ticket's follow-up comment: no rename (TIMED_OUT_QUEUED reaches
FleetApp.java REST mapping and FleetMcp.java — out of scope here) and
no behavior change; comments only.
2026-09-12 16:32:36 +07:00
ltms 4f9aba40e7 Merge #558: the ticket is the pull channel, and the brief is write-once
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CI / build (push) Failing after 1m51s
Docs only, 16 additions / 3 deletions — read by the lead in full, per the
under-50-lines self-review rule in CLAUDE.md.

Verified on the merged tree (main dab697f + 351ee1e): the canonical-block sync
check from the addendum prints `in sync: True`, comparing the MERGED CLAUDE.md
against wiki/7-Use-Cases.md. The wiki side is already pushed and verified by ref:
local wiki HEAD and `git ls-remote origin main` both read 20d2fc0.

CI run 1812 on 351ee1e: success.
2026-09-12 11:12:55 +02:00
ltms dab697fae0 Merge #559: progress watchdog for StatusPoller and SessionReaper loops (fleetd #544)
CI / shell-tests (push) Successful in 7s
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CI / build (push) Successful in 2m19s
Verified by the lead on a merged tree (main 7a3b2bb + bfac141 = 5de807f):
mvn clean install exit 0, Tests run: 1744, Failures: 0, 130 surefire reports.

Three mutations run by the lead, all killed:
- StatusPoller.java:105 `watchdog.reset()` deleted (the surviving mutant from the
  first review) -> aRestartedLoopReportsRunningAgainNotStoppedForever:
  expected: <RUNNING> but was: <STOPPED>.
- LoopWatchdog.java:73 `lastRoundNanos = nowNanos.getAsLong()` deleted from reset()
  (not run by the worker) -> LoopWatchdogTest.resetClearsAPreviousStopAndTheStaleClock:
  expected: <RUNNING> but was: <STALLED>.
- LoopWatchdog.java:89 `>=` -> `>` boundary (not run by the worker) ->
  LoopWatchdogTest.reportsStalledOnceTheLastRoundAgesPastTheThreshold:
  expected: <STALLED> but was: <RUNNING>.

Each mutation counted the pristine full line 1 -> 0 by exact string equality
(awk '$0==p'), with a pristine control copy still reading its original count, and
was restored to a byte-identical file (shasum -a 256) before the next run.
Control build after all restores: exit 0, 1744 tests, 0 failures.
2026-09-12 11:11:46 +02:00
Dai Ha bfac14108f fleetd #544: pin the sticky-STOPPED-across-restart invariant
CI / contract (pull_request) Successful in 1m21s
CI / build (pull_request) Successful in 1m42s
Review of PR #559 (issue comment #16944) found a surviving mutant: removing
watchdog.reset() from StatusPoller.start() (and the identical line in
SessionReaper.start()) passed the entire suite.

stoppedByCaller is sticky and reset() — called only from start() — is the
only thing that clears it. Both loops document start() as idempotent and
loop()'s own error log says "it can be restarted", so stop() followed by
start() is an anticipated path. Without reset() wired into start(), health()
would report STOPPED forever after a restart even though the loop is
genuinely running again.

Add aRestartedLoopReportsRunningAgainNotStoppedForever to both
StatusPollerWatchdogTest and SessionReaperWatchdogTest, pinning "an
intentional stop must not outlive the restart that follows it". Verified via
the standard mutation cycle: exact-line anchor (not regex, to avoid the
\Q-style false match the reviewer flagged) counted pristine 1 -> mutated 0,
test goes red with its own message, restored, shasum -a 256 byte-identical,
green again.

mvn clean install: exit 0, BUILD SUCCESS, Tests run: 1734, Failures: 0,
Errors: 0, Skipped: 0 (cross-checked against 130 surefire report files).

No production code changed — the reset() call under test was already
correct; it simply had nothing pinning it.

