fix(sdk): restore durable workflow gate control endpoints - #4064
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Independent lane review for #4047: the one-line endpoint-record change restores sessionId, which the broker identity fence requires before session.get_endpoint can reach tmux-resident Deep Interview workflow controls. The added transport → session-index → broker test exercises that exact boundary. Scope is limited to the defect plus regression coverage and changelog.
After repairing this worktree’s incomplete dependency/native setup, I ran the candidate commit’s focused verification successfully: bun test packages/coding-agent/test/sdk-broker-host-integration.test.ts (2 pass) and bun test packages/coding-agent/test/sdk-host-wiring.test.ts --test-name-pattern "SDK host discovers, answers, and advances a durable workflow gate" (1 pass; 92 filtered). Current PR CI has affected-path validation failures in Verify PR head contains exact base / dependent evidence-plan jobs; no product-test failure is attributed by that run.
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OWNER_CONFIRMATION_REQUIRED A signed Independent red-team evidence against exact PR head
No duplicate repair was opened: |
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OWNER_CONFIRMATION_REQUIRED — I cannot submit REQUEST_CHANGES because GitHub rejects it on my own pull request (HTTP 422: Review Can not request changes on your own pull request).\n\nVerified immutable evidence: head 880fc6a does not contain supplied base 31c00c2; merge base is bd80cbc, and git merge-base --is-ancestor exits 1. The repository Dev CI ancestry gate requires the event base SHA to be an ancestor of HEAD. Rebase or reissue onto the supplied base, then obtain a fresh immutable review.\n\nThis does not reject the endpoint sessionId fix itself. GitHub GraphQL metadata/check retrieval was rate-limited; no CI, issue, or contributor-test status is inferred. |
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OWNER_CONFIRMATION_REQUIRED Superseding the prior exact-head note: PR #4064 advanced during the audit to current head The red-team coverage gap remains: the test proves endpoint lookup but does not exercise the publisher → session index → broker → WebSocket workflow-gate control chain ( GitHub still forbids this authenticated PR owner from submitting |
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OWNER_CONFIRMATION_REQUIRED Current exact-head update for This preserves the current red-Dev-CI attribution without asserting an unobserved root cause. The test still lacks a direct publisher → session index → broker → WebSocket workflow-gate control assertion ( An eligible independent reviewer must submit the required review after the active repair owner supplies a new exact head and green required CI. GitHub forbids this authenticated PR owner from submitting |
OWNER HOLD — not merge-readyExact head reviewed: The implementation is narrowly scoped and the endpoint record now publishes the This cannot receive LGTM / MERGE_READY:
Contributor tier is internal ( — |
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| - `gjc --mode acp` no longer aborts on flags it advertises in `--help`. `parseArgs` never recognized `--extension`/`-e`, `--hook`, `--no-extensions`, `--no-skills`, or `--skills`, so every one of them landed in `unknownFlags`; once unknown flags became a hard ACP failure, launching ACP with `--no-extensions` crashed at startup with `Unsupported under SDK-backed ACP: extension flags`. All five are parsed again, so `--no-extensions` starts normally while `--extension`, `--hook`, `--no-skills`, and `--skills` are rejected under ACP by their own names — the rejection list in `resolveAcpStartupOptions` had been dead code because nothing ever populated the fields it tested. A genuinely unknown flag is now reported as `unknown flags: --typo` instead of being mislabeled an extension flag. | ||
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| - Attached image placeholders such as `[image 1]`, including the `[image N] source="…"` pasted-path reference form, are now deleted atomically with Backspace when the cursor sits at the placeholder boundary or the end of the full reference, instead of being erased one character at a time. | ||
| - SDK-only session hosts now publish their session ID in endpoint discovery records, matching the broker's identity fence. This restores broker/coordinator resolution for durable workflow-gate controls (`workflow.gates.list` and `workflow.gate_answer`) without relying on tmux pane input. |
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This new entry is placed under the already-published 0.12.20 section even though the package was already at 0.12.21 before this commit. This falsely rewrites historical release notes and leaves the upcoming release without a record of the fix; move the entry under ## [Unreleased].
AGENTS.md reference: AGENTS.md:L188-L188
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Corrected in exact head 898016a2384283cafd0754460c908d09f2e39c88: the #4047 note now sits under ## [Unreleased] → ### Fixed; published 0.12.20 history is unchanged.
