Agent skill · software engineering · aiskillstore
clerk-auth
Expert patterns for Clerk auth implementation, middleware, organizations, webhooks, and user sync Use when: adding authentication, clerk auth, user authentication, sign in, sign up.
Why this skill is useful
Provides specific implementation patterns and middleware usage for Clerk authentication in Next.js that the AI wouldn't reliably generate on its own.
What it needs
Requires next installed locally. Requires clerk account access. About 1k tokens when loaded. Last updated 2026-08-07. 405 stars on the source repository.
What this skill does
Clerk Authentication Patterns Next.js App Router Setup Complete Clerk setup for Next.js 14/15 App Router. Includes ClerkProvider, environment variables, and basic sign-in/sign-up components. Key components: ClerkProvider: Wraps app for auth context <SignIn />, <SignUp />: Pre-built auth forms <UserButton />: User menu with session management Middleware Route Protection Protect routes using clerkMiddleware and createRouteMatcher. Best practices: Single middleware.ts file at project root Use createRouteMatcher for route groups auth.protect() for explicit protection Centralize all auth logic in middleware Server Component Authentication Access auth state in Server Components using auth() and currentUser(). Key functions: auth(): Returns userId, sessionId, orgId, claims currentUser(): Returns full User object Both require clerkMiddleware to be configured ⚠️ Sharp Edges Issue Severity Solution ------- ---------- ---------- Issue critical See docs Issue high See docs Issue high See docs Issue high See docs Issue medium See docs Issue medium See docs Issue medium See docs Issue medium See docs
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills aiskillstore/clerk-auth