Pwa Development

This one gives Claude the patterns you need for building offline-first web apps, from service worker registration to caching strategies. You get concrete implementations for cache-first, network-first, and stale-while-revalidate approaches, plus working examples of background sync and push notifications. It covers the web app manifest setup, offline detection handlers, and the app shell architecture. The caching strategies section is especially useful since it shows you exactly when to use each pattern. If you're building something that needs to work when the network drops or you want that installable app experience, this gives you the core patterns without having to piece together MDN docs.