Agent Skills: rails-auth-patterns

Authentication patterns for Rails applications. Automatically invoked when working with user login, signup, sessions, password resets, token authentication, has_secure_password, Devise, or auth configuration. Triggers on "authentication", "auth", "login", "signup", "session", "password", "has_secure_password", "Devise", "current_user", "sign_in", "sign_out", "remember me", "password reset", "email confirmation". NOT for authorization/permissions (use controller patterns for Pundit) or API token auth (use rails-api-patterns for JWT).