{"type":"meta","slug":"throughput-seams","base_branch":"main","gate0_mode":"strict","preset":"cursor-codex","land_mode":"merge-to-main"}
{"type":"goal","text":"Implement amended throughput-seams contracts T1/T2/T5 as one buildable DAG while plans without throughput_policy retain byte-identical legacy behavior."}
{"type":"methodology","text":"Contract-first TDD; strict gate0 after every task; policy boundary first; journal reducers and process ownership before runner integration; daemon tick last; serialize shared-file edits; fail closed on unverified ownership."}
{"type":"intent","text":"Stop repeated dead-adapter dispatch, kill banner-then-silence attempts at exactly three minutes, reap complete process trees, and resume queued work immediately when adapters heal."}
{"type":"direction","verbatim":"legacy byte-identical when policy field absent"}
{"type":"direction","verbatim":"Wrapper banner/preamble/liveness output MUST NOT satisfy the deadline."}
{"type":"deferred","text":"T3 pipeline overlap and dependency-DAG admission","reason":"Outside amended T1/T2/T5 scope."}
{"type":"deferred","text":"T4 wave-level candidate gates and absolute gate timeout","reason":"Separate gate-topology workstream."}
{"type":"deferred","text":"T6 reviewer fallback and risk-tier review","reason":"This plan applies existing fallback doctrine to all seat types but does not redesign review policy."}
{"type":"deferred","text":"T7 resume-not-restart after non-deadline quarantine","reason":"Only first-output-deadline and adapter-heal requeue semantics are in scope."}
{"type":"deferred","text":"T8 journal payload hygiene and alert floors","reason":"No alerting or payload redesign in this seam plan."}
{"type":"deferred","text":"Delivery controller, validation receipts, CI topology, executor placement, publication credentials, and artifact deployment","reason":"Owned by separate delivery plan or later phases."}
{"type":"deferred","text":"Migration or cleanup of orphan processes predating attempt ownership","reason":"Ownership cannot be proven safely."}
{"type":"deferred","text":"Machine-wide and fleet circuit aggregation","reason":"Per-run v1 counting already bounds measured 352-quarantine failure; broader aggregation is not required."}
{"type":"deferred","text":"Legacy throughput-policy retirement","reason":"Requires proof of zero nonterminal legacy runs after deployment."}
{"type":"gated","id":"g-protected-throughput","category":"policy","needs":"Authorize declared harness source/spec/test changes","why":"Implementation touches protected src/ and spec/ paths; user explicitly requested a run-plan implementing the amended throughput spec.","options":["proceed","abort"],"status":"RESOLVED","answer":{"protectedPaths":["src/","spec/"]},"resolved_by":"user","source":"author","binds_meta":null}
{"type":"anchor","path":"docs/specs/2026-07-18-throughput-seams-design.md","what":"Amended throughput-seams design source of truth."}
{"type":"anchor","path":"docs/specs/2026-07-18-throughput-seams-design.md","what":"Non-negotiable compatibility contract: absent throughput_policy selects legacy; legacy acceptance remains byte-identical except pre-existing timestamps."}
{"type":"task","id":"t1","wave":1,"seat":"coder","tier":"high","desc":"Implement amended spec Contract 1 and Contract 4 rule 7: centralized opt-in policy, all-seat fallback gating, explicit per-adapter safe-probe argv in presets/adapters.json, and unknown-policy rejection without changing legacy defaults. Acceptance evidence: src/test/throughput-policy.test.js and test/adapters-schema.sh via `node --test src/test/throughput-policy.test.js && bash test/adapters-schema.sh`. Commit only: src/throughput-policy.js, src/test/throughput-policy.test.js, presets/adapters.json, spec/adapters.schema.json, test/adapters-schema.sh.","deps":[],"requires_decision":"g-protected-throughput"}
{"type":"task","id":"t2","wave":2,"seat":"coder","tier":"high","desc":"Implement amended spec Contract 2: journal-derived per-run adapter circuit reducer, exact two-failure opening, generation idempotency, and coder/reviewer/fixer fallback only while primary circuit is open. Acceptance evidence: src/test/adapter-circuit.test.js via `node --test src/test/adapter-circuit.test.js`. Commit only: src/engine/adapter-circuit.js, src/test/adapter-circuit.test.js.","deps":["t1"],"requires_decision":"g-protected-throughput"}