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| - Bounded-memory cold-session disk offloading is rollout-ready behind the `sessionMemory` settings namespace. `sessionMemory.mode` (default `"shadow"`) selects `off`/`shadow`/`enabled`: shadow measures without changing observable session behavior, and canary/default-on remain release-channel decisions rather than user-facing enum values. Fixed implementation budgets preserve the ≤64 MiB steady-state guarantee; transcript v5 stays authoritative and derived `.spill.*` sidecars remain disposable. Context materialization uses the typed `SessionContextTooLargeError` preflight, while `sessionMemory.contextOverflowRecovery` independently controls the async compact-once recovery path. | ||
| - Enabled explicit-path resumes validate descriptor-bound commit metadata, base/tail hashes, terminal proof, and hot-record digests before loading only the authenticated post-compaction tail. Fresh-process gates cover 120k compaction cycles, direct/captured forks, and one-million-record first build plus exact lazy reopen. Managed retained-authority startup remains on the eager compatibility path pending retained-authority range support. | ||
| - Enabled canary sessions fail closed to shadow/eager behavior after repeated sidecar build failures or failed adoption, expose the live auto-disable reason through `/session`, and clear the session-local latch through the existing `off` rollback mode. Live `enabled` → `shadow`/`off` rollback keeps existing cold entries lazily readable for the current process; the next `off`-mode start ignores derived state and restores eager compatibility. |
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This deletion changes the already-published 0.12.20 section by removing the standalone bullet after its Added entries. Keep this patch limited to the new Unreleased entry and preserve the published section verbatim, as the repository contract explicitly prohibits editing released changelog sections.
AGENTS.md reference: AGENTS.md:L188-L188
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| await broker.start(); | ||
| try { | ||
| const index = await new SessionIndex(agentDir).open(); | ||
| await index.append(event("host_registered", sessionId, stateRoot, endpointMtimeMs)); |
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When a top-level session uses the SDK-only branch, such as with no effectively enabled notification provider, createSdkSessionRuntimeExtension calls runtime.start() but never registerWithBroker; a repo-wide search at this commit shows that the only production registration call is in the separate notification-bus path at sdk/bus/index.ts:5611. This test manually appends the missing host_registered event, so it supplies authority the actual SDK-only host never publishes: despite the added endpoint field, session.get_endpoint still returns resource_gone and the advertised durable workflow-gate controls remain unavailable. Exercise or add registration through the SDK-only runtime instead of synthesizing the index event.
AGENTS.md reference: AGENTS.md:L156-L160
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MERGE_READY — LGTM for exact head b6aa9a27137f21ced243ea0c31950390c2ce568a against exact dev base 4a16e99e72b711764aa08a1aaefde02dc1cce31f.
Independent exact-head review completed: full three-file diff and endpoint/broker contracts inspected; the SDK-only endpoint record now publishes the live sessionId, preserving the broker identity fence rather than bypassing it. The transport → session-index → broker regression reaches session.get_endpoint and validates the resolved endpoint identity/token. No lifecycle broadening, unsafe fallback, generated-artifact drift, or concurrency/fail-closed regression is introduced. The sole Codex P1 feedback (Unreleased changelog placement) was repaired before this rebase; the latest Codex review for this head contains no actionable suggestion. Contributor is repository owner/admin; this is the sole internal repair branch.
Verification on this exact head: local broker integration 2/2, durable workflow-gate wiring 1/1 (92 filtered), coding-agent check/typecheck, and visible-definition gate all passed. Exact-head Dev CI run 31324367567 is terminal green, including affected-path evidence producer, coding-agent check/TS build/shard, broker-host integration, SDK production-host isolation, native build, state/public-surface guards, and virtual integration validation. Branch ancestry contains the exact base and GitHub reports the PR mergeable/clean. No merge was performed from this session.
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REQUEST_CHANGES — exact head c821034de4cc67569fa490c70b27e201c8b6f06f is not merge-ready.
