VTEX IO application performance When this skill applies Use this skill when you optimize VTEX IO backends (typically Node with / Koa-style middleware, or .NET services) for performance and resilience : caching , deduplicating work, parallel I/O , and efficient configuration loading—not only “add a cache.” - Adding an in-memory LRU (per pod) for hot keys - Adding VBase persistence for shared cache across pods, optionally with stale-while-revalidate (return stale, refresh in background) - Loading AppSettings (or similar) once at startup or on a TTL refresh vs every request - Parallelizing indep…