Does this skill provide offline support?

Yes, it includes patterns for precaching essential assets and an offline.html page, ensuring the application remains functional even without an active internet connection.

What caching strategies does this skill support?

It provides implementation patterns for Cache-first (static assets), Network-first (HTML/data), Stale-while-revalidate (API feeds), and Cache-only/Network-only strategies.

How does it handle Service Worker updates?

The skill emphasizes user-controlled updates, detecting waiting workers and providing mechanisms for users to manually trigger the update to prevent unexpected mid-session changes.

Why is response cloning necessary in these patterns?

Service Worker response bodies can only be consumed once. This skill ensures you clone the response so it can be simultaneously saved to the cache and returned to the browser.

Web PWA Service Workers

Name: Web PWA Service Workers
Author: agents-inc

byagents-inc

0•

Mobile Development

Implements robust Service Worker patterns for offline-capable Progressive Web Apps with sophisticated caching strategies.

This skill provides comprehensive patterns and best practices for implementing Service Workers in Progressive Web Apps (PWAs). It guides developers through the entire Service Worker lifecycle—from registration and installation to activation and request interception—ensuring reliable offline functionality and optimized loading speeds. By enforcing critical requirements like response cloning, cache versioning, and user-controlled updates, it helps build resilient web applications that handle network failures gracefully while maintaining high performance through strategic caching.

主な機能

01Navigation preload and request routing optimizations

02Implementation of advanced caching strategies like Stale-while-revalidate and Network-first

03Standardized Service Worker lifecycle management (Install, Activate, Fetch)

040 GitHub stars

05User-controlled update detection and 'skip waiting' mechanisms

06Automated offline fallback page and asset precaching patterns

ユースケース

01Optimizing web performance and reducing server load via intelligent runtime caching

02Creating custom offline fallback experiences for complex web applications

03Building offline-first Progressive Web Apps (PWAs) with reliable asset delivery

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add agents-inc/skills web-pwa-service-workers

For use in Claude.ai and ChatGPT

Download Skill