coderabbit

name	coderabbit
description	Triage CodeRabbit review comments on a PR — vet, apply valid fixes, reply
argument-hint	[PR number | PR URL | owner/repo#number] [--batch]
user-invocable	true

CodeRabbit Triage

You are triaging CodeRabbit automated review comments on a GitHub PR. Your job is to be a skeptical, experienced engineer who categorizes each finding, generates fixes for valid ones, and lets the user confirm before anything is applied or replied to.

Philosophy

Most CodeRabbit findings are noise. Apply the same skepticism as vet-review: surface only things that actually matter. For each finding, ask:

• Would a senior engineer on this team flag this in a real review?
• Is this a genuine bug, correctness issue, or missing import — or a style nit?
• Does this suggestion survive contact with how the code is actually used?
• Am I keeping this because it concretely prevents a problem, or because it's theoretically better?

CodeRabbit's suggestion blocks are often mechanically correct but sometimes miss context. Its walkthrough/summary comments are mostly noise, but occasionally contain substantive findings that don't appear as inline comments — these should be surfaced and vetted.

Kill the noise. If a finding doesn't survive this filter, drop it.

Workflow

1. Parse arguments and resolve PR

Parse $ARGUMENTS to extract the PR identifier:

1. PR URL (e.g., https://github.com/owner/repo/pull/123): Extract owner, repo, and number from the URL path.

2. owner/repo#number: Parse directly.

3. Bare number (e.g., 123, #123): Determine owner/repo from the current working directory:

   gh repo view --json owner,name --jq '"\(.owner.login)/\(.name)"'
   

4. No arguments: Detect the PR from the current branch:

   gh pr view --json number,url
   

Store OWNER, REPO, and PR_NUMBER for subsequent steps.

Check whether $ARGUMENTS contains --batch. If present, set BATCH_MODE = true and remove --batch from the argument string before parsing the PR identifier. When BATCH_MODE is false (the default), the full interactive workflow applies.

2. Fetch CodeRabbit comments

2a. Summary comment (read for context; extract actionable findings):

gh api "repos/{OWNER}/{REPO}/issues/{PR_NUMBER}/comments" \
  --paginate --jq '[.[] | select(.user.login == "coderabbitai[bot]")]'

Read the walkthrough and summary for background understanding.

Then parse for actionable findings. CodeRabbit sometimes posts substantive findings only in the summary — cross-cutting issues, missing artifacts, or whole-PR concerns that don't map to a single diff line. These appear as bulleted or numbered items under headings like "Actionable comments", "Additional comments", or similar sections. Extract each discrete finding that:

• Identifies a concrete bug, missing piece, or correctness issue
• Is not just a walkthrough description of what the PR does
• Is not a duplicate of an inline comment

Tag each extracted finding with SOURCE: summary. These findings will not have a COMMENT_ID, path, or line — record the ISSUE_COMMENT_ID (the id of the issue comment they came from) for use in the reply step.

Most summary content is walkthrough noise — apply the same skepticism as inline findings. Only surface items that would survive the vet filter in Step 4.

2b. Review body (nitpicks and other non-inline findings):

gh api "repos/{OWNER}/{REPO}/pulls/{PR_NUMBER}/reviews" \
  --paginate --jq '[.[] | select(.user.login == "coderabbitai[bot]")] | .[].body'

CodeRabbit nests nitpick findings inside the review body rather than posting them as standalone inline comments. These appear in <details> blocks under headings like 🧹 Nitpick comments (N). Each nitpick typically includes a file path, line number, description, and sometimes a proposed diff.

Parse the review body for discrete findings:

• Look for <summary>🧹 Nitpick comments sections
• Extract each finding with its file path and line reference
• Ignore meta-sections: "Prompt for AI Agents", "Autofix", "Review info" — these are not findings
• Skip any finding that duplicates an inline comment (Step 2c)

Tag each extracted finding with SOURCE: review-body. These findings have file/line context (unlike summary findings) but no individual COMMENT_ID for inline replies.

