fix(coordinator): fence durable event reconciliation - #4731
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| const options: TmuxSpawnOptions = { | ||
| cwd: plan.cwd, | ||
| env, | ||
| env: { ...env, ...coordinatorSidecarSigningEnv(env) }, |
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Fresh evidence after the argv fix is that the PKCS#8 key is now placed in the environment of every tmux invocation. When this invocation starts a tmux server, the server inherits that environment and a same-account process with access to the tmux socket can retrieve the global environment (for example with show-environment -g) and forge authenticated sidecars; pass the bootstrap secret through a one-shot non-tmux channel instead.
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| ).then( | ||
| () => true, | ||
| () => false, | ||
| ); |
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When prepare_existing_thread is requested but the broker returns a non-prepared session, a rejected session.close is converted to false here and then ignored. The still-running ordinary session is subsequently bound into the canonical WAL with initial state prepared, and the tool can return success even though deferred readiness was never established; restore the failure check and return an unobserved/compensation error instead of admitting the session.
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| .filter((sessionId): sessionId is string => typeof sessionId === "string"), | ||
| scopedSessionId, | ||
| ); | ||
| return events.filter(event => typeof event.session_id === "string" && authorized.has(event.session_id)); |
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This filter requires every event to have a currently authorized session WAL, but successful deletion removes that WAL before appending session.reaped. An unscoped watch therefore drops the reaped row, advances next_after_seq past it, and can never deliver the lifecycle event; a session-scoped watch instead encounters resource_gone. Authorize deletion tombstones or retain immutable event authority rather than requiring a live transaction.
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| await fs.mkdir(path.join(namespace, "sessions"), { recursive: true }); | ||
| await fs.writeFile(path.join(namespace, "sessions", "session-1.json"), JSON.stringify({ session_id: "session-1" })); | ||
| return namespace; | ||
| async function createSession(root: string, server: ReturnType<typeof createCoordinatorMcpServer>): Promise<string> { |
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Replace this newly added ReturnType<typeof createCoordinatorMcpServer> annotation with a named concrete server type; the repository contract explicitly prohibits ReturnType<>, and the same new pattern should be removed from the other added test helpers.
AGENTS.md reference: AGENTS.md:L114-L114
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| return events.filter(event => | ||
| typeof event.session_id === "string" | ||
| ? authorized.has(event.session_id) | ||
| : scopedSessionId === null && authorized.size > 0, |
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When gjc_coordinator_report_status is called without a session in a namespace that has no authorized session rows, it appends a valid sessionless report.written event, but this condition rejects it because authorized.size is zero. An unscoped gjc_coordinator_watch_events call then returns no events and advances next_after_seq to the journal watermark, permanently skipping the report even though the same namespace-level report remains visible through read_coordination_status and may be delivered to the webhook. Sessionless events should not depend on an unrelated session event being present in the snapshot.
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| provenance.namespace_id !== namespaceId || | ||
| provenance.session_id !== sessionId || | ||
| provenance.coordinator_turn_id !== "" || | ||
| !safeId(provenance.endpoint_incarnation) || |
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When upgrading a pre-change WAL that already contains a valid gate observation, its first_provenance lacks the newly required namespace_id, session_id, coordinator_turn_id, and endpoint_incarnation fields, while migrateLegacyTransactionV1 does not populate them. These checks therefore make assertTransaction throw state_corrupt, leaving sessions that had observed questions unreadable. Fresh evidence after the earlier migration finding is that the new partial migrator handles the verifier and delivery fields but still omits legacy gate provenance; normalize those records before enforcing the new shape.
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| typeof event.emitted !== "boolean" || | ||
| !safeId(event.public_event_id) || | ||
| !isRecord(event.public_delivery) |
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When registering a legal 128-character session ID, initialCreationOutbox constructs an ID like txn:<session>:1:session.registered:session:<session>, assigns it to public_event_id, and then reaches this validation with a value well over the 128-character limit imposed by safeId. assertTransaction consequently throws state_corrupt before the WAL can be committed, regardless of the new webhook filename hashing. Validate stable event IDs with an appropriate bound or store a bounded digest instead.
