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webext-core

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Cross-context browser extension utilities.

Software Engineering#messaging#testing#extension#browser#shadow-dom#proxy-service#job-scheduler
Authormengxi-ream
Version1.0.0
Installs0

System Documentation

What problem does it solve?

Utilities for browser extensions aim to reduce the complexity of building robust, cross-context functionality by providing ready-made components for inter-context RPC, type-safe messaging, URL pattern matching, test-friendly fake browser APIs, job scheduling, and shadow DOM isolation.

Core Features & Use Cases

  • Cross-context RPC via proxy-service to call background implementations from popup/content/scripts
  • Type-safe messaging with defineExtensionMessaging and defineWindowMessaging
  • URL pattern matching utilities using MatchPattern
  • In-memory fake browser API for unit tests to simulate browser APIs
  • Background job scheduling with defineJobScheduler
  • Shadow DOM isolation containers for content-script UIs via createIsolatedElement
  • Optional storage wrappers with type safety

Quick Start

Install the core utilities in your extension and start by exposing a background service with registerService, then call it from a popup or content script using createProxyService.

Dependency Matrix

Required Modules

None required

Components

references

💻 Claude Code Installation

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Please help me install this Skill:
Name: webext-core
Download link: https://github.com/mengxi-ream/read-frog/archive/main.zip#webext-core

Please download this .zip file, extract it, and install it in the .claude/skills/ directory.
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