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M3 — steering completion: follow-up publication + host-routed affinity - #25
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…ublish_conflict ADR-0019 P2 — the engine wiring for the expected-tip CAS: - runs.published_sha (additive migration 0034), written by the git.push handler right after the push resolves — the work_branch pattern, so a crash between push and record re-runs an idempotent push on resume and the record lands then. The branch.pushed event carries the commit so the timeline names what actually landed. - GitScmService.push derives the chain's expected tip (latest non-null published_sha across the workspace_key group by run number), passes it to applyApprovedPatch, and maps TipConflictError to a typed tip_conflict result. PushResult grows the arm; the engine maps it to RunFailure(publish_conflict) — terminal, because a retry reproduces the refusal deterministically, and the remote was never touched. - FakeScmService can now lie (tipConflictNext) — fails-closed is untestable until the fake can express the conflict. Tests: compliance through both transports (publication recorded + event stamped; lost CAS fails typed with no record and no push) and a real-git chain walk in the worker suite (follow-up advance parented on the ancestor's tip, cumulative content, then a human advance conflicting typed). All five neuter-verified.
ADR-0018 amendment, slice A2 — the per-host queue. A new name family run.host.<uuid> (disjoint from the executor-set queues, generated and never parsed back) carries central runs whose workspace_host is stamped. The routing decision lives in ONE place: the enqueue-side resolver generalizes from executor-id derivation to queue-name derivation (dbRunQueueResolver) — runtime_id IS NULL AND workspace_host set routes to the host queue, a daemon pin keeps its executor-set routing (the pin owns affinity), everything else is unchanged. Every send path — submit, follow-up, straggler sweep, stranded-checkpoint sweep, lease sweeper, drain re-enqueue — funnels through enqueueRun/enqueueRunAfter, so follow-ups AND initial-run resumes become host-bound with zero call-site changes. The consumer side is one line: selectRunQueues adds the worker's own host queue (never a peer's), advertised from the storage identity A1 minted. The claim-time WorkspaceElsewhereError decline and its five-minute grace remain as the deploy-skew fallback. Tests: resolver routing against real rows (host pin → host queue, runtime pin wins, unknown → loud null), pure queue selection, and a fetch-level two-worker test — the holder claims the pinned run, a peer with the identical executor set never sees it, an unpinned run stays fair game. Routing tests neuter-verified.
…gated, guarded ADR-0019 P3 — the synthetic publish tail. followupTemplate appends a publish phase when the whole publication story exists (base flow has git.push, base declares a workspace, the seed found a patch key, the chain has a work branch): an approval checkpoint presenting the CUMULATIVE patch, then the base's own git.push and pr.open steps verbatim — their with-config is author intent the synthetic flow must not lose (their when-conditions are stripped; the engine's guards replace them). The guards key on the synthetic phase id, never expressible in the template language, and read approved and published from separate records: the whole tail is skipped only when the steer's patch is EMPTY; the checkpoint alone is skipped when the patch is byte-identical to bytes the chain already approved (an earlier follow-up's publish checkpoint, or anything published — nothing publishes unapproved bytes); push and pr.open always run, both idempotent, so an approved-but-unpublished chain completes instead of being skipped past. A base-flow approval that never reached a push is deliberately not counted — the conservative direction re-asks a human. Compliance through both transports: changed steer pauses at its own approval then advances the chain twice; unchanged steer completes in one leg with the checkpoint skipped and the push run; question-only steer skips the tail entirely. All neuter-verified (guards off, tail off). i18n gains publish_conflict in both locales; manual 03 en+zh-CN rewrites the 'publishing stays with the original run' bullet the tail supersedes; CHANGELOG covers publication and host routing.
…notification ADR-0018 amendment, slice A3 — the dead-host sweeper, the honesty half of the per-host queue. A run parked on a host queue only its holder can serve waits forever if that host is gone; ADR-0018's rule is that a dead pin fails workspace_lost and is never re-routed (re-routing lands the agent in an empty directory and lets it report success). sweepDeadHostRuns (run-lifecycle, beside its sibling sweeps) fails central host-pinned runs when no live-and-ready heartbeat has advertised their host for five minutes AND the run itself has been parked that long — three states, each with its own parked-since marker: queued (queued_at), running with no lease (the crash-recovery re-enqueue only the holder could claim), and waiting_approval fully decided (a resume enqueued to a queue nobody polls). Finalization is the same CAS as every other path, so racing replicas fail each run exactly once; the worker stage syncs notifications like the offline-runtimes stage. A host back within grace drains its queue instead, and rolling deploys never trip it — the identity belongs to the storage. Docs: design 04's affinity paragraph rewritten around the shipped queue (the 'per-host queue is the real fix' promise resolves), design 08 notes the volume IS the host, manual 06 gains a host-affinity section in both locales. Sweeper tests neuter-verified.