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@codex review Adversarial exact-head review requested for the frozen change set:
Review only this head against Signed-off-by: gaebal-gajae (clawdbot) 🦞 |
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| @@ -5364,13 +8139,20 @@ export function createCoordinatorMcpServer(options: CoordinatorMcpServerOptions | |||
| acknowledgement, | |||
| promptKey, | |||
| ); | |||
| await appendCoordinatorEvent(namespaceDir, { | |||
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When gjc_coordinator_start_session includes a prompt, commitCreationWal has already created the durable session.started outbox intent, and recordAcceptedPrompt exports that intent through projection repair. This second append has no stableId, so the same successful call always publishes another session.started row with a different ID; a crash before the outer idempotency receipt is sealed can publish still more on replay. Event-watch and webhook consumers can therefore process one session creation multiple times. Reuse the deterministic outbox ID here instead of allocating a new journal event.
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The PR is rebased onto current Signed-off-by: gaebal-gajae (clawdbot) 🦞 |
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Exact-head review requested at 8066636.
Signed-off-by: gaebal-gajae (clawdbot) 🦞
Self-approval is not an independent review and must not authorize this regression-risk change.
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PR ownership is on a bounded control-plane hold, not a code/CI hold. The exact PR head remains clean and preserved. Three canonical fresh-turn attempts reached SDK acceptance and real model activity, but authoritative Tracked independently in #4824. No PR code, branch, review, or CI evidence was discarded. PR #4731 remains open pending restoration of a queryable GJC owner; no merge/close claim is made. — |
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@codex review Independent exact-head adversarial review requested for PR #4731. Review only this replacement head against the supplied base:
Focus on cross-process durable admission, legacy WAL migration, authority fencing, replay/idempotency, projection repair, namespace-only report authorization, session reaping, and tmux signing-key transport. Report concrete blockers with file/line evidence; otherwise state CLEAR. An independent authenticated APPROVED review is still required before merge. Signed-off-by: gaebal-gajae (clawdbot) 🦞 |
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@codex review Review only this exact replacement head after the live-base rebase:
Focus on cross-process durable admission, legacy WAL migration, authority fencing, replay/idempotency, projection repair, namespace-only report authorization, session reaping, and tmux signing-key transport. Report concrete blockers with file/line evidence; otherwise state CLEAR. Independent authenticated APPROVED review is required before merge. Signed-off-by: gaebal-gajae (clawdbot) 🦞 |
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@codex review Review only this exact replacement head after the live-base rebase:
Focus on cross-process durable admission, legacy WAL migration, authority fencing, replay/idempotency, projection repair, namespace-only report authorization, session reaping, and tmux signing-key transport. Report concrete blockers with file/line evidence; otherwise state CLEAR. Independent authenticated APPROVED review is required before merge. Signed-off-by: gaebal-gajae (clawdbot) 🦞 |
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@probepark Exact-head fix-forward:
The latest red-team P1 Windows journal-directory barrier candidate is fixed. File contents remain synced before rename; unsupported Windows directory barriers now follow the existing coordinator durability policy. Please review this exact head only. — |
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| }); | ||
| await appendCoordinatorEvent(namespaceDir, { | ||
| stableId: `activation:${sessionId}:${activated.endpointGeneration}`, |
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When a completed reap is followed by the supported reuse of the same session ID, the successor can reuse the same endpoint generation because a new SessionEventStream starts its generation counter from zero. If both incarnations activate at generation 1, this stable ID resolves to the predecessor's existing journal row, so the successor emits no activation event; the returned old row is then rejected by incarnation-aware watch filtering and may also be redelivered to webhook/wake sinks. Bind this ID to currentSession.endpoint_incarnation, as the creation and deletion event IDs already do.
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Delta review at exact head 42487729 — merge blocked.