{"type":"task","id":"t3","wave":2,"seat":"coder","tier":"high","desc":"Implement amended spec Contract 3 ownership foundation: transient cgroup v2 attempt owner, verified PID/PGID/cgroup generation, TERM-to-KILL teardown receipt, descendant-zero lease release, and fail-closed unverified-host behavior. Acceptance evidence: src/test/attempt-process.test.js and src/test/fail-taxonomy.test.js via `node --test src/test/attempt-process.test.js src/test/fail-taxonomy.test.js`. Commit only: src/engine/attempt-process.js, src/fail-taxonomy.js, src/test/attempt-process.test.js, src/test/fail-taxonomy.test.js.","deps":["t1"],"requires_decision":"g-protected-throughput"}
{"type":"task","id":"t4","wave":3,"seat":"coder","tier":"high","desc":"Integrate amended spec Contract 2 with quarantine and scheduler admission: enrich infrastructure failures with adapter identity, pause only open-adapter admissions, preserve manual pause, keep dependents queued, and rebind queued attempts through existing fallback dispatch. Acceptance evidence: src/test/adapter-circuit.test.js and src/test/engine-scheduler.test.js via `node --test src/test/adapter-circuit.test.js src/test/engine-scheduler.test.js`. Commit only: src/engine/repair.js, src/engine/scheduler.js, src/test/adapter-circuit.test.js, src/test/engine-scheduler.test.js.","deps":["t2"],"requires_decision":"g-protected-throughput"}
{"type":"task","id":"t5","wave":3,"seat":"coder","tier":"high","desc":"Implement amended spec Contract 3 runner/watchdog seam: count only parsed Codex/Cursor structured agent-protocol events or verified post-baseline workspace activity; exclude banner, preamble, liveness, unstructured streams, CPU, and journal writes; breach exactly at 180000ms and compose cgroup teardown with existing PGID watchdog. Acceptance evidence: src/test/runner-transcript.test.js, src/test/watchdog.test.js, and banner-then-silence fixture in src/test/attempt-process.test.js via `node --test src/test/runner-transcript.test.js src/test/watchdog.test.js src/test/attempt-process.test.js`. Commit only: src/runner.js, src/engine/watchdog.js, src/test/runner-transcript.test.js, src/test/watchdog.test.js, src/test/attempt-process.test.js, test/fixtures/agent-logs/banner-then-silence.log.","deps":["t3"],"requires_decision":"g-protected-throughput"}
{"type":"task","id":"t6","wave":3,"seat":"coder","tier":"high","desc":"Implement amended spec Contract 4 probe engine: reduce due open circuits from journals, claim one bounded probe per generation, consume catalog-owned argv without runtime derivation, close only on primary heal, and leave unsupported/down circuits open. Acceptance evidence: src/test/adapter-health.test.js via `node --test src/test/adapter-health.test.js`. Commit only: src/engine/adapter-health.js, src/test/adapter-health.test.js.","deps":["t1","t2"],"requires_decision":"g-protected-throughput"}
{"type":"task","id":"t7","wave":4,"seat":"coder","tier":"high","desc":"Integrate amended spec Contract 3 with task lifecycle: persist attempt.started before deadline timing, dispatch implementation/fixer/reviewer inside attempt owner, requeue with new generation only after descendant-zero teardown, and preserve durable task state without quarantine/pruning. Acceptance evidence: src/test/engine-ship.test.js and src/test/attempt-process.test.js via `node --test src/test/engine-ship.test.js src/test/attempt-process.test.js`. Commit only: src/engine/ship.js, src/test/engine-ship.test.js, src/test/attempt-process.test.js.","deps":["t4","t5"],"requires_decision":"g-protected-throughput"}
{"type":"task","id":"t8","wave":5,"seat":"coder","tier":"high","desc":"Integrate amended spec Contract 4 and cross-mechanism invariants into harnessd: add adapterHealth tick after watchdog and before promote, reconcile incomplete teardown, wake scheduler without overriding manual pause, and preserve legacy backoff paths. Acceptance evidence: src/daemon.test.js, src/test/adapter-health.test.js, and src/test/engine-scheduler.test.js via `node --test src/daemon.test.js src/test/adapter-health.test.js src/test/engine-scheduler.test.js`. Commit only: src/daemon.js, src/daemon.test.js, src/test/adapter-health.test.js, src/test/engine-scheduler.test.js.","deps":["t6","t7"],"requires_decision":"g-protected-throughput"}
{"type":"task","id":"t9","wave":6,"seat":"coder","tier":"high","desc":"Prove amended spec Contracts 1-4 end to end: 352-quarantine circuit bound, banner-then-silence breach at exactly +3min, whole-tree teardown, heal-triggered immediate requeue, warning-free full suite, release build, and actual bin/runplan/bin/harnessd launcher resolution while absent throughput_policy stays legacy byte-identical. Acceptance evidence: test/throughput-seams-runtime.test.sh via `bash test/throughput-seams-runtime.test.sh && make test`. Commit only: test/throughput-seams-runtime.test.sh, test/fixtures/throughput-legacy/, test/fixtures/throughput-cgroups/.","deps":["t8"],"requires_decision":null}