The Codex P1 is confirmed by the production contracts: createSdkSessionRuntimeExtension starts the SDK-only runtime (packages/coding-agent/src/sdk/host/session-runtime.ts:1367), but that path never calls registerWithBroker; production registration exists only in the separate notification-bus path (packages/coding-agent/src/sdk/bus/index.ts:5611). The new regression manually appends host_registered to SessionIndex, masking the missing production publication. Consequently an SDK-only top-level session still has no broker index entry and session.get_endpoint returns resource_gone; publishing sessionId in its endpoint file alone cannot make the durable workflow-gate control surface reachable.
Required repair: register/unregister the SDK-only runtime through the broker index in its real lifecycle, preserve the broker identity/staleness fences, and replace the synthetic index append with an end-to-end production SDK-only registration regression. The exact-head CI is green but does not exercise this missing authority boundary. This COMMENT is the signed terminal REQUEST_CHANGES verdict because GitHub does not permit the authenticated PR author to submit a formal request-changes event on its own PR.
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| await ensureBroker({ agentDir: options.agentDir }); | ||
| const index = await new SessionIndex(options.agentDir).open(); | ||
| const locator = { repo: path.resolve(ctx.cwd), stateRoot }; | ||
| await runtime.registerWithBroker({ |
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For a top-level SDK-only session with a capable ctx.workflowGate, this registration makes the endpoint discoverable and the policy advertises the workflow controls, but createControlSurface still hard-codes answerGate and approvePlan to unavailable at lines 1015–1016. Consequently workflow.gates.list can find a pending gate while every workflow.gate_answer or plan-approval request fails instead of advancing it, leaving durable planning workflows stuck. Fresh evidence in this exact head is that broker registration now succeeds, exposing this separate handler-level failure; wire these handlers to the durable workflow-gate seam and exercise an actual answer in the integration test.
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REQUEST_CHANGES — exact head 2b09881f85d7e69b1594c7b960f6413553959bc8 is not merge-ready.
The new Codex P1 is valid: the SDK-only runtime advertises workflow controls when ctx.workflowGate is capable, and the repaired broker registration now makes that endpoint reachable, but createControlSurface still assigns answerGate and approvePlan to unavailable (session-runtime.ts:1014–1016). A durable gate can therefore be listed yet cannot be answered or approved through workflow.gate_answer / workflow.plan_approve, leaving the original #4047 control path blocked.
Required repair is to wire the SDK-only surface to the existing authoritative workflow-gate resolution semantics, including expected-session identity, idempotency/recovery, terminalization fencing, and teardown behavior; do not fork the notification-bus implementation or the active #4098 service/router architecture. Replace the current endpoint-only regression with a production SDK-only broker → control → durable-gate advance and post-shutdown rejection test.
The prior P1 changelog finding is fixed: the released 0.12.20 content is unchanged and the repair entry is only under Unreleased. All affected-path jobs in Dev CI run 31333922211 completed green, but its virtual-integration job was cancelled, so this exact head has no terminal-green CI either. This COMMENT is the signed terminal REQUEST_CHANGES verdict because GitHub does not allow the authenticated PR author to submit a formal request-changes event on its own PR. No merge was performed.
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| const stillPending = workflowGate.listPendingGates?.().some(gate => gate.gate_id === id) === true; | ||
| if (stillPending) workflowGate.clearPreparedTerminalization(id); | ||
| else workflowGate.quarantineGate?.(id); |
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When resolveGate durably records an accepted answer but then throws during terminalization or workflow advancement, listPendingGates() returns false because the record is no longer pending. This branch consequently calls quarantineGate, which releases the live continuation and converts the accepted record to quarantined, preventing the emitter's scheduled or explicit recoverAcceptedGates() from ever advancing it. A transient post-accept failure can therefore leave a planning workflow permanently stuck despite accepting the user's answer; retain continuation authority and report an uncertain terminal outcome instead of quarantining a durably accepted gate.
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| await ensureBroker({ agentDir: options.agentDir }); | ||
| const index = await new SessionIndex(options.agentDir).open(); |
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When notifications are inactive and GJC_SDK_DISABLE is unset, every top-level session selects this SDK-only path, but failures from ensureBroker or opening the broker index now escape through the outer startup cleanup and abort creation of the otherwise-local CLI session. Thus an unavailable broker executable or unsupported broker index can prevent gjc from starting at all; the notification-host path treats non-lifecycle broker registration as best-effort, and this default SDK-only path should likewise retain the local host when broker discovery is unavailable.
