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From f5-core
Provides performance optimization strategies for caching with Redis, database queries, API pagination and compression, frontend bundle splitting and Core Web Vitals, plus scaling techniques. Targets TTFB, LCP, FID metrics.
How this skill is triggered — by the user, by Claude, or both
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/f5-core:performanceThis skill is limited to the following tools:
The summary Claude sees in its skill listing — used to decide when to auto-load this skill
Performance optimization knowledge for building fast, scalable applications
api/async-processing.mdapi/batch-operations.mdapi/pagination.mdapi/response-compression.mdcaching/cache-invalidation.mdcaching/caching-strategies.mdcaching/cdn-caching.mdcaching/http-caching.mdcaching/redis-caching.mddatabase/connection-pooling.mddatabase/indexing-strategies.mddatabase/n-plus-one.mddatabase/query-optimization.mdfrontend/bundle-optimization.mdfrontend/core-web-vitals.mdfrontend/image-optimization.mdfrontend/lazy-loading.mdfundamentals/benchmarking.mdfundamentals/bottleneck-analysis.mdfundamentals/performance-metrics.mdPerformance optimization knowledge for building fast, scalable applications that provide excellent user experience.
| Metric | Target | Description |
|---|---|---|
| TTFB | < 200ms | Time to First Byte |
| FCP | < 1.8s | First Contentful Paint |
| LCP | < 2.5s | Largest Contentful Paint |
| FID | < 100ms | First Input Delay |
| CLS | < 0.1 | Cumulative Layout Shift |
| API Response | < 200ms | P95 response time |
| Database Query | < 50ms | P95 query time |
| Memory Usage | < 80% | Application memory threshold |
╱╲
╱ ╲ CDN / Edge
╱────╲
╱ ╲ Application Cache
╱────────╲
╱ ╲ Database Optimization
╱────────────╲
╱ ╲ Code Optimization
╱________________╲ Infrastructure
| Operation Type | Target | Maximum |
|---|---|---|
| Static assets | < 50ms | 100ms |
| API read | < 100ms | 200ms |
| API write | < 200ms | 500ms |
| Search | < 200ms | 500ms |
| Report generation | < 2s | 5s |
| File upload | < 5s | 30s |
| Data Type | Cache Location | TTL |
|---|---|---|
| Static assets | CDN | 1 year |
| User session | Redis | 30 min |
| User profile | Redis | 1 hour |
| Product catalog | Redis + CDN | 6 hours |
| Search results | Redis | 5 min |
| Config | Memory | 24 hours |
Performance requirements should be defined in quality gates:
# .f5/quality/gates-status.yaml
gates:
G2:
performance:
api_p95_response: "< 200ms"
database_p95_query: "< 50ms"
memory_usage: "< 80%"
Performance requirements should be traceable:
// NFR-PERF-001: API response time must be under 200ms at P95
export async function getUser(id: string): Promise<User> {
// implementation
}
npx claudepluginhub fujigo-software/f5-framework-claude --plugin f5-coreGuides performance optimization via profiling (CPU, memory, I/O), caching (CDN/app/DB), connection pooling, lazy loading, code splitting, query tuning, and load balancing. Use when diagnosing issues, cutting latency, or scaling.
Guides performance measurement and optimization workflows using Core Web Vitals targets. Use when profiling reveals bottlenecks or when load time budgets exist.
Optimizes application performance with profiling-driven methodology. Covers CPU/memory profiling, caching strategies, query optimization, indexing, and load testing for faster apps.