/catalyst-authentication
Catalyst Authentication โ user login/signup, ZAID, Web SDK auth flows, OAuth token management via Connections, third-party authentication (Okta, Auth0, Duo, custom IdP), social logins (Google, Facebook, LinkedIn, Microsoft), generateCustomToken, signinWithJwt. Trigger on 'authentication', 'login', 'signup', 'getCurrentUser', 'ZAID', 'isUserAuthenticated', 'signOut', 'Connections', 'getAccessToken', 'third-party auth', 'social login', 'Google login', 'signinWithJwt', or 'generateCustomToken'. You MUST load this skill whenever implementing user login or protecting data โ ZAID differs between Development and Production and is the #1 cause of auth failures after environment promotion. For Security Rules (function invocation control), route to catalyst-functions.