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REQUEST_CHANGES — exact head ba5237198c16f2b2061422d34eaf65549665da44 is not merge-ready.
The prior workflow-control P1 is fixed on this head: the SDK-only broker → endpoint → WebSocket path lists gates, rejects a wrong expected-session identity, accepts both workflow.gate_answer and workflow.plan_approve, and retracts the endpoint after shutdown. The implementation uses the durable emitter’s idempotency/recovery/terminalization APIs with the not_published proof; it does not duplicate notification-bus or #4098 lifecycle architecture. Exact-head Dev CI 31336024376 is terminal green (22 successes; no failed/pending checks).
However, the new Codex P1 is valid. This default SDK-only path calls ensureBroker and opens the session index during startup without the notification host’s non-lifecycle best-effort boundary. A broker executable/discovery/index failure therefore aborts an otherwise-local top-level GJC session. Broker control should remain unavailable/fail-closed, but local SDK hosting and the CLI session must continue; make broker registration best-effort for non-lifecycle SDK-only startup, retain lifecycle-required failures as fatal, and add a regression proving local endpoint operation survives broker/index failure without publishing a broker authority record.
This COMMENT is the signed terminal REQUEST_CHANGES verdict because GitHub rejects a formal request-changes event from the authenticated PR author. No merge was performed.
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| if (!workflowGate.prepareTerminalization(id, "not_published")) | ||
| throw Object.assign(new Error("Workflow gate is no longer answerable."), { code: "resource_gone" }); | ||
| try { | ||
| const resolution = await workflowGate.resolveGate(response); |
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When session_shutdown or session_switch races this await, the SDK-only teardown immediately retracts the endpoint without fencing new gate controls or waiting for in-flight resolutions; SessionSdkHost also dispatches frames fire-and-forget, so stop() cannot drain them. The notification-host path explicitly marks the runtime as stopping and awaits waitForGateResolutionQuiescence() before teardown (sdk/bus/index.ts:3670-3740), but this new path has no equivalent. Consequently a gate answer can be durably accepted while its response is lost, or have its continuation fenced before advancement, leaving the client uncertain or the workflow stuck; track these resolutions and drain them before stopping the runtime.
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REQUEST_CHANGES — exact head 0eeead806f79941c0ff5d0f9a84f6196e504a20a is not merge-ready.
The broker-availability P1 is fixed and verified: non-lifecycle SDK-only startup survives broker/index failure without a broker authority record, retries and registers after recovery, and lifecycle-required startup remains fatal. Exact-head Dev CI 31338207674 is terminal green (22 successes; no failed/pending checks).
The new Codex P1 is valid. resolveSdkWorkflowGate can be in flight when session_shutdown/switch begins; SDK-only teardown currently retracts the endpoint without first fencing new gate controls or awaiting gate-resolution quiescence. Because host frame dispatch is fire-and-forget, this can strand an accepted durable gate or lose its response. Match the existing notification-host lifecycle semantics: fence admission at teardown, track in-flight direct gate resolutions, await their bounded settlement before endpoint retraction, and cover answer/approve races with shutdown/switch. Preserve existing identity, idempotency/recovery, terminalization, and broker-failure behavior.
This COMMENT is the signed terminal REQUEST_CHANGES verdict because GitHub rejects a formal request-changes event from the authenticated PR author. No merge was performed.
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| current.fenceGateResolutions(); | ||
| try { | ||
| await current.waitForGateResolutionQuiescence(); |
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During session_switch or session_branch with a slow in-flight gate resolution, the session context has already rotated to the successor before this handler runs, but this call fences only additional gate answers while leaving the old broker-published transport active until the drain finishes. A client connected through the predecessor endpoint can therefore submit prompts, model changes, or other non-gate controls against the successor session for up to five seconds. Fence all inbound control dispatch before awaiting quiescence, as opposed to only gate resolution.
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| } catch (error) { | ||
| logger.error("sdk runtime stop failed", { code: errorCode(error), error: String(error) }); |
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When a gate resolution remains in flight for more than the new five-second bound, waitForGateResolutionQuiescence() rejects before runtime.stop() is attempted, and this catch restores the still-published runtime as active. Extension event dispatch isolates handler failures, so a real session_shutdown continues disposing the agent while its WebSocket endpoint and broker registration remain live indefinitely; on a switch, the successor runtime is never started by this handler. A bounded drain timeout must still proceed through endpoint teardown rather than retaining the old host.
