fix(task): don't lose chat box input when resuming a task with Continue

[nh2]

Text and images typed into the chat box were discarded when the user clicked Continue on a resumed task instead of pressing Send, and undo could not bring them back.

Assisted-by: Claude Opus 5.5 with Zoo Code

Related GitHub Issue

Closes: #487

Description

The Continue button no longer irrevocably deletes the text typed in the chat box.

Test Procedure

Automatic test added; fails without the fix.

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 have performed a thorough self-review of my code.
• Testing: New and/or updated tests have been added to cover my changes (if applicable).
• Documentation Impact: I have considered if my changes require documentation updates (see "Documentation Updates" section below).
• Contribution Guidelines: I have read and agree to the Contributor Guidelines.

Visual Snapshots

Not needed, just fixes what I showed in the video of the original issue.

Documentation Updates

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• src/core/task/__tests__/Task.persistence.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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🔇 Additional comments (1)

src/core/task/__tests__/Task.persistence.spec.ts (1)

2220-2295: LGTM!

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📝 Summary

Summary by CodeRabbit

• Bug Fixes
  • Resuming a task now includes chat-box text or images as user feedback in the resumed request, including when continuing a task or responding to a message.
  • Continuing with an empty chat box sends only the standard task-resumption prompt, without adding user feedback.

Walkthrough

Task resumption now records and forwards chat-box text or images when present. Tests cover Continue and Send with populated input, image-only Continue, and Continue with empty input.

Changes

Task resumption feedback

Layer / File(s)	Summary
Resume task with chat-box feedback src/core/task/Task.ts, src/core/task/__tests__/Task.persistence.spec.ts	Task resumption processes feedback for a "messageResponse" or when text or images are present. Tests verify that populated input is recorded and forwarded, and that empty Continue input does not create feedback.

Priority: ➖ Normal

Estimated code review effort: 2 (Simple) | ~10 minutes

Change: Bug fix · Severity of issue fixed: Low

Merge Risk: ⚪ Minimal · up to 1f282

The tests cover populated and empty Continue actions, including image-only input. No actionable merge-blocking risk remains after normal checks.

Security Architecture Review

Security architecture risk: 🔵 Low · up to 1f282

Continue now includes entered text and images when resuming a task. No new permissions or submission destinations were identified. Recovery after interrupted saves and overlapping resumptions was not fully established.

Retained concerns
No architecture-level concerns identified.

Security review details

Security Blast Radius

• inferred — The demonstrated exposure change is additional chat-box content reaching the resumed task’s feedback storage and configured model request. The production diff does not add identities, permissions, tool authority, or submission destinations; downstream model behavior was not independently assessed.

Trust Boundaries and Controls

• observed — Captured input remains task-associated user content: text is wrapped as user_message content and images use the existing image formatter before entering the existing task loop. These formatting steps do not themselves establish a security validation boundary.

Resilience and Maintainability Implications

• observed — Resumption checks abort or abandonment after loading saved messages, treats intentional cancellation errors as expected, and uses a loop conditioned on not being aborted. These existing controls do not make the preceding persistence steps atomic.

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Caution

Pre-merge checks failed

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

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❌ Failed checks (1 error, 1 warning)

Check name	Status	Explanation	Resolution
Persistence Integrity	❌ Error	The new Continue-input branch calls await this.say("user_feedback", text, images) in resumeTaskFromHistory. That path adds the feedback to memory, then addToClineMessages awaits `saveClineMessag…	Propagate or handle the persistence result for this feedback path. Retry the failed save or stop task resumption and retain the text and images in a recoverable state until the feedback is durable. Do not continue the API handoff as if feed…
Regression Evidence	⚠️ Warning	The new Continue tests do not isolate the text-only input case. In src/core/task/Task.ts, nonempty text independently activates feedback persistence and API forwarding. The `text and image via Con…	Add a focused resumeTaskFromHistory test where ask() returns response: "yesButtonClicked", nonempty text, and no images. Assert that say("user_feedback", text, ...) records the text and that initiateTaskLoop receives the corresp…

✅ Passed checks (6 passed)

