Generate a Browser Extension Boilerplate with Claude
Building a browser extension means juggling manifests, content scripts, background workers, and messaging between contexts. Claude scaffolds the entire structure so you can focus on the actual feature.
Create a Chrome extension (Manifest V3) that adds a floating
button to every page. When clicked, it opens a side panel showing
a summary of the page content. Include a popup with settings,
a background service worker, and proper TypeScript types for the
Chrome API. Use Vite for bundling.
Claude generates a complete project with the right file structure:
my-extension/
├── manifest.json
├── src/
│ ├── background/service-worker.ts
│ ├── content/inject.ts
│ ├── popup/popup.html
│ ├── popup/popup.ts
│ └── sidepanel/panel.ts
├── vite.config.ts
└── package.json
The manifest gets all the right permissions and content script patterns:
{
"manifest_version": 3,
"permissions": ["sidePanel", "activeTab", "storage"],
"content_scripts": [{
"matches": ["<all_urls>"],
"js": ["src/content/inject.ts"]
}]
}
Claude handles the message passing between content script and background worker, storage sync for settings, and even generates the Vite config with the CRXJS plugin for hot reloading during development.
For Firefox compatibility, just ask:
Make this extension cross-browser compatible with Firefox using
the webextension-polyfill library.
Skip the boilerplate maze — Claude knows the Manifest V3 quirks so you can ship your extension faster.
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Set up Claude Code as an automated reviewer in your CI pipeline — on every pull request, it reads the diff, checks for bugs, security issues, missing tests, and convention violations, then posts its findings as a PR comment. Your human reviewers get a head start because the obvious issues are already flagged before they look.
Before deploying, tell Claude to read your project — migrations, environment variables, queue workers, scheduled tasks, caching, third-party integrations — and generate a deployment checklist that's specific to your app. Not a generic "did you run migrations?" list, but one that knows YOUR infrastructure and catches the things YOUR deploy can break.
Instead of writing a README from memory or copying a template, tell Claude to read your project and generate one that's actually accurate — real setup instructions from your config, real architecture from your directory structure, real API examples from your routes, and real prerequisites from your dependency files.