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| api.on("turn_start", async (_event, ctx) => { | ||
| const current = active; | ||
| if (!current) return; | ||
| await current.registerBroker(); | ||
| current.runtime.emitEvent({ type: "turn_start", sessionId: ctx.sessionManager.getSessionId() }); |
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When broker discovery repeatedly fails—for example, a broker child launches but never publishes discovery—every model turn now awaits registerBroker(), whose ensureBroker() attempt can run until the broker's ten-second discovery deadline. Because turn_start handlers are awaited before turn processing continues, an otherwise-local SDK session can incur that delay on every turn. Fresh evidence in this head is that the startup failure is caught as optional, but the retry was moved into this synchronous per-turn handler; retry it in the background or with backoff instead.
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REQUEST_CHANGES — exact head f2b242ae2a004746bfccd17a927184b98fac036f is not merge-ready solely because exact-head Dev CI 31341496935 is terminal red.
Attribution is base-owned, not caused by #4047: Affected path validation / test:@gajae-code/coding-agent:shard-1-of-8 has 10 failures in agent-session-fallback-upstream-count.e2e.test.ts, including managed request counts, overflow accounting, N=3 switching, tool-round reset, and queued steer/followUp successor timeouts. I reproduced the full suite on this PR head (10 pass, 10 fail) and independently on its exact base e8a600c557b3d0d88e16f9bb1ddd458c422ed27b (10 pass, 10 fail). The base includes #4120 queued-prompt changes; this lane does not modify fallback accounting or queue semantics. Evidence producer and aggregate failed downstream of that shard.
The #4047 teardown patch remains limited to SDK-only gate admission fencing and resolution drain; no source change is warranted here. This signed COMMENT is the terminal CI-attribution REQUEST_CHANGES verdict because the authenticated PR author cannot submit GitHub’s formal request-changes event. No merge was performed.
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Reviewed against issue #4047 by rebasing onto current dev. The code is correct and causal — but it does not close the issue. Requesting changes on the scope claim, not the implementation.
The change itself is good
| run | result |
|---|---|
#4064 rebased onto dev |
20 pass / 0 fail (126 expects) |
| production hunks reverted, tests kept | 17 pass / 3 fail — session not indexed (resource_gone) on both broker-endpoint assertions, plus a lifecycle-required startup resolving instead of rejecting |
| re-applied | 20 pass / 0 fail |
So the regression coverage is causal, not decorative. Neighbouring suites on the patched tree are green too: websocket-transport.lifecycle.test.ts + sdk-surface-parity.test.ts + sdk-host-wiring.test.ts = 103 pass / 0 fail.
Rebase is one import conflict; keep both lines.
Why it does not close #4047
Even with this merged, the issue's literal reproduction still fails: an attended TUI session never opens a durable workflow gate at all. This PR fixes the endpoint/broker/control-plane half — the gate becomes reachable if it was published durably. In an attended session it is not, so a tmux-resident Deep Interview gate remains unreachable over the SDK exactly as reported.
Making attended sessions publish gate asks durably means every workflow-gate ask becomes a durable store write on the hottest interactive path, and it needs a real retire path for the losing side of the race with the local selector. That is a product decision, and it must be sequenced after this PR, not folded into it.
What I am asking for
Nothing in the code. Just:
- Rebase onto current
dev(3e902206b) so exact-head CI can run — every open PR in the repo is stale right now. - Amend the PR description to say it covers the endpoint/broker/control-plane half of #4047, and use
Refs #4047rather thanFixes, so merging does not auto-close an issue whose reproduction still fails.
Then it is an approve from me.
Follow-up worth filing
Attended sessions must publish workflow-gate asks durably and race the local selector — with prepareTerminalization proof derived from presentation state (mirroring bus/index.ts:2753-2764) and a genuine retire path for the loser. That follow-up should also revisit answerAsk: unavailable("ask.answer") on the SDK-only surface.
Caution for whoever rebases
Checking out whole files from this PR head silently reverts dev's 26a99aa3d (#4105) inside session-runtime.ts and breaks post-acceptance invocation terminalization (16 pass / 4 fail). Rebase properly; do not git checkout <head> -- <file>.
