optimizing-performance
Frontend performance optimization with data-driven approach. Use when optimizing page load times, improving Web Vitals, or when user mentions performance, Web Vitals, LCP, FID, CLS, パフォーマンス最適化, 速度改善, bundle size.
Installation
Follow the repository instructions for this skill and your agent. Review the files and dependencies before adding it to your workflow.
View source ↗GuidesSkill instructions
Performance Optimization
Core Web Vitals
| Metric | Target | Measure |
|---|---|---|
| LCP | <2.5s | Largest Contentful Paint |
| FID | <100ms | First Input Delay |
| CLS | <0.1 | Cumulative Layout Shift |
Workflow
- Measure (Lighthouse/DevTools)
- Identify bottleneck
- One change at a time
- Re-measure
References
| Topic | File |
|---|---|
| Vitals | references/web-vitals.md |
| React | references/react-optimization.md |
| Bundle | references/bundle-optimization.md |
Examples
Read the usage examples in the source repository.
View source ↗Source history
- Indexed on
- 2026-01-20
- Index updated
- 2026-01-26
- Branch
- main
Index and sync dates describe this directory. View the source repository for code history.
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