refactor(task): route latch and isInitialized writes through events (RSK-06) by edelauna · Pull Request #2128 · Zoo-Code-Org/Zoo-Code

edelauna · 2026-10-21T02:29:31Z

Related GitHub Issue

Closes: #1796

Description

This PR sends every write of abort, abandoned, abortReason, and isInitialized through the Task write helpers from #1794. Each helper sets the field and sends an event to the run-state kernel. The fields stay authoritative. Reads do not change, so behavior does not change.

Changes:

ClineProvider.cancelTask calls setAbortReason("user_cancelled"), then abortTask(), then requestAbandon(). This keeps the order that issue fix(task-lifecycle): preserve parent-child link when delegated subtask is interrupted #560 needs.
Task.abortTask calls requestAbort(isAbandoned). This also covers removeClineFromStack, createTaskWithHistoryItem, and the checkpoint-restore delete.
Task.dispose calls requestDispose(). It does not change the reason.
The chunk-loop catch and the retry backoff call setAbortReason("user_cancelled"). abortTask() follows each call.
The four isInitialized writes call markInitialized().
resumeAfterDelegation no longer resets the three latches. The only caller passes a new instance that createTaskWithHistoryItem(..., { startTask: false }) builds. The caller also skips any instance that already has abort or abandoned set. The stream-field resets stay for [lifecycle-RSK] RSK-10: Route stream, ask, and turn-field writes through events #1804.
ROUTED_FIELDS lists the four fields, so the divergence check now compares them.

Points for reviewers:

The cancelTask reason write changed from overwrite to first-wins. Nothing changes today, because user_cancelled is the only value any code assigns.
The chunk-loop call uses setAbortReason("user_cancelled"), not reasonSet(cancelReason) as the issue text says. RSK-19 changed that line. Passing cancelReason would bring back race R-4.
Race R-4 is not part of this PR. [lifecycle-RSK] RSK-19: Keep the first abort reason #1802 owns it.

Test Procedure

Run these commands from src:

pnpm exec vitest run core/task core/webview
pnpm exec tsc --noEmit
pnpm exec eslint --max-warnings=0 <changed files>

Run this command from the repository root:

pnpm lifecycle:model-check

New and changed tests:

ClineProvider.flicker-free-cancel.spec.ts: the task doubles define the new helpers. One test asserts the order setAbortReason, abortTask, requestAbandon.
Task.run-shadow.spec.ts: tests for the cancelTask event order, dispose keeping the reason, and the report for an abandon before an abort.
Task.abort-reason-race.spec.ts: the specs use the helpers and assert the kernel reason.

Pre-Submission Checklist

Issue Linked: This PR is linked to an approved GitHub Issue (see "Related GitHub Issue" above).
Scope: My changes are focused on the linked issue (one major feature/fix per PR).
Self-Review: I reviewed my own code with care.
Writing Style: The PR title and description use Simplified Technical English (ASD-STE100): short sentences, plain words, active voice, one idea per sentence, no contractions.
Testing: New and/or updated tests have been added to cover my changes (if applicable).
Visual Snapshot (UI changes only): Not applicable. This PR has no UI change.
Documentation Impact: I checked if my changes need documentation updates (see "Documentation Updates" section below).
Contribution Guidelines: I read and agree to the Contributor Guidelines.

Documentation Updates

No documentation updates are required.

The architecture doc paragraph on the removed latch resets is already updated in this PR.

Additional Notes

The resumeAfterDelegation and markInitialized call sites have no direct event tests. With ROUTED_FIELDS filled, a direct write at these sites shows as a divergence on prerelease builds.

🤖 Generated with Claude Code

…e events (RSK-06)

coderabbitai · 2026-10-21T02:29:39Z

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src/core/task/run-state/__tests__/runStateDivergence.spec.ts

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88-105: LGTM!

📝 Summary

Summary by CodeRabbit

Bug Fixes
- Improved task cancellation and resumption handling to preserve cancellation state correctly.
- Ensured user-initiated cancellations consistently record their reason and follow the expected lifecycle sequence.
- Improved detection and reporting of inconsistent task state transitions.
Documentation
- Clarified that lifecycle latches are scoped to individual task instances and remain preserved when resuming after delegation.
Tests
- Expanded coverage for cancellation ordering, disposal, abort reasons, task resumption, and repeated stream-ending errors.

