Code Review

A dual-purpose skill to either (1) systematically retrieve and address pull request review comments on GitHub, or (2) perform a code review on changes in the workspace.

Workflow Selection

At the start of execution, identify the user's intent:

• Mode A: Address / Fix Review Comments: Follow this mode if the user wants to address, fix, or resolve comments/feedback from a prior or active review (e.g., "fix PR comments", "address review notes", "resolve feedback", "address /code-review").
• Mode B: Perform Code Review: Follow this mode if the user wants a review of their changes or the current workspace (e.g., "review my code", "check these changes", "do a code review", "/code-review").

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Mode A: Address / Fix Review Comments

Systematically retrieve and fix comments from a PR review.

1. Locate current PR and comments

• Run git status to find the current branch.
• Run gh pr status to find the active pull request number and repository information.
• Fetch Comments (Avoid Missing Inline Comments): Standard commands like gh pr view <PR_NUMBER> --comments only return high-level conversation summaries and completely omit inline code review comments made in the diff. To reliably retrieve the complete list of inline review comments, query the GitHub API directly:

  gh api repos/:owner/:repo/pulls/<PR_NUMBER>/comments --jq '.[] | {id, path, line, body}'
  

2. Parse and analyze comments

• Extract the list of review comments. Focus on unresolved or actionable requests.
• For each comment, identify the affected file path, line numbers, and expected outcome.
• Check for Stale/Addressed Comments: Before making any code modifications, verify if the comment is already addressed or stale (e.g. if the target code has already been changed or deleted in a recent commit). Mark such comments as "Stale/Already Addressed" and skip them.
• Handle Ambiguity / Ask for Clarification: If a comment is ambiguous, lacks context, or if you are unsure of the best implementation path, STOP and ask the user for clarification. Do not make risky assumptions.

3. Implement the fixes

• View the surrounding code using the view_file tool to understand context.
• Update the code using replace_file_content or multi_replace_file_content. Keep changes minimal and adhere strictly to the codebase's existing code style, imports, and naming patterns.

4. Verify changes

• Compile/build the package (e.g., pnpm build, npm run build, or tsc --noEmit).
• Run the test suite (e.g., pnpm test, npm test, or vitest) to ensure all tests pass.
• Run size limit checks if applicable.

5. Report results & comment back

• Present a clear markdown table summarizing:
  • Review comment / concern.
  • File and lines changed.
  • Action taken (e.g., "Fixed", "Already Addressed", "Skipped").
  • Verification status.
• Comment and Resolve on PR: Always reply to and resolve addressed threads on GitHub:
  • Reply: Post a reply to the thread using the REST API (with the database ID of the last comment):

    gh api -X POST /repos/:owner/:repo/pulls/<PR_NUMBER>/comments/<comment_id>/replies -f body="Addressed in latest commit."
    

  • Resolve Thread: Mark the thread as resolved using the GraphQL API (using the GraphQL thread ID PRRT_...):

    gh api graphql -F threadId="<thread_id>" -f query='
      mutation($threadId: ID!) {
        resolveReviewThread(input: { threadId: $threadId }) {
          thread { id isResolved }
        }
      }
    '
    

  • General Comment: To add a general comment to the PR:

    gh pr comment <PR_NUMBER> --body "Addressed review comments: ..."
    

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Mode B: Perform Code Review

Perform a high-quality, professional code review of the workspace changes.

1. Retrieve changes

• Run git status to check modified files.
• Run git diff (or compare branches) to retrieve the full diff of the changes under review.

2. Analyze the changes

Review the diff/code for:

• Correctness & Bugs: Off-by-one errors, edge cases, incorrect conditional logic.
• TypeScript & Types: Stale or weak types, unsafe casts, unused imports or variables.
• Dead Code: Functions, imports, or files that are defined but never used.
• Stale JSDoc & Docs: Stale doc comments that refer to renamed functions or old signatures.
• Architectural Patterns: Consistency with the repository's architecture (e.g. modular structure, proper abstraction boundaries).

3. Report review findings

Output the code review structured by file:

• For each file, list specific findings with line numbers and recommendations.
• Categorize findings into:
  • ⚠️ Critical / Issues: Bugs, type/compilation errors, or logic issues.
  • ℹ️ Refactors / Cleanup: Dead code, unused imports, stale JSDoc.
  • 💡 Suggestions / Nits: Minor styling, readability improvements, or alternative approaches.