Agent skill · software engineering · aiskillstore
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.
Why this skill is useful
Provides specific commands and structure for developing cross-browser extensions using the WXT framework, which the AI may not know.
What it needs
Requires npm installed locally. About 1k tokens when loaded. Last updated 2026-08-07. 405 stars on the source repository.
What this skill does
Browser Extension Developer Cross-browser extension (Chrome/Firefox/Edge) using WXT framework with Manifest V3. Injects "Repomix" button into GitHub repository pages. Structure Commands npm run dev - Development mode (Chrome default) npm run dev:firefox - Firefox dev mode npm run build-all - Build all browsers npm run lint / npm run test i18n 12 languages: en, ja, de, fr, es, ptBR, id, vi, ko, zhCN, zhTW, 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
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills aiskillstore/browser-extension-developer