Check name	Status	Explanation
Linked Issues check	✅ Passed	Issue #487 requires input to remain available or be sent when the user clicks Continue. Task.ts now records nonempty text or images as user_feedback and includes them in resumed API input. The tes…
Out of Scope Changes check	✅ Passed	The whole-PR changes address input forwarding during task resumption. The incremental changes only strengthen tests for that behavior. No unrelated changes are shown.
Security Boundaries	✅ Passed	The changed path in src/core/task/Task.ts records nonempty resume text or images as user_feedback and forwards them as user content to the resumed API request. It does not execute that content or …
Lifecycle Resource Cleanup	✅ Passed	The changed condition in resumeTaskFromHistory only records non-empty input with say("user_feedback", ...) and forwards it to the existing initiateTaskLoop call. The say path persists and post…
Title check	✅ Passed	The title clearly identifies the main fix: preserving chat-box input when continuing a resumed task.
Description check	✅ Passed	The description links issue #487, explains the input-loss problem, reports an automatic test, and completes the checklist. The test procedure is brief, but the description is mostly complete.

Full details: Regression Evidence

Explanation

The new Continue tests do not isolate the text-only input case. In src/core/task/Task.ts, nonempty text independently activates feedback persistence and API forwarding. The text and image via Continue case also supplies an image, so it would still pass if the text condition were removed. The image-only and empty-input cases do not cover nonempty text without images, which is the reported data-loss scenario.

Resolution

Add a focused resumeTaskFromHistory test where ask() returns response: "yesButtonClicked", nonempty text, and no images. Assert that say("user_feedback", text, ...) records the text and that initiateTaskLoop receives the corresponding <user_message> text block.

Full details: Persistence Integrity

Explanation

The new Continue-input branch calls await this.say("user_feedback", text, images) in resumeTaskFromHistory. That path adds the feedback to memory, then addToClineMessages awaits saveClineMessages() but ignores its boolean result. saveClineMessages() catches write errors and returns false. The resume flow can therefore continue to the API handoff without a durable user-feedback record after a ui_messages write failure. A shutdown before a later successful save loses that record. The new path has no retry, rollback, or explicit partial-failure handling.

Resolution

Propagate or handle the persistence result for this feedback path. Retry the failed save or stop task resumption and retain the text and images in a recoverable state until the feedback is durable. Do not continue the API handoff as if feedback persistence succeeded.

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✅ All modified and coverable lines are covered by tests.

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Actionable comments posted: 2

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Inline comments:
Review comments at @src/core/task/__tests__/Task.persistence.spec.ts:
- Around line 2221-2222: Update the parameterized Continue test in
Task.persistence.spec.ts to include a yesButtonClicked case with empty text and
an image. Make the text assertion conditional on text being present, and
strengthen the image assertion to verify the submitted image data, using the
image source data field.

Review comments at @src/core/task/Task.ts:
- Line 2989: Update the empty-Continue test’s assertion on the mocked say
function to count calls whose type is user_feedback, rather than using
expect.anything() for its arguments, so calls with undefined arguments are
detected.

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📒 Files selected for processing (2)

• src/core/task/Task.ts
• src/core/task/__tests__/Task.persistence.spec.ts

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📓 Path-based instructions (5)

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...

⚙️ CodeRabbit configuration file

Files:

• src/core/task/Task.ts
• src/core/task/__tests__/Task.persistence.spec.ts

Require regression coverage at the lowest valid harness with behavior-focused assertions, including relevant negative, error, false/unset, and boundary cases.

⚙️ CodeRabbit configuration file

Files:

• src/core/task/__tests__/Task.persistence.spec.ts

Check strict typing and exhaustive behavior across normal, boundary, error, cancellation, retry, and compatibility paths.

⚙️ CodeRabbit configuration file

Files:

• src/core/task/Task.ts
• src/core/task/__tests__/Task.persistence.spec.ts

Verify extension/webview contracts, cancellation and error propagation, VS Code lifecycle correctness, and behavior under retries and partial failure.

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Files:

• src/core/task/Task.ts
• src/core/task/__tests__/Task.persistence.spec.ts

Act as an adversarial second-opinion reviewer.

⚙️ CodeRabbit configuration file

Files:

• src/core/task/Task.ts
• src/core/task/__tests__/Task.persistence.spec.ts

🪛 GitHub Check: mutation-diff

src/core/task/Task.ts

[warning] 2989-2989: Mutation test advisory
src/core/task/Task.ts:2989: 11 mutation test gaps; example: NoCoverage ConditionalExpression mutant (replacement: true). See the job summary for the complete list and resolution guidance.

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