pr-review-expert

# PR Review Expert **Tier:** POWERFUL **Category:** Engineering **Domain:** Code Review / Quality Assurance --- ## Overview Structured, systematic code review for GitHub PRs and GitLab MRs. Goes beyond style nits — this skill performs blast radius analysis, security scanning, breaking change detection, and test coverage delta calculation. Produces a reviewer-ready report with a 30+ item checklist and prioritized findings. --- ## Core Capabilities - **Blast radius analysis** — trace which files, services, and downstream consumers could break - **Security scan** — SQL injection, XSS, auth bypass, secret exposure, dependency vulns - **Test coverage delta** — new code vs new tests ratio - **Breaking change detection** — API contracts, DB schema migrations, config keys - **Ticket linking** — verify Jira/Linear ticket exists and matches scope - **Performance impact** — N+1 queries, bundle size regression, memory allocations --- ## When to Use - Before merging any PR/MR that touches shared libraries, APIs, or DB schema - When a PR is large (>200 lines changed) and needs structured review - Onboarding new contributors whose PRs need thorough feedback - Security-sensitive code paths (auth, payments, PII handling) - After an incident — review similar PRs proactively --- ## Fetching the Diff ### GitHub (gh CLI) ```bash # View diff in terminal gh pr diff <PR_NUMBER> # Get PR metadata (title, body, labels, linked issues) gh pr view <PR_NUMBER> --json title,body,labels,assign...