Оптимизация производительности приложения

★ 8.7 · engineering

performance-optimization is a Claude Code skill that optimizes application performance across frontend, backend, queries, and databases using a structured measure-first workflow. It guides Claude through establishing a baseline with Lighthouse, Chrome DevTools, and real-user data via the web-vitals library, identifying the actual bottleneck, applying a targeted fix, verifying the result, and adding monitoring to guard against regressions. The skill includes Core Web Vitals reference thresholds (LCP ≤ 2.5s, INP ≤ 200ms, CLS ≤ 0.1), a symptom-to-cause diagnostic tree, and concrete fix patterns for N+1 queries, unbounded data fetching, and image optimization. It is intended for projects with load-time budgets, API response SLAs, or declining Web Vitals scores — any situation where guessing is costlier than profiling.