Caching Strategy Toolkit

Every app needs caching. Most get it wrong. This toolkit gives your agent a complete decision framework for choosing the right cache layer (browser, CDN, application, database), selecting invalidation patterns that actually work, and generating production-ready code.

Includes: cache-aside with stampede protection, write-through, write-behind, stale-while-revalidate, LRU in-memory cache (zero deps), multi-layer L1/L2 architecture, HTTP Cache-Control presets, Redis implementations for Node.js and Python, cache key design patterns, hit rate monitoring, and a pitfalls guide covering thundering herd, cache poisoning, and memory leaks.

Not a tutorial — a working toolkit. Every code block is copy-paste ready for production.