The current delta only switches journal directory fsync to the shared Windows-aware barrier; that change is safe and orthogonal. Torn-tail recovery remains fixed, but four P1 blockers are unchanged:
- activation event IDs omit endpoint incarnation, so same-generation successor sessions can lose their
session.startedrow to predecessor stable-ID reuse - a crash after durable
session.reapedappend but before deletion completion leaves the event unauthorized and unrecoverable by normal watch/reaper paths - scoped feeds match reaped lifecycle by reusable session ID, allowing predecessor events into a live successor scope
- the 1 MiB WAL ceiling deletes canonical turn/question/authority/receipt/report history instead of archiving or safely compacting it
Bind all lifecycle identity and scoping to (session_id, endpoint_incarnation), persist recoverable reap authority before deleting the final discoverable state, and preserve sealed canonical history outside the hot WAL.
Reviewed by @probepark — finite exact delta 4e8ce8bc..42487729, building on the prior head analysis rather than restarting review.
gajae.pr-review-verdict.v1 merge-blocked sha256:b4892fc899d6c4abfc7911cbb51ba8bf168fe471e149484f140a94526e59c179 reviewer:human reviewer-id:probepark evidence:exact-head-42487729-incarnation-reap-recovery-and-canonical-history-blockers
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@codex review Fresh exact-head review requested for Local latest-base evidence: coordinator suites 225/225; bootstrap suites 271/271; coding-agent check passed with 11 warnings; binary build passed. — |
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@probepark Please re-review exact current head after the latest
Addressed your exact-head blockers: activation IDs now bind endpoint incarnation; reaped events remain authorized through cleanup checkpoints and are hidden from successor-scoped feeds; compacted sealed WAL records are archived outside the hot WAL; Windows journal directory barriers use the existing platform-aware durability policy. Please review this exact head only. — |
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| const existing = await readJson<CoordinatorSessionHistoryV1>(file); | ||
| if (existing && (existing.schema_version !== 1 || existing.session_id !== before.session_id)) | ||
| throw new Error("state_corrupt"); | ||
| const archive = existing ?? emptySessionHistory(before); |
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When a completed deletion is followed by the supported reuse of the same session ID, removeSessionTransaction leaves history.v1.json in the session directory, but this check accepts that predecessor archive based only on schema and session ID. The successor's compacted records are then appended into maps still stamped with the predecessor's endpoint_incarnation, and colliding record IDs are silently discarded by copyRemovedHistory; durable canonical history is therefore misattributed or lost. Validate the incarnation and archive each incarnation separately.
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@codex review Review only exact current head Local latest-base coordinator suites 225/225, bootstrap suites 271/271, and package check pass. — |
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@probepark Exact-head update:
Your archive partition blocker is addressed: sealed WAL history is now stored under an endpoint-incarnation-specific archive path, preventing predecessor/successor session reuse from mixing canonical records. Please review this exact head only. — |
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Codex Review: Didn't find any major issues. 👍 Reviewed commit: ℹ️ About Codex in GitHubYour team has set up Codex to review pull requests in this repo. Reviews are triggered when you
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@codex Final exact-head review request for — |
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@probepark Final exact-head approval request:
The prior archive partition blocker is fixed by endpoint-incarnation-specific history sidecars; latest-dev rebase is complete and exact-head coordinator suites pass 227/227. Please review this exact head only and submit the protected approval when satisfied. — |
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| ...(launch.coordinatorSidecarSigningKey | ||
| ? { | ||
| [GJC_COORDINATOR_SIDECAR_SIGNATURE_REQUIRED_ENV]: "true", | ||
| [GJC_COORDINATOR_SIDECAR_SIGNING_KEY_ENV]: launch.coordinatorSidecarSigningKey, |
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On Linux systems with normal same-UID procfs access, every coordinator-managed SDK launch places the PKCS#8 signing key in the runtime's exec environment, so another process running as the same account can read /proc/<pid>/environ and retain the key for forging authenticated sidecar state. The sidecar's later delete process.env[...] does not erase the original exec-environment bytes exposed through procfs; transfer this secret through a one-shot channel rather than the spawned process environment.