🤖 Generated with Claude Code

Co-Authored-By: Claude <noreply@anthropic.com>
2026-09-12 16:00:58 +07:00
ltms 7a3b2bb7ee Merge pull request 'fleetd #552: warn instead of aborting when the post-restart mktemp fails' (#560) from worker/552-post-restart-mktemp-abort-bc2672-4 into main
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2026-09-12 10:58:10 +02:00
Dai Ha f188947750 fleetd #552: warn instead of aborting when the post-restart mktemp fails
CI / shell-tests (pull_request) Successful in 7s
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CI / build (pull_request) Successful in 2m7s
By the time the fresh-log mktemp ran, the daemon had already been stopped, the
jar swapped, and the new daemon started — an unguarded mktemp failure there
aborted the whole script anyway, so a caller read the resulting non-zero exit
as "the redeploy failed" and would restart an already-correctly-restarted
daemon.

Extract the mktemp into capture_fresh_log_region, guarded the same way
unload_launchd_if_loaded/stop_systemd_if_loaded guard their own, but warn
instead of die: there is nothing left to protect by refusing after a
successful restart. The trap is now installed before the assignment it cleans
up, using an FRESH_LOG="" sentinel readers can check.

classify_amqp_connection_errors and report_shutdown_drain both gain a new
state (REDEPLOY_AMQP_CHECK_SKIPPED / REDEPLOY_DRAIN_STATE=skipped) for an
uncapturable log region, distinct from "captured a region with nothing in
it" — and the result section gains a matching branch, so a skipped capture
can never read as a clean bill of health.
2026-09-12 15:55:04 +07:00
ltms f606fccf7f Merge pull request 'fleetd #553: register the rendezvous waiter in onStatus's finally backstop' (#557) from worker/553-onstatus-completion-leak-0da881-2 into main
CI / shell-tests (push) Successful in 4s
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2026-09-12 10:50:24 +02:00
Dai Ha 735b6af976 fleetd #544: progress watchdog for StatusPoller and SessionReaper loops
CI / contract (pull_request) Successful in 1m19s
CI / build (pull_request) Successful in 2m29s
Each loop's virtual-thread runner (StatusPoller, SessionReaper) can die or
get permanently parked in a herdr call with no read timeout, and nothing
observed it: /healthz stayed green and Thread.isAlive() kept reporting true
the whole time.

Add LoopWatchdog (dev.ltms.fleet.inject — see its javadoc for why not
dev.ltms.fleet.health, which would close a package cycle through session):
each loop now records a monotonic last-completed-round timestamp
(injectable LongSupplier clock, same pattern as Injector/SessionManager) and
exposes it as a three-state health() fact — RUNNING, STALLED (dead or
parked, indistinguishable from outside), STOPPED (stop() was called on
purpose, never an alarm). This is the fleetd #512 shape: one flag cannot
carry both "halted on purpose" and "halted unexpectedly", so stop() marks
its own state explicitly instead of leaving state() to infer it from
staleness.

Staleness thresholds are derived from each loop's own poll interval with a
documented multiplier: StatusPoller 40x (250ms -> 10s), SessionReaper 12x
(5000ms -> 60s).

Scope: observability only, per the ticket's own comment. No restart/recovery
mechanism, no /healthz or REST/MCP wiring beyond the public health() API, no
change to the per-item catch(Throwable) behavior (#543) or a process-wide
uncaught-exception handler (ruled out on #538), and no deadline added to the
herdr read itself (a separate, real ticket).

🤖 Generated with Claude Code

Co-Authored-By: Claude <noreply@anthropic.com>
2026-09-12 15:48:07 +07:00
Dai Ha 8b4320ed24 fleetd #553: split sentHandled's two meanings so onDelivered's own throw still completes the future
CI / contract (pull_request) Successful in 54s
CI / build (pull_request) Successful in 1m43s
Lead review of PR #557 (ticket comment 16916) found one path left open: sentHandled
is set to true BEFORE onDelivered() runs (correctly, per the earlier fix), so when
onDelivered() itself throws on the normal path, the finally's 'if (sent != null &&
!sentHandled)' guard skipped the whole recovery -- completion included -- and left
sent.delivered() pending forever for a message that really was delivered.

sentHandled must guard only the onDelivered RE-CALL (the permanent-suppression
hazard), never the future completion, since CompletableFuture.complete/
completeExceptionally are idempotent and a no-op on the already-handled path.
Split the one flag's two jobs: the outer 'if (sent != null)' now always runs the
recovery block, and '!sentHandled' moved onto just the onDelivered call inside it.

