Implement intelligent API response caching with Redis, Memcached, and CDN integration. Use when optimizing API performance with caching. Trigger with phrases like "add caching", "optimize API performance", or "implement cache layer".
npxskills add jeremylongshore/claude-code-plugins-plus-skills--skill managing-api-cacheLoading…
Implement intelligent API response caching using Redis, Memcached, or in-memory stores with cache key generation, TTL management, cache invalidation strategies, and HTTP cache headers. Support read-through, write-through, and cache-aside patterns with tag-based invalidation for related resources and stale-while-revalidate behavior.
ioredis (Node.js), redis-py (Python), or Lettuce (Java)X-Cache: HIT header, or executing the handler, caching the result, and returning with X-Cache: MISS.Cache-Control, ETag, and Last-Modified response headers for HTTP-level caching, enabling CDN and browser cache participation.See ${CLAUDE_SKILL_DIR}/references/implementation.md for the full implementation guide.
${CLAUDE_SKILL_DIR}/src/middleware/cache.js - Cache-aside middleware with hit/miss tracking${CLAUDE_SKILL_DIR}/src/cache/key-generator.js - Deterministic cache key generation${CLAUDE_SKILL_DIR}/src/cache/invalidator.js - Tag-based cache invalidation on mutations${CLAUDE_SKILL_DIR}/src/cache/store.js - Redis/Memcached cache store abstraction${CLAUDE_SKILL_DIR}/src/config/cache-policies.js - Per-endpoint TTL and caching policy configuration${CLAUDE_SKILL_DIR}/tests/cache/ - Cache behavior verification tests| Error | Cause | Solution |
|---|---|---|
| Cache stampede | TTL expires simultaneously for popular key; many requests hit database | Use lock-based revalidation (only one request refreshes); apply jittered TTLs |
| Stale data served | Cache invalidation missed a related resource after mutation | Implement tag-based invalidation covering all affected cache keys; add invalidation audit logging |
| Redis connection failure | Cache store unavailable due to network or server issue | Fall through to database with degraded performance; log cache bypass; alert on sustained failures |
| Cache key collision | Different requests generating identical cache keys | Include all varying parameters in key; hash the full normalized request for uniqueness |
| Memory pressure | Cache grows unbounded consuming all available Redis memory | Configure Redis maxmemory-policy to allkeys-lru; set per-key size limits; monitor memory usage |
Refer to ${CLAUDE_SKILL_DIR}/references/errors.md for comprehensive error patterns.
Product catalog caching: Cache GET /products list for 5 minutes and GET /products/:id for 1 hour, invalidating both when any product is created, updated, or deleted via tag products.
User-specific dashboard: Cache dashboard data per user using cache:dashboard:{userId} keys with 30-second TTL, serving stale data during revalidation to keep perceived response time under 50ms.
CDN edge caching: Set Cache-Control: public, max-age=300, stale-while-revalidate=60 on public endpoints, enabling CloudFront to serve cached responses at the edge while revalidating asynchronously.
See ${CLAUDE_SKILL_DIR}/references/examples.md for additional examples.
Create or update AgentSkills. Use when designing, structuring, or packaging skills with scripts, references, and assets.
Transcribe audio via OpenAI Audio Transcriptions API (Whisper).
Create or update AgentSkills. Use when designing, structuring, or packaging skills with scripts, references, and assets.
Set up and use 1Password CLI (op). Use when installing the CLI, enabling desktop app integration, signing in (single or multi-account), or reading/injecting/running secrets via op.
Create or update AgentSkills. Use when designing, structuring, or packaging skills with scripts, references, and assets.
Transcribe audio via OpenAI Audio Transcriptions API (Whisper).
Create or update AgentSkills. Use when designing, structuring, or packaging skills with scripts, references, and assets.
Set up and use 1Password CLI (op). Use when installing the CLI, enabling desktop app integration, signing in (single or multi-account), or reading/injecting/running secrets via op.