TanStack Start Auth and Backend Integrations

Use this skill when the task is primarily about user identity, session handling, protected flows, or where backend and database work should live in a TanStack Start app.

Scope

• auth-strategy selection
• session management
• route protection and auth context
• hosted auth providers vs DIY auth
• database access placement and backend integration patterns
• official auth-oriented examples

Routing cues

• Clerk, WorkOS, Better Auth, Auth.js, DIY auth, login/logout, session cookies, beforeLoad protection, useSession, or database access inside server functions and loaders -> use this skill
• general server-function mechanics, middleware ordering, or src/server.ts plumbing -> use tanstack-start-server-runtime-and-apis
• starter selection, Tailwind setup, or high-level Start vs Next.js decisions -> use tanstack-start-overview-and-setup
• hosting-provider setup or production observability -> use tanstack-start-deployment-and-runtime-ops