Added anOnDeliveredThrowOnTheNormalPathStillCompletesTheDeliveryFuture, proven with
the lead's own mutation (reverting !sentHandled onto the outer if): the new test
goes red while anOnDeliveredThrowAfterItsOwnRegistrationDoesNotRunASecondTime stays
green, showing the two concerns are genuinely separate.
2026-09-12 15:45:36 +07:00
Dai Ha 351ee1ea6d CLAUDE.md: the ticket is the pull channel, and the brief is write-once
CI / shell-tests (pull_request) Successful in 6s
CI / contract (pull_request) Successful in 1m26s
CI / build (pull_request) Successful in 2m10s
A send to a working member is accepted and returns a ticket, then is never
delivered. That happened three times in one session here, and the member was
released still executing a brief that had been retracted twice. The receipt is
true — it is a fact about the mailbox, when what was needed was a fact about the
pane.

The fleet01 lead named the mechanism: a push delivery needs the recipient free at
send time, while a pull channel needs only that they look before acting. So the
ticket is not more reliable than the mailbox, it is a different direction, and its
success depends on the member's procedure rather than on the timing of the send.

Both halves have to be written down, because each is useless alone:

- Member (turn contract, new item 4): re-read the ticket before acting on anything
  told earlier, and again before committing. A ticket comment that contradicts the
  brief is newer and wins.
- Lead (step 5): all corrections go to the ticket, and the brief is write-once.
  The member cannot check which source is newer — it just always prefers the
  ticket — so revising a brief in place makes it obey the rule and do the wrong
  thing. A first brief for a unit not yet running is not a correction.

wiki/7-Use-Cases.md is updated to keep the canonical block byte-identical; the
sync check passes. The wiki submodule pointer is deliberately left unstaged.
2026-09-12 15:45:09 +07:00
Dai Ha d4a51c6274 fleetd #553: register the rendezvous waiter in onStatus's finally backstop, not just the delivery future
CI / contract (pull_request) Successful in 50s
CI / build (pull_request) Successful in 2m12s
The previous try/finally around onStatus's post-monitor region completed
sent.delivered() but never registered sent.token().waiter() when an earlier
listener threw. That waiter is registered only by turnListener.onDelivered(),
inside the very if (sent != null) block the finally backstops, so a caller
was told its send landed and then waited out its full timeout for an answer
that could never resolve (worse than a plain hang).

The finally now does that block's whole job on the unhandled path: it calls
onDelivered() (when sendError == null) before completing the future, guarded
by its own try/catch(Throwable) so a failure there cannot mask the original
throwable. A sentHandled flag, set true at the START of the normal block
(before any side effect), tells the finally whether that already ran, so a
throw partway through onDelivered cannot trigger a second, late captureBaseline
that would permanently suppress the turn's completion.

Also removed a leftover duplicated forget.accept(target) call (with a stray
'MUTATION-TEST-3' comment) in the notReady block — residue from the previous
worker's own mutation testing that was not fully reverted.
2026-09-12 15:35:53 +07:00
ltms 26f380a00b Merge #554: portable hash256, a third state for an unhashable jar, and the shell suite in CI (#550)
CI / shell-tests (push) Successful in 8s
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CI / build (push) Successful in 2m24s
Closes fleetd #550, all three items.

Verified by me on the branch at b8182c9, in a scratch worktree, not from the implementer's report.

The decisive pair, both in ubuntu:latest where shasum is absent and sha256sum is present:

  main   (93a9ed3):  SUITE exit=127   anchored ^FAIL: count 0
                     scripts/test-redeploy-fleetd.sh: line 298: shasum: command not found
  branch (b8182c9):  SUITE exit=0     anchored ^FAIL: count 0

Identical FAIL counts, opposite exit codes. That is why the new shell-tests CI job gates on the
step's own exit status and deliberately does not grep for a FAIL count: a suite that dies before
running a single test prints exactly what a clean pass prints.

Also measured by me: macOS exit 0 / anchored count 0; 70 tests defined and 70 invoked with an
empty comm -3; bash -n exit 0 under both /bin/bash 3.2.57 and bash 5.3.9; ci.yml parses with jobs
build, shell-tests, contract, and shell-tests is ubuntu-latest + actions/checkout@v4 +
bash scripts/test-redeploy-fleetd.sh.