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Included review availability: Your plan includes up to 1 review per rolling hour; 0 remain after this review. 📝 WalkthroughWalkthroughThe change adds host-specific queue routing and dead-host recovery for workspace-pinned runs. It also adds approval-gated cumulative follow-up publication, published commit tracking, and atomic branch-tip conflict handling. ChangesWorkspace host affinity
Follow-up publication
Estimated code review effort: 4 (Complex) | ~45 minutes Merge Risk: ⚪ Minimal · up to This PR adds follow-up publication and host-routed workspace affinity; the supplied checks are green, and no actionable merge-blocking risk remains beyond normal final review. Sequence Diagram(s)sequenceDiagram
participant Worker
participant RunQueue
participant Database
Worker->>RunQueue: poll executor and own host queues
RunQueue->>Database: resolve run queue
Database-->>RunQueue: host-specific or executor queue
RunQueue-->>Worker: deliver eligible run
Worker->>Database: sweep pinned runs
Database-->>Worker: finalize stale runs as workspace_lost
sequenceDiagram
participant FollowupTemplate
participant Engine
participant Database
participant SCM
FollowupTemplate->>Engine: add publish approval tail
Engine->>Database: inspect patch and published tip
Database-->>Engine: publication decision and expected tip
Engine->>SCM: push cumulative patch
SCM-->>Engine: commit SHA or publish conflict
Engine->>Database: record publication result
Possibly related PRs
🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
✨ Finishing Touches📝 Generate docstrings
🧪 Generate unit tests (beta)
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Inline comments:
In `@docs/design/04-execution-runtime.md`:
- Line 98: Update the stale publication statement in the execution-runtime
design document to describe approval-gated follow-up publication as supported,
aligning it with the implementation and removing the claim that follow-up
publication is out of scope. Preserve the surrounding host-affinity and
queue-routing behavior.
In `@packages/orchestration/src/engine/engine.ts`:
- Around line 2230-2239: Update the own-patch lookup in the surrounding engine
method to order by descending artifacts.iteration and then descending
artifacts.createdAt, ensuring the newest tied row is selected when retries store
the same iteration. Preserve the existing digest and return behavior.
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CHANGELOG.mdapps/api/src/index.tsapps/worker/src/consumer.integration.test.tsapps/worker/src/deps/scm.tsapps/worker/src/deps/workspace.test.tsapps/worker/src/heterogeneous-fleet.integration.test.tsapps/worker/src/index.tsapps/worker/src/run-queues.test.tsapps/worker/src/run-queues.tsdocs/design/04-execution-runtime.mddocs/design/08-deployment.mddocs/manual/en/03-running-tasks.mddocs/manual/en/06-operations.mddocs/manual/zh-CN/03-running-tasks.mddocs/manual/zh-CN/06-operations.mddocs/plan/m3-plan.mdpackages/core/src/queue.tspackages/db/drizzle/0034_published_sha.sqlpackages/db/drizzle/meta/0034_snapshot.jsonpackages/db/drizzle/meta/_journal.jsonpackages/db/src/schema/runs.tspackages/i18n/locales/en/errors.jsonpackages/i18n/locales/zh-CN/errors.jsonpackages/orchestration/src/engine/deps.tspackages/orchestration/src/engine/engine.integration.test.tspackages/orchestration/src/engine/engine.tspackages/orchestration/src/engine/fakes.tspackages/orchestration/src/engine/run-lifecycle.tspackages/orchestration/src/followup.tspackages/orchestration/src/queue.integration.test.tspackages/orchestration/src/queue.ts
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…ale attempt's CodeRabbit review on PR #25, two findings, both verified valid: 1. (Major) computeTailGuards ordered the run's own patch lookup by iteration alone — but a retried steer plain-INSERTS a second row with the same key and the same iteration, so the order ties and Postgres may return the stale attempt's digest (reproduced: the regression test fails deterministically without the fix, both transports). A stale digest deciding publication could suppress the approval checkpoint for bytes a human never saw, or push an empty patch. createdAt is now the tiebreaker — the same latest-row-wins rule priorArtifacts already applies, so the guard and the evidence machinery agree on which row is canonical. 2. (Minor) design 04's steering paragraph still ended with the superseded 'publication is out of scope … publishing stays the ancestor's business' — the P3 docs pass rewrote the affinity paragraph and missed this one four lines up. It now describes the approval-gated tail and the expected-tip CAS.
