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auth-and-authorization-patterns

Use this skill when implementing authentication (login, token issuance) or authorization (access control, permissions). Apply whenever the task involves login flows, JWT, OAuth2, session management, or RBAC.

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SKILL.md
Quality
Evals
Security

Auth & Authorization Patterns

Authentication (who are you?):

  • Use a battle-tested library — do not roll your own crypto.
  • Hash passwords with bcrypt/argon2; never MD5/SHA1 for passwords.
  • Use short-lived JWTs (15–60 min) with refresh tokens; store refresh tokens securely.
  • Implement MFA for sensitive operations.

Authorization (what can you do?):

  • Check authorization on every request, not just at login.
  • Enforce RBAC or ABAC at the service layer, not the UI.
  • Apply principle of least privilege: grant minimal permissions needed.

OAuth2 / OIDC:

  • Use the Authorization Code flow with PKCE for user-facing apps.
  • Validate iss, aud, exp, and nonce claims on every token.

Session management:

  • Regenerate session ID after login (session fixation prevention).
  • Set HttpOnly and Secure flags on session cookies.
Repository
aiming-lab/MetaClaw
Path

memory_data/skills/auth-and-authorization-patterns/SKILL.md

Commit

922caf3

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