Three mutations, all killed, each restored byte-identical against
515d929bb53c9ec2c95042e47d3e4d611d60171345227b07feb0de0d20643d3a:

  drop the sha256sum branch from hash256   anchor 1->0   Linux exit 1,
      test_no_unguarded_macos_only_hasher_calls with its own message
  echo "unhashable" -> echo "absent"       anchor 1->0   FAIL: jar_id reported absent for a file
      that exists, only because no hasher was on PATH
  both hash256 arms -> shasum -a 1         anchors 1->0 and 1->0   FAIL: hash256 of the literal
      3-byte input 'abc' must be the known SHA-256 prefix, not some other algorithm's: expected
      ba7816bf8f01, got a9993e364706

The third mutation SURVIVED on the first head (3da44ee) and was sent back. Fixing item 2 had
rewired the reference hashes in test_jar_id_defaults_to_live_and_reports_explicit_path onto
hash256 itself, making the test's reference and its subject one instrument — they agree whatever
it computes, and the existing fixture guard catches only a constant return, not a wrong algorithm.
b8182c9 adds test_hash256_computes_a_real_sha256, pinning the FIPS 180 vector for "abc" as a
literal constant written into the test rather than taken from any hasher. That closes it: the
mutation now goes red, and a9993e364706 is SHA-1("abc"), which proves the mutated code really ran.

Root cause, for the record: shasum was the trigger, not the cause. Under set -euo pipefail a
missing hasher makes the pipeline status 127, the `|| echo "absent"` fires, and jar_id returns a
confident false "absent" for a jar that is right there. Without pipefail the same function returns
an empty string and is visibly broken. A default at the read site that maps every failure onto one
value which already means something specific is the defect; the fix separates "not there" from
"could not hash it".
2026-09-12 10:20:29 +02:00
Dai Ha b8182c96c2 fleetd #550: pin hash256's algorithm against a literal SHA-256 test vector
CI / shell-tests (pull_request) Successful in 5s
CI / contract (pull_request) Successful in 59s
CI / build (pull_request) Successful in 2m27s
test_jar_id_defaults_to_live_and_reports_explicit_path's reference hash is computed by calling
hash256 itself (needed so it doesn't call the Linux-crashing bare shasum directly). That made
subject and reference the same instrument: they agree no matter which algorithm hash256 actually
runs, so a mutation swapping both of hash256's arms for the wrong algorithm was invisible to the
suite.

Adds test_hash256_computes_a_real_sha256, pinned against the published SHA-256 test vector for the
3-byte input "abc" (ba7816bf8f01...), written as a literal constant rather than computed by any
hasher at test time. Verified the constant myself both ways (sha256sum and shasum -a 256) before
writing it in.
2026-09-12 15:16:43 +07:00
Dai Ha 3da44eed63 fleetd #550: replace shasum with a portable hash256 helper, add a Linux CI job for the shell suite
CI / shell-tests (pull_request) Successful in 5s
CI / contract (pull_request) Successful in 1m17s
CI / build (pull_request) Successful in 1m46s
jar_id() in redeploy-fleetd.sh called shasum directly, which does not exist on GNU coreutils
Linux (Debian/Ubuntu/etc.) — there it silently reported an existing jar as "absent" with exit 0,
because the missing command made `cut` succeed on empty input and pipefail's failure was then
swallowed by the `|| echo "absent"` fallback. The shell test suite hit the same tool at
test-redeploy-fleetd.sh:298-299 and died at exit 127 with zero FAIL lines printed — the same shape
as a clean pass on the one channel anyone would check.

Adds one hash256() helper (prefer sha256sum, fall back to shasum -a 256, same idiom already used
in probe-member-credentials.sh) and points jar_id and the test suite's own reference hash at it.
jar_id now has three distinct answers instead of two: absent, a hash, or "unhashable" when neither
hasher is on PATH — "absent" is never used for a file that exists.

Adds a CI job (shell-tests) that runs scripts/test-redeploy-fleetd.sh on ubuntu-latest, gated on
the step's own exit code rather than a FAIL-line count, since a suite that dies before running is
exactly what a green run also looks like by that count.

