perf

name	perf
description	Find and fix performance bottlenecks across frontend, backend, database, and test suites using evidence-first analysis.

Perf

Use this when apps feel slow, tests are too slow, APIs lag, pages over-render, or CI takes too long.

Workflow

1. Define the slow path and measurable baseline.
2. Identify where time is spent: network, rendering, compute, DB, bundle, startup, test setup.
3. Look for unnecessary work.
4. Recommend the highest ROI fixes first.
5. Re-measure after changes.

Common checks

• Repeated queries or N+1 calls.
• Large payloads or unnecessary serialization.
• Re-renders and unstable props.
• Missing memoization or caching.
• Slow test bootstrapping and expensive shared fixtures.
• Bundle size and unused client code.

Output format

• Baseline
• Bottlenecks
• Recommended fixes
• Expected impact
• Validation plan