Repomix 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

source · Clone the upstream repo

git clone https://github.com/yamadashy/repomix

Claude Code · Install into ~/.claude/skills/

T=$(mktemp -d) && git clone --depth=1 https://github.com/yamadashy/repomix "$T" && mkdir -p ~/.claude/skills && cp -r "$T/browser/.claude/skills/browser-extension-developer" ~/.claude/skills/yamadashy-repomix-browser-extension-developer && rm -rf "$T"

manifest: browser/.claude/skills/browser-extension-developer/SKILL.md

source content

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 mode
```
npm run build-all
```
- Build all browsers
```
npm 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