[DEVEX-1523] Overhaul AI reviewer prompt to reduce noise

[ronneseth]

Summary

• Claude now reads existing review threads before posting and skips any issue already discussed
• Three clear decision paths: silent approve, inline comments only (no summary), or defer on complex PRs
• Skips very large diffs (>1500 lines) entirely rather than posting incomplete reviews
• No more summary comments on approval — just a silent approve
• Never re-raises issues a human already responded to

JIRA: DEVEX-1523

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PR Summary

Low Risk
Low risk workflow/prompt-only change, but it alters automated review behavior (can now defer on large/complex diffs and avoids re-commenting), which may affect CI review outcomes.

Overview
Updates the claude-review.yaml GitHub Action prompt to be more conservative and less noisy by reading existing PR/inline review threads first and only raising new issues.

Adds a configurable max_diff_lines threshold (default 1500) to defer to human review for large/complex PRs, and restructures the instructions into two explicit outcomes: silent approve (AI Review: Approved) or inline-comments + comment review (no approvals when concerns exist). Also expands allowed tooling to include gh api for fetching existing review comments.

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Cursor Bugbot has reviewed your changes and found 1 potential issue.

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Review comments fetch not paginated

Medium Severity

Step 1 tells the reviewer to load all existing inline comments via gh api, but the command has no --paginate. GitHub returns about 30 review comments per page, so busy PRs can hide older threads and the model may re-raise resolved issues or duplicate comments despite the new rules.

 

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