[FEATURE] Add @claude stop/pause command to opt out of automatic subsequent push reviews

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

After triggering a manual review with @claude review, subsequent pushes to that PR are automatically reviewed. There's currently no way to stop this on a per-PR basis without changing repo-wide settings.

Reference: https://code.claude.com/docs/en/code-review#manually-trigger-reviews

This is problematic when:

• You only wanted a one-time review, not ongoing monitoring
• You're making rapid iterative pushes and don't want review noise on each one
• The PR has moved past the point where automated reviews are useful

Proposed Solution

Add a command like @claude stop or @claude pause that can be posted as a PR comment to opt that specific PR out of automatic subsequent push reviews.

• @claude stop — permanently stops automatic reviews on this PR
• @claude pause / @claude resume — temporarily pauses and resumes (optional, nice-to-have)

Alternative Solutions

• Disabling automatic reviews repo-wide — too broad, affects all PRs
• Ignoring the review comments — still generates noise and consumes API usage
• No current workaround for per-PR opt-out

Priority

Medium - Would be very helpful

Feature Category

Other

Use Case Example

1. Open a PR and comment @claude review to get an initial review
2. Address feedback and push several rapid follow-up commits
3. Each push triggers an automatic review, generating noise
4. Comment @claude stop to opt this PR out of further automatic reviews
5. Later, if needed, comment @claude review again for a fresh one-time review

Additional Context

_No response_

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