caching-strategy Skill

Goal

This skill defines how to implement caching to improve performance without serving stale data.

Steps

1. Caching Patterns

Read Patterns

1. Cache-Aside (Lazy Loading) - Most Common

   • App checks Cache.
   • If hit: return.
   • If miss: fetch DB -> write to Cache -> return.
   • Pros: Resilient to cache failure. Cons: First request is slow.

2. Read-Through

   • App asks Cache. Cache itself fetches from DB if missing.
   • Pros: App logic simple. Cons: Requires specific library/provider support.