Distillation

Date: Sep 17, 2026

• 🟡 (01:03) Assistant specified the SessionExecutionLocal cleanup fallback as an exact durable transaction executed only after coordinator.interrupt() joins the runner and its finalizers: a terminal assistant settles and clears the claim; an incomplete durable assistant gets exactly one Step.Interrupted publication with cancelling → cancelled, then the claim is cleared; a claim with no assistant is cleared directly.
• 🟡 (01:05) Inspection of packages/core/src/session/run-coordinator.ts:99-125 confirmed interrupt(key, cleanup) marks the active entry as stopping, clears pendingWake, calls Fiber.interrupt(owner), executes and captures cleanup before deleting the active entry or starting a pending successor, completes entry.done, propagates cleanup failure, and runs the sequence as Effect.uninterruptible.
• 🟡 (01:05) Assistant selected coordinator cleanup as the ownership boundary because it executes after Fiber.interrupt(owner) and before any pending successor starts; began centralizing exact cancellation finalization in packages/core/src/session/execution/local.ts with event access added to the execution adapter.
• 🟡 (01:07) Dependency assessment: adding cancellation finalization to SessionExecutionLocal creates only a Core-to-Core dependency; SessionExecutionLocal already owns durable claim lifecycle, EventV2/SessionEvent remain Schema/Core, and no Server dependency enters Core.
• 🟡 (01:08) Modified packages/core/src/session/execution/local.ts to add the coordinator-cleanup cancellation fallback.
• 🟡 (01:09) Initial tsgo --noEmit after the fallback failed in packages/core/src/session/execution/local.ts: line 140 had TS2769 from an invalid SQLite column overload; line 153 had TS2322 because (Session.Message.ID | null) was assigned where non-null Session.Message.ID was required; line 154 had TS2322 because number was assigned to Utc. Numerous packages/core/test/session-execution-local.test.ts errors also showed low-level execution tests unexpectedly requiring EventV2.Service, with EventV2.Service confused with Database.Service in inferred environments.
• 🟡 (01:09) Assistant diagnosed that unconditional EventV2 access in SessionExecutionLocal.make() unnecessarily forced every low-level execution test to provide EventV2. Fix in packages/core/src/session/execution/local.ts: make event access optional at construction and require it only for the incomplete-assistant fallback; tighten phase/null narrowing; use the event schema’s Utc timestamp type.
• 🟡 (01:10) After the typing/dependency fix, tsgo --noEmit completed without a reported error, but the targeted runner suite had 4 passing, 105 filtered out, 1 failing test, and 18 expect() calls across 1 file in 5.65s. Failure: SessionRunnerLLM > retains cancellation ownership when interrupted tool publication defects at packages/core/test/session-runner.test.ts:3938; the test expected Exit.isFailure(interrupted) === true, but received false.
• 🟡 (01:10) Assistant concluded the old publication-defect regression expectation was stale: the new coordinator cleanup fallback now closes the case after finalizers, so session.interrupt() succeeds rather than leaving a stranded "cancelling" claim. Planned replacement assertions: interruption succeeds, durable tool/step interruption is projected, and the execution claim is removed; a separate regression continues proving ownership remains retained until cleanup can finish.
• 🟡 (01:11) Inspection of packages/core/test/session-runner.test.ts:3906-3948 showed the stale regression creates SQLite trigger fail_interrupted_tool_publication, aborting inserts where NEW.type = 'session.next.tool.failed.1' with message "crash before interrupted tool publication". The test streamed LLMEvent.stepStart({ index: 0 }), then tool call call-interrupt-publication-failure, and previously expected a failed interrupt, runner failure, a remaining phase: "cancelling" claim, and a projected running tool.
• 🟡 (01:11) Assistant clarified fallback semantics: coordinator cleanup publishes Step.Interrupted, whose projector atomically reconciles unresolved tools, so successful cleanup does not require the failed per-tool session.next.tool.failed.1 event. Updated the regression to require successful interrupt, no remaining claim, and tool call-interrupt-publication-failure projected with error status.
• 🟡 (01:12) Modified packages/core/test/session-runner.test.ts with the revised publication-defect regression expectations.
