Does it support the Declarative Net Request API?

Yes, it includes templates and ruleset configurations for network request filtering using the declarativeNetRequest API.

How does it handle background tasks?

It provides implementation patterns for event-driven Service Workers, which replace the deprecated persistent background pages from Manifest V2.

Does this skill support Manifest V2?

No, this skill is specifically designed for the modern Manifest V3 standard, which is the required standard for Chrome extensions in 2025.

Can it help with Chrome Web Store submission?

Yes, it includes guidance on packaging, security policies (CSP), and meeting the official Developer Program Policies for successful publication.

Chrome Extension Developer

Name: Chrome Extension Developer
Author: Within-7

byWithin-7

Developer Tools

Builds and optimizes modern Chrome extensions using Manifest V3 standards, service workers, and 2025 best practices.

About

The Chrome Extension Developer skill empowers Claude to architect, develop, and troubleshoot browser extensions using Manifest V3 (MV3). It provides comprehensive guidance on implementing core components like service workers, content scripts, and popups while ensuring compliance with modern security policies and Chrome Web Store standards. Whether you are migrating a legacy V2 extension or building a new tool from scratch, this skill provides the structured templates, API references, and declarativeNetRequest patterns needed to create performant, secure, and production-ready browser enhancements.

Key Features

Implementation of event-driven service workers and background logic
0 GitHub stars
Dynamic content script injection and secure DOM manipulation
Detailed Manifest V2 to V3 migration patterns and troubleshooting
Sophisticated message passing between extension components
Full Manifest V3 (MV3) architecture and boilerplate generation

Use Cases

Creating a popup-based productivity tool with persistent local storage
Building a web modifier or scraper using content scripts and the Scripting API
Migrating legacy background pages to the modern Service Worker architecture

About

Key Features

Implementation of event-driven service workers and background logic
0 GitHub stars
Dynamic content script injection and secure DOM manipulation
Detailed Manifest V2 to V3 migration patterns and troubleshooting
Sophisticated message passing between extension components
Full Manifest V3 (MV3) architecture and boilerplate generation

Use Cases

Creating a popup-based productivity tool with persistent local storage
Building a web modifier or scraper using content scripts and the Scripting API
Migrating legacy background pages to the modern Service Worker architecture