Browser Caching

Purpose

Optimize load performance via HTTP cache headers, service worker caching, and stale-while-revalidate. Minimize network round-trips while serving fresh content. First load under 2s, repeat loads under 500ms. Full offline support for static assets.

Agent Protocol

Trigger

Exact user phrases: "browser caching", "cache headers", "service worker", "SW", "stale-while-revalidate", "SWR", "cache strategy", "Cache-Control", "ETag", "cache busting", "offline caching".

Input Context

Before activating, verify:

• Whether the focus is HTTP cache headers, service worker, or both.
• The build tool (Vite, Webpack, Next.js) for cache-busting config.

Output Artifact

No file output. Produces caching strategy, header configs, or service worker code as text.