Task lifecycle updates now route initialization, abort, disposal, and cancellation changes through run-state methods. Delegation resume no longer clears abort-related latches. Divergence checks compare additional run-state fields.

Changes: Task lifecycle state routing

Layer / File(s)	Summary
Task instance lifecycle transitions `src/core/task/Task.ts`, `docs/architecture/task-lifecycle-target-architecture.md`	Startup and resume paths mark initialization through the run-state model. Disposal uses a run-state transition. Delegation resume resets streaming state without clearing latches, as reflected in the architecture documentation.
Cancellation reason and latch routing `src/core/task/Task.ts`, `src/core/webview/ClineProvider.ts`, `src/core/task/__tests__/Task.abort-reason-race.spec.ts`, `src/core/task/__tests__/Task.run-shadow.spec.ts`, `src/core/webview/__tests__/ClineProvider.flicker-free-cancel.spec.ts`	Cancellation paths set abort reasons and request abort or abandonment through Task methods. Tests verify cancellation ordering, latched reasons, and disposal state.
Run-state divergence checks `src/core/task/run-state/runStateDivergence.ts`, `src/core/task/__tests__/Task.run-shadow.spec.ts`, `src/core/task/run-state/__tests__/runStateDivergence.spec.ts`	Divergence comparison now includes abort, abandonment, abort reason, and initialization fields. Tests cover default field comparison, stream-ended rejection reporting, and an abandonment-before-abort mismatch.

Priority: ⬇️ Low

Estimated code review effort: 3 (Moderate) | ~25 minutes

Change: Refactor

Merge Risk: ⚪ Minimal · up to e8988

The default divergence behavior is covered, so no incremental merge risk remains.

Important

Pre-merge checks failed

Please resolve all errors before merging. Addressing warnings is optional.

Failed checks: 1 warning · 1 inconclusive

Check name	Status	Explanation	Resolution
Regression Evidence		The changed delegation-resume behavior still lacks focused coverage. `Task.resumeAfterDelegation()` now preserves `abort`, `abandoned`, and `abortReason`, resets only stream fields, and calls `markIni…	Add focused Task-level tests for the real `resumeAfterDelegation()` path. Stub history/environment persistence and the continuation loop, seed `abort`, `abandoned`, and `abortReason`, then assert the latches remain unchanged, stream fields …
Linked Issues check		For `#1796`, the supplied change summary supports the required routing. `Task` uses `requestAbort()`, `requestDispose()`, `setAbortReason()`, and `markInitialized()`. `cancelTask` preserves reason, abor…	Provide authoritative results for the required automated tests and the nightly comparison. The results must show passing tests and zero untagged divergence and rejection for the routed paths.

Passed checks: 6 passed

Check name	Status	Explanation
Title check		The title clearly identifies the main change: routing task latch and isInitialized writes through events. It is concise and specific.
Description check		The description includes the linked issue, implementation details, reviewer notes, test procedure, changed-test summary, checklist, documentation impact, and additional notes. The unchecked self-revie…
Out of Scope Changes check		The changed source, divergence configuration, architecture documentation, and tests all support `#1796`. The supplied summary shows no unrelated product behavior or unrelated refactoring.
Security Boundaries		No changed path meets a security failure condition. The production diff only replaces direct lifecycle-field writes with Task helpers, removes latch resets during delegation, and enables divergence ch…
Persistence Integrity		No changed persistence path meets the failure condition. The PR changes in-memory task latches and run-state events. `abortTaskOnce()` still awaits `saveClineMessages()`, and `ClineProvider.cancelTask…
Lifecycle Resource Cleanup		No changed lifecycle path introduces a resource leak or duplicate work. `cancelTaskInternal` still sets the reason, calls `abortTask()`, then abandons the task; the helpers preserve synchronous latch …

Full details: Description check

Explanation

The description includes the linked issue, implementation details, reviewer notes, test procedure, changed-test summary, checklist, documentation impact, and additional notes. The unchecked self-review and contribution-guidelines items are minor omissions and do not make the description incomplete.

