backend-auth-js

Authentication library for Next.js applications (NextAuth.js v5). Use when building Next.js 14+ apps that need OAuth providers (GitHub, Google, etc.), credentials login, or session management. Provides adapters for Prisma, Drizzle, and other databases. Choose Auth.js over Passport.js for Next.js App Router projects.

$ Installer

git clone https://github.com/petbrains/mvp-builder /tmp/mvp-builder && cp -r /tmp/mvp-builder/.claude/skills/backend-auth-js ~/.claude/skills/mvp-builder

// tip: Run this command in your terminal to install the skill