Implement or review authentication and authorization with explicit token, session and resource-access boundaries.
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What the file says
# 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.
- If detailed examples are required, open `resources/implementation-playbook.md`.
## Safety
- Never log secrets, tokens, or credentials.
- Enforce least privilege and secure storage for keys.
## Resources
- `resources/implementation-playbook.md` for detailed patterns and examples.
## Worked example
…
The line at the top of this page pins the label git:20260905.b0bf123, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
GET https://markdownregistry.com/api/v1/artifacts/art_dav5udnny2xibpa4
GET https://markdownregistry.com/api/v1/resolve?ref=sickn33/agentic-awesome-skills/auth-implementation-patterns
GET https://markdownregistry.com/api/v1/blob/3632db84887404e41e4761658588af16f6f22c19a9ac048c073ed53466a85b8c
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