2c. Inline review comments (primary line-level actionable items):

gh api "repos/{OWNER}/{REPO}/pulls/{PR_NUMBER}/comments" \
  --paginate --jq '[.[] | select(.user.login == "coderabbitai[bot]")]'

Each comment contains: id, path, line, original_line, body, diff_hunk, in_reply_to_id, commit_id.

2d. Duplicate prevention: For each CodeRabbit comment, check whether a non-bot reply already exists (a comment whose in_reply_to_id matches this comment's id). Skip comments that have already been addressed.

Edge cases:

• No findings from any source (inline, review-body, summary) → report "No CodeRabbit comments found on PR #{PR_NUMBER}." and stop.
• No inline comments BUT review-body or summary findings exist → continue with those findings. Report: "No CodeRabbit inline comments found. Triaging N finding(s) from review body/summary."
• All inline comments already have replies AND no other findings → report "All CodeRabbit comments on PR #{PR_NUMBER} have already been addressed." and stop.
• All inline comments already have replies BUT review-body or summary findings exist → continue with those findings.

3. Fetch PR diff

gh pr diff {PR_NUMBER} --repo {OWNER}/{REPO}

4. Read context and vet each finding

For each unaddressed inline CodeRabbit comment:

1. Read the full file at path using the Read tool. You need the surrounding code, not just the diff hunk.

For each review-body-sourced finding (SOURCE: review-body):

1. Read the full file at the referenced path. These findings include file/line context, so treat them like inline findings for vetting purposes.

For each summary-sourced finding (SOURCE: summary):

1. Identify affected files from the finding's description and the PR diff. Read the relevant files for context. If the finding is about a missing artifact (e.g., missing docs, missing tests), verify it is actually missing.

2. Parse the comment body:

   • Extract ```suggestion code blocks if present — these are CodeRabbit's explicit replacement text.
   • If no suggestion block, the comment is prose advice.

3. Vet the finding:

   • "Is this real, or is CodeRabbit pattern-matching on a heuristic?"
   • Check the surrounding code — does the invariant CodeRabbit is worried about actually hold?
   • Would ignoring this cause a real-world failure?

4. Categorize into exactly one bucket:

   • AUTO-APPLY — Unequivocally correct. Very high threshold. Only for:

     • Typo fixes in strings, comments, or identifiers
     • Missing imports that would cause a compile/runtime error
     • Obvious nil/null checks where the code would crash without them
     • Trivial syntax fixes
     • CodeRabbit's suggestion block is a direct, minimal change with zero behavioral ambiguity

   • REVIEW — Valid finding, but involves any of:

     • Logic or behavioral changes
     • Error handling additions where the case is arguably reachable
     • Architectural or design choices
     • Any ambiguity about whether the fix is correct

   • DROPPED — Noise:

     • Style nits (naming, formatting, import ordering)
     • "Consider refactoring" suggestions
     • "Add tests for..." without a specific untested edge case
     • Error handling for cases that cannot be reached
     • Documentation improvements
     • Performance micro-optimizations without measurable impact

5. Generate the fix for AUTO-APPLY and REVIEW items:

   • If CodeRabbit provided a suggestion block: use that exact replacement text.
   • If CodeRabbit gave prose advice: generate the minimal fix based on reading the full file context. Show the fix as a diff.
   • If a suggestion block conflicts with the current code state (line numbers don't match, code has changed since CodeRabbit reviewed): recategorize to REVIEW regardless of original category.