New tests: test_jar_id_reports_unhashable_when_no_hasher_on_path (stubbed PATH with neither
hasher) and test_no_unguarded_macos_only_hasher_calls (a shape check across every script under
scripts/, not named lines — #545 already showed this idiom spreading from two sites to six).
2026-09-12 15:06:15 +07:00
ltms 93a9ed3f83 Merge #549: widen Injector's delivery catch to Throwable (#546)
CI / contract (push) Successful in 56s
CI / build (push) Successful in 1m43s
Closes the re-delivery window that merging #543 opened. I caused that; this closes it the same day.

Verified by me on the branch at 87871ea, base 0b032f5 (not stale).

Production diff is 11 lines: `catch (RuntimeException)` -> `catch (Throwable)` at Injector.java:391,
and the `sendError` local widened to `Throwable` so it compiles. I checked every use of `sendError`
myself — :533 `getMessage()` and :534 `completeExceptionally(Throwable)` — so the wider type
reaches nothing that needed the narrow one.

Build on the branch: exit 0, Tests run: 1719, Failures: 0, Errors: 0, Skipped: 0 (1716 on main plus
the 3 new tests). #459's javadoc reference gate: exit 0, 0 reference errors. Gitea CI run 1803 on
87871ea: success.

Three mutations of my own, none of them the ones the worker used:
1. Reverted the catch to `RuntimeException`. RED: `anErrorFromSendDoesNotRedeliverOnASecondRound`
   "expected: <1> but was: <2>" prompt calls, and `anErrorFromSendRemovesTheMessage...` reporting
   the Error escaping `onStatus`. That second message is the defect itself, stated by the test.
2. Deleted the `t.queue.poll()` in the catch arm. RED on the new test AND on the pre-existing
   `sendFailureDropsMessageAndFailsItsFuture` — so the new test is not carrying that behaviour alone.
3. Wrote `DELIVERED` instead of `NOT_DELIVERED` at :400, the catch arm only. RED on the new test and
   on `aHerdrExceptionFromSendStillProducesNotDeliveredUnchanged`, which is the control that proves
   the widening did not quietly change the ordinary path.

All three restored; sha256 back to 97c560b6e33fc49a1772abec92e5bbab613f8991deba2220d30221a2f546ba14.
Green control after the restores: InjectorTest 37/37, exit 0.

My third mutation did not apply on its first attempt — it asserted a unique match on
`p.state = Pending.State.NOT_DELIVERED;`, which occurs twice (:400 and :419), so the script wrote
nothing and the test run came back exit 0. That is not a surviving mutant, it is a non-result
wearing the same clothes. The pristine-anchor count catching it is the only reason I noticed.

Deliberately NOT fixed here, filed as #551: the catch arm assumes that reaching it means nothing was
sent, and nothing establishes that. `agent.prompt` pastes and submits in one call, and every failure
in the response half of `UnixSocketHerdrClient.call()` — dropped connection, malformed line, error
result — is a `HerdrException`, which is a `RuntimeException`, which this catch arm already caught
before today. So "records NOT_DELIVERED for a delivery that happened" is older than this PR and is
not created by it. The fleet01 lead argued it was a trap inside this change and asked to be argued
out of it before the merge; the measurement above is the argument, and their underlying diagnosis is
right and is now #551 with their wording on it.
2026-09-12 09:39:41 +02:00
ltms 0b032f5a1a Merge #548: fix mktemp -t templates for GNU coreutils, split the unclear-supervisor detail (#545)
CI / contract (push) Successful in 55s
CI / build (push) Successful in 2m16s
Verified by me on the branch, not on the worker's report.

Source audit, on a scratch worktree at a476a14:
- Every `mktemp -t` site in scripts/ now carries an X placeholder. The only remaining
  `mktemp -t` text with no X is a prose comment in the test file, not a call.

Suite, macOS (/bin/bash 3.2.57 and env bash 5.3.9):
- exit 0, anchored `^FAIL:` count 0. Unanchored `FAIL:` count 3 — the suite's own internal
  mutation-cell fixture lines, same as main.
- Test functions defined vs invoked: 67/67, `comm -3` empty.