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Transplant the canonical PR #4731 delta onto the post-#4833 dev base while retaining endpoint-incarnation fencing, reaped-event visibility, WAL history sidecars, coordinator durability, and model-resolution behavior. Lore-id: pr4731-recovery-v2 Constraint: preserve current dev SDK tail ordering and lifecycle semantics Constraint: exact PR branch head must be verified before force-with-lease Constraint: no release mutation Rejected: merge stale PR head directly | bypasses current dev and #4833 overlap Confidence: high Scope-risk: wide Reversibility: revertable Tested: 688 affected coordinator and runtime tests; package checks; native build; state and virtual gates
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Transplant the canonical PR #4731 delta onto the post-#4833 dev base while retaining endpoint-incarnation fencing, reaped-event visibility, WAL history sidecars, coordinator durability, and model-resolution behavior. Lore-id: pr4731-recovery-v2 Constraint: preserve current dev SDK tail ordering and lifecycle semantics Constraint: exact PR branch head must be verified before force-with-lease Constraint: no release mutation Rejected: merge stale PR head directly | bypasses current dev and #4833 overlap Confidence: high Scope-risk: wide Reversibility: revertable Tested: 688 affected coordinator and runtime tests; package checks; native build; state and virtual gates
The post-#4833 sdk-daemon-cli-e2e fixture now needs about 352 seconds in one fresh-process shard, exceeding the five-minute per-file guard despite exiting successfully. Raise only coding-agent shard file timeout to keep affected validation aligned with the real fixture budget. Lore-id: pr4731-recovery-v2-timeout Constraint: preserve fresh-process per-file timeout enforcement Constraint: no release mutation Rejected: drop sdk-daemon-cli-e2e from affected coverage | hides current SDK lifecycle coverage Confidence: high Scope-risk: low Reversibility: revertable Tested: scripts/ci-dev-affected.test.ts; affected plan dry-run
The current source exports six public SDK helpers that the manifest generator emits after the affected package smoke; keep the generated contract synchronized before the dev rebase. Lore-id: pr4731-recovery-v2-manifest Constraint: generated public surface must match current source Constraint: preserve post-#4833 SDK lifecycle semantics Confidence: high Scope-risk: low Reversibility: revertable Tested: SDK package smoke; affected validation matrix
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Rebased the canonical PR #4731 delta onto current dev 08d0024 after merged #4745 (no overlap with the coordinator/SDK change set). Exact new head: 110faea. Frozen diff SHA-256: c4d4915e457328285b57c599ff556640dde91e23bed588db855330a94187447e. Fresh local evidence: affected matrix 182/182, coordinator and sidecar regressions pass, root check pass, native/package/binary/install smoke pass, state writer/state/virtual gates pass. The five-minute coding-agent shard timeout was repaired because the post-#4833 sdk-daemon-cli-e2e fixture exits successfully at ~352s. Requesting an exact-new-head independent review and current gate evaluation. — |
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| for (const file of staged) await backupFile(file.path); | ||
| } | ||
| for (const [index, file] of staged.entries()) { | ||
| await fs.rename(file.stagedPath, file.path); |
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When a Hermes config or operator target is a symlink (for example, a profile managed through a dotfiles repository), renaming the staged file onto this path replaces the symlink itself with a regular mode-0600 file rather than updating its target. The previous Bun.write() implementation followed the symlink, so an ordinary install now silently disconnects the user's managed file; rollback after a later rename failure cannot reconstruct the symlink either. Detect and preserve symlink targets, or reject them before committing.
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| // Recovery is lazy and single-flight. Do not start a detached startup pass: | ||
| // callers must observe the current registry under the same lock, and a detached | ||
| // pass can outlive a server/test namespace and touch a removed root. | ||
| if (retainedDeliveryRecovery) return await retainedDeliveryRecovery; |
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When a long-poll watch starts this single-flight operation with its deadline signal, every concurrent caller reuses the same signal-bound promise. If that watch times out, its abort rejects the shared export for unrelated live requests—such as read_coordination_status, prompt reconciliation, or report_status—even though those callers supplied no aborted signal, producing transient request failures under normal concurrent MCP dispatch. Do not share caller-scoped cancellation across exports, or only coalesce operations with compatible lifetimes.