Full details: Security Boundaries

Explanation

No changed path meets a security failure condition. The production diff only replaces direct lifecycle-field writes with Task helpers, removes latch resets during delegation, and enables divergence checks. ClineProvider.cancelTaskInternal still uses the fixed "user_cancelled" value and preserves reason → abort → abandon ordering. The changed code does not handle secrets or PII, execute unvalidated input, or bypass approval or allowlist controls.

Full details: Persistence Integrity

Explanation

No changed persistence path meets the failure condition. The PR changes in-memory task latches and run-state events. abortTaskOnce() still awaits saveClineMessages(), and ClineProvider.cancelTask() still awaits the abort promise before rehydration. The routed fields are not part of the persisted HistoryItem or taskMetadata payload, so no changed write, atomicity, rollback, or default-propagation defect is introduced.

Full details: Lifecycle Resource Cleanup

Explanation

No changed lifecycle path introduces a resource leak or duplicate work. cancelTaskInternal still sets the reason, calls abortTask(), then abandons the task; the helpers preserve synchronous latch writes. disposeOnce still clears the idle timer and disposes task resources, with requestDispose() replacing only the direct abort write. resumeAfterDelegation() is called for the newly constructed parent instance from createTaskWithHistoryItem, so removing latch resets does not restart an aborted instance. The divergence configuration and event routing add state reporting only.

Full details: Regression Evidence

Explanation

The changed delegation-resume behavior still lacks focused coverage. Task.resumeAfterDelegation() now preserves abort, abandoned, and abortReason, resets only stream fields, and calls markInitialized() (src/core/task/Task.ts:3768-3784). The production caller uses the real method (src/core/webview/ClineProvider.ts:4483), but delegation tests replace it with vi.fn() mocks; one mock only simulates skipPrevResponseIdOnce. No Task-level test seeds the latches and verifies preservation, stream resets, initialization, and run-state phase. Task.run-shadow.spec.ts calls markInitialized() directly, so it tests the helper rather than the changed startup/history call sites. Existing startup/history tests assert notices, asks, and loop starts, but not isInitialized, runState.phase, or rejections.

Resolution

Add focused Task-level tests for the real resumeAfterDelegation() path. Stub history/environment persistence and the continuation loop, seed abort, abandoned, and abortReason, then assert the latches remain unchanged, stream fields reset, and isInitialized plus the run-state phase update without rejection. Add focused startup and history-resume tests for each changed markInitialized() path, including the pending-action branch, and assert field/kernel agreement with no rejection. Keep the existing cancellation and abort-race coverage.

Full details: Linked Issues check

Explanation

For #1796, the supplied change summary supports the required routing. Task uses requestAbort(), requestDispose(), setAbortReason(), and markInitialized(). cancelTask preserves reason, abort, then abandon ordering. resumeAfterDelegation no longer resets the three latches. ROUTED_FIELDS contains all four fields. The listed tests cover these paths. The evidence does not include results for the required test commands or the nightly zero-divergence and zero-rejection comparison that #1796 leaves open.

Resolution

Provide authoritative results for the required automated tests and the nightly comparison. The results must show passing tests and zero untagged divergence and rejection for the routed paths.

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github-actions · 2026-10-21T02:31:27Z

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codecov · 2026-10-21T02:36:15Z

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Inline comments:
Review comments at @src/core/task/run-state/runStateDivergence.ts:
- Line 18: Add a focused test for findDivergences with routed omitted, using
differing projected and state values to assert mismatch results for abort,
abandoned, abortReason, and isInitialized. Keep the test independent of explicit
routed values and Task-based coverage so it verifies all four fields from
ROUTED_FIELDS are used by default.

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docs/architecture/task-lifecycle-target-architecture.md
src/core/task/Task.ts
src/core/task/__tests__/Task.abort-reason-race.spec.ts
src/core/task/__tests__/Task.run-shadow.spec.ts
src/core/task/run-state/runStateDivergence.ts
src/core/webview/ClineProvider.ts
src/core/webview/__tests__/ClineProvider.flicker-free-cancel.spec.ts

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Check persistence and lifecycle invariants: awaited atomic writes, rollback or explicit partial-failure behavior, cross-window state consistency, stale listeners/watchers, cancellation, idempotency, and safe restart/resume without lost or d...