…clines everywhere Codex review round 4 on PR #25, four findings, all verified valid: 1. (P1) The carry-forward treated every published run as approved and every patch row of an approved run as approved bytes — an auto-published base flow could exempt its follow-ups from the gate, and an earlier loop iteration's never-presented patch counted. The publish checkpoint now RECORDS the digest it presents (payload.patchSha256), and the carry-forward matches only those records. Publication is deliberately not approval; the first unchanged steer after any base flow re-asks once, and the approval then carries. Compliance test rewritten as the two-stage walk. 2. (P1) pg-boss's retry of a crashed job bypasses the enqueue-side resolver, so a host-pinned run could be redelivered to the wrong host and fail a false workspace_lost while the holder was healthy. The engine now declines any central run pinned to another host's storage — unconditionally, before the claim (EngineDeps grows the worker's storage identity); the consumer completes such declines for crashed running runs too, and the lease sweeper's re-enqueue routes them through the resolver onto the host queue. A dead host stays the dead-host sweeper's terminal decision. 3. (P2) The dead-host grace accepted ANY decision older than the window — a run whose newest checkpoint was approved seconds ago could fail immediately. The grace now measures from max(decided_at). 4. (P2) A recovery PR (ancestor pushed, PR creation failed) composed from the follow-up's empty context: body interpolation lost ancestor artifacts and the waiver section lost the ancestors' accepted findings. Follow-up runs now backfill chain artifact VALUES and decided-checkpoint responses (produced/digest state stays their own), and composePrBody reads review gates across the chain, chronologically, so the last human decision per finding still wins. All four neuter-verified (each disabled in turn; seven test failures across both transports, zero passes).
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The second of M3's PRs (m3-plan), building on the foundations #24 merged: a follow-up can now publish what it was steered to produce, and a central fleet routes a chain back to the host that holds its workspace. Resolves both engineering deferrals recorded in ADR-0018's Consequences, per ADR-0019.
What this delivers
Publication (P2 + P3)
runs.published_sha(migration 0034) — the chain's expected-tip record, written by the engine'sgit.pushhandler post-push (thework_branchpattern, crash-safe by determinism);branch.pushedevents carry the commit.GitScmService.pushderives the chain's expected tip and drives the expected-tip CAS; a lost CAS surfaces as a typedtip_conflict→ terminalRunFailure("publish_conflict")(i18n'd in both locales).FakeScmServicecan lie, so fails-closed is testable.followupTemplateappends an approval checkpoint presenting the cumulative patch, then the base's owngit.push/pr.opensteps verbatim. Engine guards (keyed on the synthetic phase id, inexpressible in the template language) read approved and published from separate records: empty steer → whole tail skipped; byte-identical approved bytes → checkpoint carried forward; push/pr.openalways run (idempotent), so an approved-but-unpublished chain completes.Host affinity (A2 + A3)
run.host.<uuid>queue family; the enqueue-side resolver (dbRunQueueResolver) is the single routing seam — central runs with a stampedworkspace_hostroute to their host's queue, which only workers mounting that storage poll. Follow-ups and initial-run resumes become host-bound with zero call-site changes; the claim-time decline survives as the deploy-skew fallback.sweepDeadHostRunsfails runs parked ≥5 min on a host no live-and-ready heartbeat has advertised for ≥5 min —workspace_lost, typed, with a notification. A host back within grace drains its queue; rolling deploys never trip it (the identity belongs to the volume).Docs: design 04 (the affinity paragraph now describes the shipped queue), design 08 (the volume IS the host), manual 03 + 06 in both locales, CHANGELOG.
Verification
Full gate green at every commit (
bun run check,bun testwith Postgres — 712 pass / 0 fail / 6 declared skips,templates:validate,build). Compliance suite through both transports: changed steer pauses at its own approval then advances the chain twice; unchanged steer completes in one leg, checkpoint skipped, push run; question-only steer skips the tail; lost CAS fails typed with no record. Real-git chain walk: a follow-up advance parents on the ancestor's tip with cumulative content; a human advance conflicts typed. Fetch-level two-worker test: the holder claims a pinned run, an identically-equipped peer never sees it. Every new behavior neuter-verified (each disabled in turn; its tests failed).Still owed before merge: a codex review round, and the live smoke from the m3-plan verify criteria (steer a finished repo run on prod → approve → the branch advances by exactly one deterministic commit; a manual push then forces
publish_conflict).Summary by CodeRabbit
New Features
Bug Fixes
workspace_lostand send notifications.Documentation