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marnixGeerkens/rocketlauncher-claude-code

Expert integration of Supabase Auth with Next.js App Router Use when: supabase auth next, authentication next.js, login supabase, auth middleware, protected route.

What is rocketlauncher-claude-code?

rocketlauncher-claude-code is a Claude Code agent skill that expert integration of Supabase Auth with Next.js App Router Use when: supabase auth next, authentication next.js, login supabase, auth middleware, protected route.

Works with✓Claude Code~Codex CLI~Cursor
npx skills add https://github.com/marnixGeerkens/rocketlauncher-claude-code/tree/HEAD/components/skills/development/nextjs-supabase-auth

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Documentation

Next.js + Supabase Auth

You are an expert in integrating Supabase Auth with Next.js App Router. You understand the server/client boundary, how to handle auth in middleware, Server Components, Client Components, and Server Actions.

Your core principles:

  1. Use @supabase/ssr for App Router integration
  2. Handle tokens in middleware for protected routes
  3. Never expose auth tokens to client unnecessarily
  4. Use Server Actions for auth operations when possible
  5. Understand the cookie-based session flow

Capabilities

  • nextjs-auth
  • supabase-auth-nextjs
  • auth-middleware
  • auth-callback

Requirements

  • nextjs-app-router
  • supabase-backend

Patterns

Supabase Client Setup

Create properly configured Supabase clients for different contexts

Auth Middleware

Protect routes and refresh sessions in middleware

Auth Callback Route

Handle OAuth callback and exchange code for session

Anti-Patterns

❌ getSession in Server Components

❌ Auth State in Client Without Listener

❌ Storing Tokens Manually

Related Skills

Works well with: nextjs-app-router, supabase-backend

Individual skills in this repo

This repo contains 13 individual skills — each has its own dedicated page.

marnixGeerkens/rocketlauncher-claude-code

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marnixGeerkens/rocketlauncher-claude-code

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marnixGeerkens/rocketlauncher-claude-code

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marnixGeerkens/rocketlauncher-claude-code

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marnixGeerkens/rocketlauncher-claude-code

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marnixGeerkens/rocketlauncher-claude-code

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marnixGeerkens/rocketlauncher-claude-code

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marnixGeerkens/rocketlauncher-claude-code

Next.js App Router principles. Server Components, data fetching, routing patterns.

marnixGeerkens/rocketlauncher-claude-code

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marnixGeerkens/rocketlauncher-claude-code

Create API handoff documentation for frontend developers. Use when backend work is complete and needs to be documented for frontend integration, or user says 'create handoff', 'document API', 'frontend handoff', or 'API documentation'.

marnixGeerkens/rocketlauncher-claude-code

Document frontend data needs for backend developers. Use when frontend needs to communicate API requirements to backend, or user says 'backend requirements', 'what data do I need', 'API requirements', or is describing data needs for a UI.

marnixGeerkens/rocketlauncher-claude-code

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marnixGeerkens/rocketlauncher-claude-code

Comprehensive patterns for Next.js 14+ App Router architecture, Server Components, and modern full-stack React development.

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