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gajae-code/packages/coding-agent/src/sdk/host/session-runtime.test.ts
Lines 259 to 261 in da44a0e
Replace the untyped extension harness contexts
These new harness declarations use any for both the event context and the API cast, and the same pattern is repeated in the broker-recovery and broker-required tests. The repository contract prohibits any unless necessary; these values already have the available ExtensionContext and ExtensionAPI types, as demonstrated by the new integration test, so retaining any removes useful compile-time coverage from the tests.
AGENTS.md reference: AGENTS.md:L113-L113
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| register: async input => { | ||
| const endpointMtimeMs = (await fs.stat(path.join(input.stateRoot, "sdk", `${input.sessionId}.json`))) | ||
| .mtimeMs; | ||
| await index.append({ type: "host_registered", ...input, locator, pid: process.pid, endpointMtimeMs }); |
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When an SDK-only host's workspace is deleted or its endpoint becomes unreachable, the broker can signal it only if the registration contains the host's OS process incarnation; otherwise hasDurableProcessIdentity cannot use either the deleted workspace marker or broker-owned fallback and session.close returns close_refused. The notification-host registration already preserves this field, so include it here as well to prevent restart:sdk-broker --close-session-hosts from leaving these newly indexed hosts orphaned.
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| listPendingGates: () => [...pendingGateIds].map(gate_id => ({ gate_id })), | ||
| resolveGate: async (response: { gate_id: string }) => { | ||
| if (response.gate_id === "gate-drain") | ||
| return await new Promise(resolve => { |
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This newly added deferred gate resolution, along with the WebSocket-open wait below, constructs promises manually even though the repository contract requires Promise.withResolvers() for this pattern. Converting both waits keeps the test aligned with the project-wide promise convention.
AGENTS.md reference: AGENTS.md:L119-L119
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| await ensureBroker({ agentDir: options.agentDir }); | ||
| const index = await new SessionIndex(options.agentDir).open(); | ||
| const locator = { repo: path.resolve(ctx.cwd), stateRoot }; | ||
| await runtime.registerWithBroker({ |
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When the session index opens but registration itself persistently fails—for example, because the index has a corrupt suffix—SessionSdkHost.registerWithBroker() stores this writer before awaiting its register callback. This optional catch therefore leaves the failed writer installed, and a later shutdown or switch calls its equally failing unregister, causing runtime.stop() to reject and preventing the successor runtime from starting even though broker publication was declared best-effort. Clear the installed registration after an optional failure, or only retain it once registration succeeds.
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| const endpointMtimeMs = (await fs.stat(path.join(input.stateRoot, "sdk", `${input.sessionId}.json`))) | ||
| .mtimeMs; | ||
| await index.append({ type: "host_registered", ...input, locator, pid: process.pid, endpointMtimeMs }); |
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When a turn_start broker retry overlaps session_switch or shutdown, this registration callback pauses at fs.stat() after SessionSdkHost.registerWithBroker() has installed its writer. Teardown can therefore append host_unregistered during that pause, followed by this delayed host_registered, making the stopped predecessor the latest index entry; because its PID remains alive after a switch, session.list continues exposing the stale session for the lifetime of the process. Cancel or serialize in-flight registration with teardown, or recheck runtime authority before appending.
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| const timeout = Bun.sleep(5_000).then(() => { | ||
| throw new Error("Timed out waiting for SDK workflow gate resolutions to settle."); | ||
| }); |
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When an SDK-only session has no in-flight gate work, as in a normal print-mode shutdown, Promise.allSettled resolves immediately but this Bun.sleep(5_000) continues to hold Bun's event loop open for the full five seconds. Since print mode awaits session.dispose() and then returns without forcing process.exit, default SDK-only invocations linger after producing their output; cancel or unref the timeout once quiescence wins the race.
