Sign-in methods

The auth methods you can add beside email + password — social OAuth and a passwordless magic link. Drop these onto the login page; enable the backends in src/lib/auth.ts (keeping tanstackStartCookies the last plugin).

Social sign-in

The drop-in <SocialButtons> component. Calls authClient.signIn.social({ provider }).

Buttons toast a friendly message until you add provider keys.

Magic link

Passwordless: email a one-time sign-in link instead of a password.

Real providers need keys: set the OAuth client id/secret env vars and enable socialProviders + the magicLink() plugin in src/lib/auth.ts. Until then these controls are a visual catalogue — see the add-auth-method skill.