• 🟡 (01:13) Validation after the test update succeeded: tsgo --noEmit reported no error; targeted runner tests had 5 pass, 105 filtered out, 0 fail, and 21 expect() calls across 1 file in 4.24s; execution-adapter lifecycle tests had 12 pass, 0 fail, and 23 expect() calls across 1 file in 3.74s.
• 🟡 (01:13) Assistant reported both newly exposed commit-to-notification windows and all execution-adapter lifecycle tests passing, then moved to remaining work: verify recovery scan-index artifacts, regenerate both current client surfaces using the prescribed command, run the complete recovery gate, and then perform broader validation.
• 🟡 (01:13) Work-state list: 1. “Preserve cancelling claims when interruption settlement defects” — completed, high priority; 2. “Persist explicit resume intent before pending input promotion” — completed, high priority; 3. “Add bounded recovery claim scan index” — in progress, high priority; 4. “Regenerate current client contracts through packages/client” — pending, high priority; 5. “Run full package validation and isolated artifact restart smoke” — pending, high priority; 6. “Freeze revised candidate and obtain independent correctness and security approval” — pending, high priority.
• 🟡 (01:14) Verified session_execution_recovery_scan_idx exists in four synchronized artifacts: packages/core/schema.json:2306; packages/core/src/database/schema.gen.ts:289 with CREATE INDEX \session_execution_recovery_scan_idx` ON `session_execution` (`recovery_error`,`expires_at`,`time_created`,`id`); packages/core/src/database/migration/20260914170650_session-recovery.ts:49 with the same columns; and packages/core/src/session/sql.ts:240.
• 🟡 (01:15) Migration consistency check read /tmp/opencode-core-migration-check-R4opKj/incremental.config.ts and found no schema changes/no incremental migration; full-schema check read /tmp/opencode-core-migration-check-R4opKj/full.config.ts and generated /tmp/opencode-core-migration-check-R4opKj/full/20260917011442_schema/migration.sql.
• 🟡 (01:15) Assistant concluded the bounded recovery scan index is synchronized across the squashed migration, source schema, generated schema, and snapshot, with migration consistency passing and no incremental delta.
• 🟡 (01:15) Work-state update: items 1–3 were completed; “Regenerate current client contracts through packages/client” moved to in progress; “Run full package validation and isolated artifact restart smoke” and “Freeze revised candidate and obtain independent correctness and security approval” remained pending.
• 🟡 (01:16) Ran the prescribed current-client generator command from packages/client: bun run script/build.ts.
• 🟡 (01:16) Generated packages/client/src/generated/types.ts contains readonly requestExecution?: boolean at lines 778 and 1272, event type "session.next.prompt.execution_requested" at lines 784 and 1278, and event type "session.next.step.recovered" at lines 908 and 1402.
• 🟡 (01:17) Confirmed Effect-client generated artifacts: packages/client/src/generated-effect/index.ts, packages/client/src/generated-effect/client.ts, packages/client/src/generated-effect/client-error.ts, and packages/client/src/generated-effect/.httpapi-codegen.json.
• 🟡 (01:18) Inspection of packages/client/src/generated-effect/index.ts showed it exports { ClientError } from ./client-error and * as OpenCode from ./client.
• 🟡 (01:18) Inspection of packages/client/src/generated-effect/client.ts:1-60 confirmed it is generated by @opencode-ai/httpapi-codegen, imports ClientApi from ../contract, defines RawClient = HttpApiClient.ForApi<typeof ClientApi>, maps HttpClientError, schema errors, and Sse.Retry into ClientError, and adapts generated endpoint groups including health, location, agent, and session endpoints.
• 🟡 (01:18) Assistant reported the regenerated current client includes requestExecution, PromptExecutionRequested, Step.Interrupted, and Step.Recovered; the Effect client consumes the generated contract instead of duplicating event unions.
• 🟡 (01:18) Before the full validation gate, assistant removed the ineffective runner-level Effect.onInterrupt reconciliation attempt from packages/core/src/session/runner/llm.ts, leaving coordinator cleanup as the single guaranteed cancellation fallback rather than retaining two competing finalizers.