Smart Cache

This skill is internally coherent and low-risk: it’s an instruction-only skill containing example JavaScript for an in-memory cache and does not request credentials or perform network operations. Before using it in production, note that SKILL.md is only example code (there are no shipped code files or install steps) — you or your environment would need to actually include/execute the code. Review the implementation for scalability and correctness (updateAccessOrder uses array.filter which is O(n) per access and may not scale for large caches; calculateHitRate is a simplistic heuristic, TTL handling is in-memory only and not durable across restarts). If you need a production-ready cache, consider using a well-maintained library (e.g., lru-cache or a managed cache) rather than copying this snippet. Otherwise, it is reasonable to install/invoke for local testing or as a reference.