OAuth 2.0 Core Knowledge Deep Knowledge : Use with technology: for comprehensive documentation. Authorization Code Flow (Recommended) Implementation When NOT to Use This Skill - Simple JWT authentication - Use skill for custom token-based auth - NextAuth.js integration - Use skill for Next.js projects - Internal authentication - Use traditional username/password with JWT - API-to-API communication - Use API keys or mTLS Common Flows | Flow | Use Case | |------|----------| | Authorization Code | Web apps (server-side) | | Authorization Code + PKCE | SPAs, mobile apps | | Client Credentials | M…