browser-extension

What problem does it solve?

This Skill provides a robust framework and strict guidelines for developing advanced, secure, and persistent browser extensions, specifically addressing common pitfalls like Service Worker termination and state management in Manifest V3.

Core Features & Use Cases

• Manifest V3 Compliance: Ensures all extensions adhere to the latest security and architecture standards.
• State Persistence: Implements strategies (Alarms, Offscreen API, chrome.storage, IndexedDB) to prevent data loss in ephemeral Service Workers.
• Security Best Practices: Enforces least privilege permissions, secure content script communication, and declarative network request rules.
• Use Case: Develop a browser extension that monitors website changes, saves user preferences persistently, and provides a seamless side panel interface, all while maintaining high security and reliability.

Quick Start

Use the browser-extension skill to create a Manifest V3 compliant extension with a persistent service worker that saves user preferences to chrome.storage.local.