Agent skill
browser-extension-developer
Use this skill when developing or maintaining browser extension code in the `browser/` directory, including Chrome/Firefox/Edge compatibility, content scripts, background scripts, or i18n updates.
Install this agent skill to your Project
npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/development/browser-extension-developer
SKILL.md
Browser Extension Developer
Cross-browser extension (Chrome/Firefox/Edge) using WXT framework with Manifest V3. Injects "Repomix" button into GitHub repository pages.
Structure
browser/
├── entrypoints/ # background.ts, content.ts
├── public/_locales/ # i18n (12 languages)
├── wxt.config.ts # WXT configuration
└── .output/ # Built files (chrome-mv3, firefox-mv2)
Commands
npm run dev- Development mode (Chrome default)npm run dev:firefox- Firefox dev modenpm run build-all- Build all browsersnpm run lint/npm run test
i18n
12 languages: en, ja, de, fr, es, pt_BR, id, vi, ko, zh_CN, zh_TW, hi
New language: Create public/_locales/[code]/messages.json with keys: appDescription, openWithRepomix
Notes
- Chrome/Edge use
chrome.*APIs, Firefox may need polyfills - Run lint and tests before completion
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