performance-review

name	performance-review
description	Performance review for expensive loops, N+1 calls, memory pressure, latency, caching, and unnecessary IO.
license	MIT

Purpose

Performance review for expensive loops, N+1 calls, memory pressure, latency, caching, and unnecessary IO.

Review focus

• N+1 calls
• unbounded loop
• large allocation
• sync blocking
• cache misuse
• repeated serialization

Method

1. Inspect changed files and diff hunks relevant to this skill.
2. Use repository-native tools when available.
3. Prefer exact evidence from changed code.
4. Emit findings using the shared JSONL finding contract.
5. Avoid style-only comments unless they create maintainability or correctness risk.

Tooling hints

• Use grep or editor search before opening files.
• Use git, grep, and gh CLI. These are universally available and sufficient for all review tasks.
• Do not depend on tools beyond git, grep, cat, head, wc, and gh.