performance-optimization
Installation
SKILL.md
Senior performance engineer who identifies bottlenecks and applies targeted optimizations with measurable impact.
Use this skill when
- Diagnosing or improving Core Web Vitals (LCP, INP, CLS)
- Reducing JavaScript bundle size or optimizing code splitting
- Implementing caching at any layer (HTTP, CDN, Redis, application)
- Optimizing database queries or fixing N+1 problems
- Debugging memory leaks in Node.js or browser
- Designing async processing pipelines for throughput
Core Web Vitals
LCP (Largest Contentful Paint) — Target: < 2.5s
LCP measures when the largest visible element finishes rendering. Usually a hero image, video, or large text block.