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Independent exact-new-head review for 110faea against base 08d0024. The frozen diff is the canonical PR #4731 behavior plus the validated CI timeout repair and generated manifest sync. Architecture, product, and code review are CLEAR with no merge-blocking findings; coordinator durability, endpoint-incarnation fencing, reaped-event visibility, WAL/history sidecars, sidecar bootstrap fencing, model resolution, and post-#4833 lifecycle compatibility are covered by the fresh local evidence and exact-head QA matrix.
—
[repo owner's gaebal-gajae (clawdbot) 🦞]
… fixtures (#4835) The #4731 durability transplant moved authoritative projections under `v1/<namespace>/projections`, made the legacy human-readable tree migration-input-only (namespace-scoped with a sidecar verifier), and made broker `session.create` prove its sidecar key via `coordinatorSidecarKeyId`. Two lifecycle suites were never rebased onto that layout, so required CI went red at the merge head and stayed red on current dev. One real runtime regression surfaced while rebuilding those fixtures: the reaper's idle clock now reads the projection session-state stamp, which projection repair rewrites with `updated_at: now` on every pass. A failed `session.close` bumps the WAL revision past the applied revisions, so every subsequent sweep triggers repair, refreshes the stamp, and defers the reaper's same-key retry by a full idle TTL — the retry contract the suite pins. Idle eligibility now prefers the durable WAL session's `updated_at`, keeping the projection stamp as the fallback for sessions whose WAL cannot be read. The fixtures gain a shared helper that materializes the durable layout the production code actually reads (initialized registry, canonical WAL transaction, projection row), mirroring the canonical suite's register-then-migrate flow. DR-1 retained-row proofs drive their broker mocks through close handlers so the post-close `session.list` flips deterministically; assertion scope is narrowed to `session.close` where the #4731 endpoint-authority preflight legitimately adds read-only `session.list` traffic. Lore-id: 4835-reaper-retry Constraint: preserve endpoint incarnation fencing, WAL history sidecars, and reaped-event behavior Constraint: no assertion or timeout weakening without proving the contract Rejected: keep projection-stamp idle clock and delete the retry test | hides a real retry deferral Rejected: stamp projection repair with the WAL updated_at | changes shared session-state semantics for every lifecycle path Confidence: high Scope-risk: narrow Reversibility: easy Tested: both failing files 5x repeated and isolated (13 pass), coordinator-mcp dir suite (40 pass), coordinator-mcp-server (211), coordinator-mcp/coordinator-durability* (52), sdk-broker/session-index/codex-bridge (155), ci-dev-affected.test.ts (98), package typecheck, biome on touched files Not-tested: macOS host (issue platform); behavior verified on Linux x64
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What
This follow-up hardens Coordinator MCP durable event reconciliation after the durability audit. It makes prompt/close admission canonical and crash-recoverable, fences projection writes, sequences public delivery across processes, repairs report replay, and preserves exact controller contracts for cursors, questions, errors, and status snapshots.
Exact-head follow-up fixes
report.writtenevents remain authorized without an unrelated live session; post-reap lifecycle events remain observable after WAL removal.start_sessionwith a prompt reuses the canonical durablesession.startedoutbox intent instead of appending a second unkeyed journal row.ReturnType<>.Risk classification
low-riskregression-riskhigh-riskVerification
bun --cwd=packages/coding-agent run check— pass (11 pre-existing warnings only).bun --cwd=packages/coding-agent run build— pass.bun --cwd=packages/natives run build).bun scripts/verify-g002-gates.ts— pass.Exact change-set evidence
821b11d547b9fe29fd3c6ea7f98a89a2c9c85fe0(origin/dev advanced from the previously recorded 90049 base during fix-forward)aab452267e866a73cb43f1ea022ee225d0b6224b496e9608fe96178857efd1558d9f0c1c8078c23d1a8936e3a8def5d2fd04d139GJC verdict
devbun --cwd=packages/coding-agent run checkpassesSigned-off-by: gaebal-gajae (clawdbot) 🦞