Three mutations of my own, none of them one the worker used:
1. Removed `.XXXXXX` from the `fleetd-fresh-log` site (line 1089). Pristine anchor count went
   1 -> 0, so the mutation really applied. Suite exit 1, FAIL named that exact line.
2. Made the state-2 branch in `detect_supervisor` unreachable (`= 2` -> `= 9`). Suite exit 1:
   "a systemd probe setup failure must read as unclear, not none: expected unclear, got none".
3. Made `systemd_loaded` set the old value (`=2` -> `=1`) on setup failure. Suite exit 1:
   "must flag a SETUP failure (2), distinct from a probe-answered-with-stderr failure (1)".
All three restored; `shasum -a 256` back to 77fe15e5945c7d4ef9b1a2cd8f46e6f1d0be5004f595ea03964d1d7c16e859f7,
the same hash the worker reported independently. Green control after the restores: exit 0, 0
anchored FAILs.

A fourth attempt did not count. A perl `\Q...\E` pattern silently interpolated the shell
variables in it, so the file was never changed and the suite's exit 0 meant nothing. The proof
cell caught it: the pristine anchor count was still 1 after the "mutation". A mutation that did
not apply is not a surviving mutant.

The measurement macOS cannot make: I ran both arms under GNU coreutils 9.1 in a
debian:bookworm-slim container, with a `systemctl` stub that exits non-zero and writes NOTHING to
stderr — a clean negative answer.

  main (a476a14's base):
    mktemp: too few X's in template 'systemd-loaded-err'
    systemd_loaded rc=1  SYSTEMD_LOADED_ERRORED=1
    detect_supervisor => unclear | "systemctl exited non-zero and reported an error on stderr,
                                   not a clean negative — e.g. it cannot reach the user bus"

  this branch:
    systemd_loaded rc=1  SYSTEMD_LOADED_ERRORED=0
    detect_supervisor => none

So on Linux, main tells the operator that systemctl answered badly, when systemctl ran fine and
gave a clean negative. The message named a cause that was never measured. This branch removes it.

Found while doing this, NOT part of this PR, ticket to follow: the shell suite cannot run on
Linux at all. It dies at the first `shasum` call with "command not found" and exit 127, and the
anchored `^FAIL:` count reads 0 — identical to a green run. Gitea CI never runs this suite, so
nothing caught it.
2026-09-12 09:30:30 +02:00
ltms fad99c4c5e Merge #547: record the finally non-goal on drainAll's completion line
CI / contract (push) Successful in 49s
CI / build (push) Successful in 2m10s
Comment only. No behaviour change.

Verified by me before merging:
- `mvn -B clean install` in a scratch worktree: exit 0, Tests run: 1716, Failures: 0, Errors: 0,
  Skipped: 0. Same count as main, as expected for a javadoc-only change.
- #459's javadoc reference gate: exit 0, 0 reference errors.
- Gitea CI run 1801 on 5eb4267: success.

The constraint came from the fleet01 lead. Their point: the value of the `drain complete` line is
that it is MISSING when a drain does not finish. A `finally` block would print it after a drain
that threw, with partial counts, and destroy both halves at once. The code already avoids this;
what was missing was the sentence that stops a reviewer putting it back.
2026-09-12 09:29:46 +02:00
Dai Ha 87871eaefb fleetd #546: widen Injector's delivery catch to Throwable, stop re-delivery on Error
CI / contract (pull_request) Successful in 1m29s
CI / build (pull_request) Successful in 1m49s
Injector.java:391 caught only RuntimeException around the herdr send seam. PR #543
(fleetd #538) widened StatusPoller's per-target catch to Throwable so the polling
loop now survives an Error there, which means it comes back round — and Injector's
narrower catch let the poisoned message stay QUEUED (the loop peeks, not polls),
so the next round re-sent the same text into the member's pane.

Widen the catch to Throwable, matching #543 one layer down. sendError's declared
type widens from RuntimeException to Throwable to keep compiling; its only consumer
(CompletableFuture.completeExceptionally(Throwable)) already accepts that type, so
no other caller-visible behavior changes. The ordinary HerdrException/RuntimeException
path is unchanged.

Adds three tests: an Error at the send seam is dropped and marked NOT_DELIVERED, a
second onStatus round does not re-send it, and a HerdrException control proves the
ordinary path is untouched.
2026-09-12 14:26:27 +07:00