Know any GitHub repo cold — for you, or your AI agents. Get a Healthy / Mixed / Concerns signal summary and an onboarding doc — drop it into your repo as CLAUDE.md or .cursor/rules — in 60 seconds. Use it from the browser, or fetch via the public API.

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Sample preview · vercel/next.js

Healthy

Production-ready, actively maintained

✓Last commit 1d ago
✓30+ active contributors
✓MIT licensed
✓CI configured
✓Tests present
✓Distributed ownership (top contributor 22%)

Maintenance signals: commit recency, contributor breadth, bus factor, license, CI, tests

Onboarding: vercel/next.js

Example output · paste your own repo URL above to generate one

⚡TL;DR

Next.js is the React framework for production. The repo is a monorepo: packages/next is the framework engine, packages/create-next-app is the scaffolder, and examples/ ships runnable demos for every major feature.

🚀Get running

pnpm install
pnpm dev

🗺️Map of the codebase

packages/next/src/server/ — every request lands here
packages/next/src/build/ — the compiler pipeline (Turbopack, SWC)
packages/next/src/client/ — the runtime that hydrates pages
packages/next/src/lib/ — shared utilities used across server + client
test/e2e/ — end-to-end suites; start here when adding regression tests

This is what you get — a verdict, an exportable onboarding doc, plus tabs for activity, architecture, and an AI you can ask anything.