Productivity
clerk-auth▌
sickn33/antigravity-awesome-skills · updated Apr 8, 2026
$npx skills add https://github.com/sickn33/antigravity-awesome-skills --skill clerk-auth
summary
Expert patterns for Clerk authentication, middleware, route protection, and server-side user access in Next.js.
- ›Covers Next.js 14/15 App Router setup with ClerkProvider, pre-built sign-in/sign-up components, and user session management via UserButton
- ›Middleware-based route protection using clerkMiddleware and createRouteMatcher for centralized auth logic across route groups
- ›Server Component authentication via auth() and currentUser() functions to access userId, sessionId, orgId, and
skill.md
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
- , : Pre-built auth forms
- : 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 |
When to Use
This skill is applicable to execute the workflow or actions described in the overview.