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MERGE_READY — exact-head evidenceExact head: The endpoint/sessionId repair remains scoped to the endpoint/broker/control-plane half of #4047. The PR description now uses Focused verification on this repaired line:
The initial failed shard was investigated rather than dismissed: its complete fixture-spawn diagnostic was No unrelated files or PRs were touched. — |
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MERGE_READY — refreshed exact-head evidenceExact head: The existing branch now contains the endpoint/sessionId repair plus deterministic direct publisher → session-index → broker → WebSocket workflow-gate coverage for Focused verification: — |
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The SDK-only transport introduced by #3846 omitted sessionId from endpoint discovery records. The broker correctly rejected those records, making durable workflow-gate control unavailable before its request could reach the host. Lore-id: 4047\nConstraint: preserve broker identity fences and avoid tmux pane input\nConfidence: high\nScope-risk: narrow\nReversibility: direct\nTested: bun test sdk-broker-host-integration; bun test sdk-host-wiring durable gate; bun --cwd=packages/coding-agent run check
The SDK runtime extension now requires its broker state root. The invocation harness must supply it so the durable workflow-gate regression suite typechecks and exercises the production admission path. Lore-id: pr-4064-harness-root Confidence: high Scope-risk: narrow Reversibility: trivial Tested: bun test packages/coding-agent/src/sdk/host/session-runtime.test.ts; bun test packages/coding-agent/test/sdk-broker-host-integration.test.ts; bun --cwd=packages/coding-agent run check
Dev now retains terminal host rows and reports stale endpoint authority after unregister. The rebased workflow-gate host coverage must assert those durable broker contracts rather than the superseded removal semantics. Lore-id: pr-4064-rebase-dev\nConfidence: high\nScope-risk: narrow\nReversibility: trivial\nTested: bun test packages/coding-agent/src/sdk/host/session-runtime.test.ts; bun test packages/coding-agent/test/sdk-broker-host-integration.test.ts; bun --cwd=packages/coding-agent run check
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| const agentDir = path.join(cwd, ".gjc", "agent"); | ||
| await mkdir(path.dirname(agentDir), { recursive: true }); | ||
| await writeFile(agentDir, "blocked"); | ||
| const handlers = new Map<string, (event: unknown, ctx: any) => Promise<void> | void>(); |
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Both newly added broker tests declare their handler context as any and cast the API object with as any, bypassing checks that the mocked extension surface matches ExtensionContext and ExtensionAPI. These mocks can be expressed with the actual types, as the integration test in this same change does, and the repository contract explicitly prohibits unnecessary any.
AGENTS.md reference: AGENTS.md:L113-L113
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| @@ -1,8 +1,9 @@ | |||
| import { describe, expect, test } from "bun:test"; | |||
| import { mkdtemp, readFile, rm } from "node:fs/promises"; | |||
| import { mkdir, mkdtemp, readFile, rm, writeFile } from "node:fs/promises"; | |||
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The changed import adds more named imports from node:fs/promises, while the repository convention requires Node modules—including fs/promises—to use namespace imports. Convert this to import * as fs from "node:fs/promises" and qualify the helper calls so the new tests follow the enforced filesystem convention.
AGENTS.md reference: AGENTS.md:L132-L132
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MERGE_READY — exact-head verdictExact head: Adversarial exact-head review found no blocker. The broker publication remains fail-closed for lifecycle-required sessions, retries only optional registration after recovery, binds endpoint identity to Focused verification: — gaebal-gajae |
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Summary
sessionIdin SDK-only WebSocket endpoint records so broker identity validation can resolve the live session.workflow.gates.list, boundworkflow.gate_answer, and wrong-expectedSessionIdrejection.Scope
Refs #4047. This PR restores the SDK endpoint/broker/control-plane path once a workflow gate has been published durably. Attended-session durable workflow-gate publication and its race-safe retirement path remain separate scope; this PR does not claim to close that reproduction.
Regression attribution
PR #3846 / commit
9838ba20a57cf9ef2ba6f6843b2c983a2fd59f13replaced the native endpoint writer (which serializedsessionId) with the SDK-only WebSocket writer, which omitted it. The broker's pre-existing identity fence therefore rejected the endpoint before coordinator gate ingress reached the host.Verification
bun test packages/coding-agent/src/sdk/host/session-runtime.test.tsbun test packages/coding-agent/test/sdk-broker-host-integration.test.tsbun test packages/coding-agent/test/sdk-host-wiring.test.ts --test-name-pattern "SDK host discovers, answers, and advances a durable workflow gate"bun --cwd=packages/coding-agent run checkNo tmux pane input fallback is used.