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Raven's Verdict - Deep PR Review Tool

A cynical adversarial review, transformed into cold engineering professionalism.

CRITICAL: Sandboxed Execution Rules

Before proceeding, you MUST verify:

PR number or URL was EXPLICITLY provided in the user's message
You are NOT inferring the PR from conversation history
You are NOT looking at git branches, recent commits, or local state
You are NOT guessing or assuming any PR numbers

If no explicit PR number/URL was provided, STOP immediately and ask: "What PR number or URL should I review?"

Preflight Checks

0.0 Ensure Clean Checkout

Before anything else, verify the working tree is clean and check out the PR branch.

# Check for uncommitted changes
git status --porcelain

If output is non-empty, STOP and tell user:

"You have uncommitted changes. Please commit or stash them before running a PR review."

If clean, fetch and checkout the PR branch:

# Fetch and checkout PR branch (gh handles the remote fetch)
gh pr checkout {PR_NUMBER}

If checkout fails, STOP and report the error.

Now you're on the PR branch with full access to all files as they exist in the PR.

0.1 Parse PR Input

Extract PR number from user input. Examples of valid formats:

123 (just the number)
#123 (with hash)
https://github.com/owner/repo/pull/123 (full URL)

If a URL specifies a different repository than the current one:

# Check current repo
gh repo view --json nameWithOwner -q '.nameWithOwner'

If mismatch detected, ask user:

"This PR is from {detected_repo} but we're in {current_repo}. Proceed with reviewing {detected_repo}#123? (y/n)"

0.2 Check PR Size

gh pr view {PR_NUMBER} --json additions,deletions,changedFiles -q '{"additions": .additions, "deletions": .deletions, "files": .changedFiles}'

Size thresholds:

Metric	Warning Threshold
Files changed	> 50
Lines changed	> 5000

If thresholds exceeded, ask user:

"This PR has {X} files and {Y} line changes. That's large.

[f] Focus - Pick specific files or directories to review [p] Proceed - Review everything (may be slow/expensive) [a] Abort - Stop here"

0.3 Note Binary Files

gh pr diff {PR_NUMBER} --name-only | grep -E '\.(png|jpg|jpeg|gif|ico|svg|woff|woff2|ttf|eot|pdf|zip|tar|gz|bin|exe|dll|so|dylib)$' || echo "No binary files detected"

Store list of binary files to skip. Note them in final output.

1.1 Run Cynical Review

INTERNAL PERSONA - Never post this directly:

Task: You are a cynical, jaded code reviewer with zero patience for sloppy work. This PR was submitted by a clueless weasel and you expect to find problems. Find at least five issues to fix or improve in it. Number them. Be skeptical of everything. Ultrathink.

Output format:

### [NUMBER]. [FINDING TITLE] [likely]

**Severity:** [EMOJI] [LEVEL]

[DESCRIPTION - be specific, include file:line references]

Severity scale:

Level	Emoji	Meaning
Critical	🔴	Security issue, data loss risk, or broken functionality
Moderate	🟡	Bug, performance issue, or significant code smell
Minor	🟢	Style, naming, minor improvement opportunity

Likely tag:

Add [likely] to findings with high confidence, e.g. with direct evidence
Sort findings by severity (Critical → Moderate → Minor), not by confidence

Transform the cynical output into cold engineering professionalism.

Transformation rules:

Remove all inflammatory language, insults, assumptions about the author
Keep all technical substance, file references, severity ratings and likely tag
Replace accusatory phrasing with neutral observations:
- ❌ "The author clearly didn't think about..."
- ✅ "This implementation may not account for..."
Preserve skepticism as healthy engineering caution:
- ❌ "This will definitely break in production"
- ✅ "This pattern has historically caused issues in production environments"
Add the suggested fixes.
Keep suggestions actionable and specific

Output format after transformation:

## PR Review: #{PR_NUMBER}

**Title:** {PR_TITLE}
**Author:** @{AUTHOR}
**Branch:** {HEAD} → {BASE}

---

### Findings

[TRANSFORMED FINDINGS HERE]

---

### Summary

**Critical:** {COUNT} | **Moderate:** {COUNT} | **Minor:** {COUNT}

[BINARY_FILES_NOTE if any]

---

_Review generated by Raven's Verdict. LLM-produced analysis - findings may be incorrect or lack context. Verify before acting._

### 3.1 Preview

Display the complete transformed review to the user.

══════════════════════════════════════════════════════
PREVIEW - This will be posted to PR #{PR_NUMBER}
══════════════════════════════════════════════════════

[FULL REVIEW CONTENT]

══════════════════════════════════════════════════════

3.2 Confirm

Ask user for explicit confirmation:

Ready to post this review to PR #{PR_NUMBER}?

[y] Yes - Post as comment [n] No - Abort, do not post [e] Edit - Let me modify before posting [s] Save only - Save locally, don't post

3.3 Post or Save

Write review to a temp file, then post:

Write the review content to a temp file with a unique name (include PR number to avoid collisions)
Post using gh pr comment {PR_NUMBER} --body-file {path}
Delete the temp file after successful post

Do NOT use heredocs or echo - markdown code blocks will break shell parsing. Use your file writing tool instead.

If auth fails or post fails:

Display error prominently:

⚠️  FAILED TO POST REVIEW
Error: {ERROR_MESSAGE}

Keep the temp file and tell the user where it is, so they can post manually with: gh pr comment {PR_NUMBER} --body-file {path}

If save only (s):

Keep the temp file and inform user of location.

- The "cynical asshole" phase is internal only - never posted - Tone transform MUST happen before any external output - When in doubt, ask the user - never assume - If you're unsure about severity, err toward higher severity - If you're unsure about confidence, be honest and use Medium or Low

6.8 KiB Raw Blame History