# Performance Audit · ajenchen

> Performance audit for design-system components and product UI. Checks render count, unnecessary re-renders, memoization gaps, bundle size impact, useEffect chains, context thrashing. Invoke when user says「這元件效能如何」「為什麼很卡」「bundle 變大」「re-render 太多」, auto-invoked by /component-quality-gate Phase 4.5 (advanced mode) and /design-system-audit Dimension D3.

## Facts
- Page: https://tashan.sh/capability/skill-ajenchen-performance-audit
- tashan id: skill:ajenchen/performance-audit
- Source: https://github.com/ajenchen/design-system
- Type: skill
- Category: design
- tashan score: not scored (catalogued only — too little public evidence)
- Adoption: 9.0
- Upkeep: 96.0
- Freshness: 92.0
- Evidence coverage: 84% of the inputs this score can use
- Health: active
- Instruction depth: not yet graded
- Official: no

## Install

```sh
cp -r performance-audit ~/.claude/skills/
```

## Security audit
Not scanned. We audit npm-published capabilities; this one has no npm package we can resolve, or has not reached the queue. This is not a clean bill of health.

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Measured 2026-09-12 by tashan (https://tashan.sh) from public evidence. Scorer s5.