4b. Batch Mode Output (skip to here when BATCH_MODE = true)

When BATCH_MODE is true, skip Steps 5 through 9 entirely. Instead, output a single JSON object containing all findings:

{
  "findings": [
    {
      "comment_id": "<number|null>",
      "category": "auto_apply|review|dropped",
      "source": "inline|review-body|summary",
      "file": "<string|null>",
      "line": "<number|null>",
      "description": "<string>",
      "fix_diff": "<string|null>",
      "reason": "<string>"
    }
  ]
}

Field definitions:

• comment_id: The GitHub comment id for inline-sourced findings. null for review-body and summary-sourced findings (these have no individual comment ID).
• category: The triage bucket from Step 4: auto_apply, review, or dropped.
• source: Where the finding came from: inline, review-body, or summary.
• file: The file path. null for summary findings that are not file-specific.
• line: The line number. null for summary findings.
• description: One-line description of the finding.
• fix_diff: The proposed fix as a unified diff string. null for dropped findings or findings where no fix was generated.
• reason: Why this category was assigned. For dropped findings, the reason it was dropped. For auto_apply/review, why it was kept.

Rules for batch output:

• Output ONLY the JSON object. No markdown, no commentary, no table.
• Do NOT apply any changes to the codebase.
• Do NOT reply to any GitHub comments.
• Do NOT prompt the user for confirmation.
• The vetting in Steps 1–4 is identical to interactive mode. Only the output format changes.
• If there are no findings at all, output {"findings": []}.

5. Present the table

(Interactive mode only — skip when BATCH_MODE = true.)

Present ALL findings in a single structured output. Do NOT present findings one-by-one. The user needs to see the full picture before confirming any actions.

Format:

## CodeRabbit Triage — PR #{PR_NUMBER}

**PR**: {title}
**CodeRabbit comments**: N inline (M unaddressed), J review-body, K summary

### Overview

| # | Category | Source | File | Line | Finding |
|---|----------|--------|------|------|---------|
| 1 | AUTO-APPLY | inline | path/file.go | 42 | Missing nil check on foo |
| 2 | REVIEW | inline | pkg/api.go | 15 | Error not propagated from bar() |
| 3 | REVIEW | review-body | cmd/main.go | 88 | Parenthetical contradicts new behavior |
| 4 | REVIEW | summary | — | — | No migration docs for schema change |
| 5 | DROPPED | inline | utils/helper.go | 33 | "Consider extracting to helper" |

---

### Auto-Apply (N)

**1. path/file.go:42 — Missing nil check**
CodeRabbit: `brief quote`
--- a/path/file.go
+++ b/path/file.go
- original code
+ fixed code

### Needs Review (N)

**2. pkg/api.go:15 — Error not propagated**
CodeRabbit: `brief quote`
Assessment: `why this is valid but needs human judgment`
--- a/pkg/api.go
+++ b/pkg/api.go
- original code
+ fixed code

**3. cmd/main.go:88 — Parenthetical contradicts new behavior** (review-body)
CodeRabbit: `brief quote from nitpick`
Assessment: `why this is a genuine inconsistency`
--- a/cmd/main.go
+++ b/cmd/main.go
- old wording
+ fixed wording

**4. (summary) No migration docs for schema change**
CodeRabbit: `brief quote from summary`
Assessment: `why this is valid`
Affected files: db/migrations/0042_add_column.sql

### Dropped (N)

| # | Finding | Reason |
|---|---------|--------|
| 5 | "Consider extracting to helper" | Refactoring advice — not a bug |

---

Actions:

- Confirm auto-apply items? (or reject by number)
- Accept or reject review items? (by number)
- Override dropped items? (by number)

6. User confirmation

(Interactive mode only — skip when BATCH_MODE = true.)

Wait for the user's response. Parse it to build the final action list. Accept flexible input:

• "confirm all" — apply all auto-apply items, skip review items
• "confirm all, accept 2" — apply auto-apply + item 2
• "reject 1, accept 2" — reject auto-apply item 1, accept item 2
• "override 3" — un-drop item 3 and apply it
• Numbers always reference the overview table

If the response is ambiguous, ask for clarification.

Hard rule: do NOT apply anything until the user has reviewed the full table and confirmed.

7. Apply changes

(Interactive mode only — skip when BATCH_MODE = true.)

For all confirmed items:

1. Apply edits to the codebase using the Edit tool. Within each file, apply changes from bottom to top (highest line number first) to avoid line number drift.

