Clerk Authentication

SkillSecurity

The clerk auth skill is a skill that gives an AI agent reference patterns for implementing Clerk authentication in Next.js. It covers provider setup, pre-built sign-in and sign-up components, middleware-based route protection, and server-side helpers like auth() and currentUser(), and flags common pitfalls so mistakes get caught early.

Use Clerk Authentication in Claude, ChatGPT or Ahel Desktop

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Then ask your AI: use the Clerk Authentication skill

Details

Instructions available. Your AI can read the instructions. Execution depends on the setup they require.

Have a Next.js 14/15 App Router project where authentication will be added.

Clerk AuthenticationStart free

What your AI can do with it

  • Set up ClerkProvider, environment variables, and sign-in/sign-up components for Next.js
  • Protect routes using clerkMiddleware and createRouteMatcher in a single middleware.ts
  • Use auth() to get userId, sessionId, orgId, and claims in Server Components
  • Use currentUser() to retrieve the full User object server-side
  • Add <SignIn />, <SignUp />, and <UserButton /> components with session management
  • Flag common Clerk auth pitfalls so mistakes get caught early

Getting started

  1. Have a Next.js 14/15 App Router project where authentication will be added.
  2. Add the clerk-auth skill so the agent can reference its patterns.
  3. Ask the agent to add authentication, sign-in, sign-up, or protected routes to the app.
  4. Follow the agent's setup steps, including ClerkProvider, environment variables, and middleware configuration.

What this skill tells your AI

The instructions your AI receives, as published by davila7/claude-code-templates in cli-tool/components/skills/development/clerk-auth/SKILL.md and read by ahel’s review.

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

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Signals

GitHub stars
32k
Forks
4k
Last commit
Oct 2026

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Questions

What does the clerk auth skill do?
It guides an agent through adding sign-in, sign-up, and protected routes to an app, using Clerk patterns for Next.js, including provider setup, pre-built components, middleware protection, and server-side helpers.
When should the skill be used?
When adding authentication, clerk auth, user authentication, sign in, or sign up to a project.
Does it work outside Next.js?
The documented patterns are for Next.js 14/15 App Router; other frameworks are not covered.
Advanced
Item type
skill
Key
clerk-auth-davila7
Source
github.com/davila7/claude-code-templates