<!-- AUTO-GENERATED by export-skills.py — DO NOT EDIT -->
---
applyTo: '**/*.{yaml,yml,tf,Dockerfile}'
---

# auth-implementation-patterns

> Master authentication and authorization patterns including JWT, OAuth2, session management, and RBAC to build secure, scalable access control systems. Use when implementing auth systems, securing APIs, or debugging security issues.

# Authentication & Authorization Implementation Patterns

Build secure, scalable authentication and authorization systems using industry-standard patterns and modern best practices.

## Use this skill when

- Implementing user authentication systems
- Securing REST or GraphQL APIs
- Adding OAuth2/social login or SSO
- Designing session management or RBAC
- Debugging authentication or authorization issues

## Do not use this skill when

- You only need UI copy or login page styling
- The task is infrastructure-only without identity concerns
- You cannot change auth policies or credential storage

## Instructions

- Define users, tenants, flows, and threat model constraints.
- Choose auth strategy (session, JWT, OIDC) and token lifecycle.
- Design authorization model and policy enforcement points.
- Plan secrets storage, rotation, logging, and audit requirements.

## Safety

- Never log secrets, tokens, or credentials.
- Enforce least privilege and secure storage for keys.

## Resources