2. Create a single commit with a message like:

   Apply CodeRabbit suggestions from PR #{PR_NUMBER}
   
   Auto-applied:
   - {file}:{line}: {brief description}
   
   Accepted after review:
   - {file}:{line}: {brief description}
   
   Co-Authored-By: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>
   

3. Record the commit SHA for use in PR replies.

8. Reply to CodeRabbit comments

(Interactive mode only — skip when BATCH_MODE = true.)

For inline-sourced findings, post an inline reply:

Applied items:

gh api "repos/{OWNER}/{REPO}/pulls/{PR_NUMBER}/comments/{COMMENT_ID}/replies" \
  -f body="Applied — fixed in {SHA_SHORT}."

Declined items (review items the user rejected):

gh api "repos/{OWNER}/{REPO}/pulls/{PR_NUMBER}/comments/{COMMENT_ID}/replies" \
  -f body="Won't fix — {one-line reason}."

Dropped items:

gh api "repos/{OWNER}/{REPO}/pulls/{PR_NUMBER}/comments/{COMMENT_ID}/replies" \
  -f body="Won't fix — {one-line reason}."

For review-body and summary-sourced findings, post a top-level issue comment (since there is no inline comment to reply to):

gh api "repos/{OWNER}/{REPO}/issues/{PR_NUMBER}/comments" \
  -f body="Re: CodeRabbit summary finding — {brief description}

{Applied — fixed in {SHA_SHORT}. | Won't fix — {one-line reason}.}"

If multiple review-body/summary findings were actioned, batch them into a single issue comment to avoid noise:

gh api "repos/{OWNER}/{REPO}/issues/{PR_NUMBER}/comments" \
  -f body="Addressed CodeRabbit summary findings:

- {finding 1}: Applied — fixed in {SHA_SHORT}.
- {finding 2}: Won't fix — {one-line reason}."

Verification gate — do not proceed to Step 9 until this passes:

Count the replies you just posted (inline + issue comments). The total must equal the number of unaddressed findings from the overview table (all categories: applied, declined, dropped). If the count doesn't match, identify the missing findings and post the remaining replies.

Checklist:

• Every applied inline finding has a reply
• Every declined inline finding has a reply
• Every dropped inline finding has a reply
• All review-body/summary findings (applied, declined, OR dropped) are covered by an issue comment

9. Final summary

(Interactive mode only — skip when BATCH_MODE = true.)

## Done

**Commit**: {SHA_SHORT} ({N} files changed)
**PR replies posted**: {M} (applied: X, declined: Y, dropped: Z)

Changes are local. Push when ready.

Anti-patterns

• Rubber-stamping — Challenge every finding. CodeRabbit's confidence is not your confidence.
• Applying before confirmation — The table comes first. Always.
• Treating summary walkthrough as findings — Walkthrough descriptions of what the PR does are context, not findings. Only extract discrete actionable items (bugs, missing pieces, correctness issues) from the summary.
• Re-processing replied comments — If someone already addressed it, skip it.
• Generating new findings — You are triaging CodeRabbit's output, not reviewing the PR yourself. If you spot something critical that CodeRabbit missed, you may flag it but label it clearly as "Not from CodeRabbit".
• Style nits — Not your job here.
• Suggesting error handling for impossible cases — Trust internal code paths.
• "Consider refactoring" — The user didn't ask for architecture advice.
• Pushing to remote — The user decides when to push.

Edge cases

Scenario	Action
No findings from any source	Report and stop
No inline comments but review-body/summary findings exist	Triage non-inline findings only
All inline comments replied to, no other findings	Report and stop
All inline comments replied to, review-body/summary findings exist	Triage non-inline findings only
Suggestion block conflicts with current code	Recategorize to REVIEW
Comment on a deleted file	Skip with note
Review-body/summary finding duplicates an inline comment	Use inline version, skip duplicate
All items dropped	Report: "None survive scrutiny as real issues"
User wants to re-process replied comments	Allow if explicitly requested