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src/core/task/run-state/runStateDivergence.ts
src/core/task/__tests__/Task.abort-reason-race.spec.ts
src/core/task/__tests__/Task.run-shadow.spec.ts
src/core/task/Task.ts

For persisted settings, verify the complete schema/storage/runtime/webview round trip, shared default semantics, and focused true plus false/unset tests.

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src/core/webview/ClineProvider.ts
src/core/webview/__tests__/ClineProvider.flicker-free-cancel.spec.ts

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src/core/task/__tests__/Task.run-shadow.spec.ts
src/core/webview/__tests__/ClineProvider.flicker-free-cancel.spec.ts

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src/core/task/run-state/runStateDivergence.ts
src/core/task/__tests__/Task.abort-reason-race.spec.ts
src/core/task/__tests__/Task.run-shadow.spec.ts
src/core/webview/ClineProvider.ts
src/core/webview/__tests__/ClineProvider.flicker-free-cancel.spec.ts
src/core/task/Task.ts

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src/core/task/run-state/runStateDivergence.ts
src/core/task/__tests__/Task.abort-reason-race.spec.ts
src/core/task/__tests__/Task.run-shadow.spec.ts
src/core/webview/ClineProvider.ts
src/core/webview/__tests__/ClineProvider.flicker-free-cancel.spec.ts
src/core/task/Task.ts

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src/core/task/run-state/runStateDivergence.ts
docs/architecture/task-lifecycle-target-architecture.md
src/core/task/__tests__/Task.abort-reason-race.spec.ts
src/core/task/__tests__/Task.run-shadow.spec.ts
src/core/webview/ClineProvider.ts
src/core/webview/__tests__/ClineProvider.flicker-free-cancel.spec.ts
src/core/task/Task.ts

🪛 GitHub Check: mutation-diff

src/core/task/run-state/runStateDivergence.ts

[warning] 18-18: Mutation test advisory
src/core/task/run-state/runStateDivergence.ts:18: 5 mutation test gaps; example: Survived ArrayDeclaration mutant (replacement: []). See the job summary for the complete list and resolution guidance.

🔇 Additional comments: 6

src/core/task/Task.ts: 1

3096-3096: LGTM!

Also applies to: 3222-3222, 3243-3243, 3570-3570, 3664-3664, 3783-3783, 4665-4665, 4700-4700

docs/architecture/task-lifecycle-target-architecture.md: 1

232-232: LGTM!

src/core/webview/ClineProvider.ts: 1

3615-3615: LGTM!

Also applies to: 3631-3631

src/core/task/__tests__/Task.abort-reason-race.spec.ts: 1

168-169: LGTM!

Also applies to: 179-179, 206-207, 216-216

src/core/task/__tests__/Task.run-shadow.spec.ts: 1

65-88: LGTM!

Also applies to: 190-228

src/core/webview/__tests__/ClineProvider.flicker-free-cancel.spec.ts: 1

1-1: LGTM!

Also applies to: 392-398, 635-641, 662-672, 734-740, 814-820, 880-886, 952-958, 1021-1027

refactor(task): route latch and isInitialized writes through run-stat…

bebc3e8

…e events (RSK-06)

edelauna requested review from JamesRobert20 and taltas as code owners October 21, 2026 02:29

edelauna changed the title ~~refactor(task): route latch and isInitialized writes through run-stat…~~ refactor(task): route latch and isInitialized writes through events (RSK-06) Oct 21, 2026

edelauna mentioned this pull request Oct 21, 2026

[lifecycle-RSK] RSK-06: Route latch and phase writes through events #1796

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edelauna deleted the issue/1796 branch October 22, 2026 03:59

myk1yt mentioned this pull request Oct 30, 2026

fix(delegation): preserve live child delegation links across extension host startup (multi-window subtask return) #1495

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refactor(task): route latch and isInitialized writes through events (RSK-06) - #2128

refactor(task): route latch and isInitialized writes through events (RSK-06)#2128
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