I built a CLI that scans codebases — stack detection, dependency mapping, convention analysis, security checks. One command, no config, nothing leaves your machine. I ran it against 8 well-known open source projects to see what it picks up.

1. Dub (dub.co) — YC-backed link management

TypeScript · Next.js · Prisma → MySQL (80 models) · 12 packages

Auth: NextAuth | AI: Vercel AI | Payments: Stripe

Testing: Vitest, Playwright | UI: Tailwind CSS