Nextjs Supabase Auth
Expert integration of Supabase Auth with Next.js App Router Use when: supabase auth next, authentication next.js, login supabase, auth middleware, protected route.
mkdir -p ./skills/nextjs-supabase-auth && curl -sfL https://raw.githubusercontent.com/mayurrathi/awesome-agent-skills/main/skills/nextjs-supabase-auth/SKILL.md -o ./skills/nextjs-supabase-auth/SKILL.mdRun in terminal / PowerShell. Requires curl (Unix) or PowerShell 5+ (Windows).
Skill Content
# 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`
When to Use
This skill is applicable to execute the workflow or actions described in the overview.
🎯 Best For
- Claude users
- Software engineers
- Development teams
- Tech leads
💡 Use Cases
- Code quality improvement
- Best practice enforcement
📖 How to Use This Skill
- 1
Install the Skill
Copy the install command from the Terminal tab and run it. The SKILL.md file downloads to your local skills directory.
- 2
Load into Your AI Assistant
Open Claude and reference the skill. Paste the SKILL.md content or use the system prompt tab.
- 3
Apply Nextjs Supabase Auth to Your Work
Open your project in the AI assistant and ask it to apply the skill. Start with a small module to verify the output quality.
- 4
Review and Refine
Review AI suggestions before committing. Run tests, check for regressions, and iterate on the skill output.
❓ Frequently Asked Questions
Is Nextjs Supabase Auth compatible with Cursor and VS Code?
Yes — this skill works with any AI coding assistant including Cursor, VS Code with Copilot, and JetBrains IDEs.
Do I need specific dependencies for Nextjs Supabase Auth?
Check the install command and Works With section. Most code skills only require the AI assistant and your codebase.
How do I install Nextjs Supabase Auth?
Copy the install command from the Terminal tab and run it. The skill downloads to ./skills/nextjs-supabase-auth/SKILL.md, ready to use.
Can I customize this skill for my team?
Absolutely. Edit the SKILL.md file to add team-specific instructions, examples, or workflows.
⚠️ Common Mistakes to Avoid
Skipping validation
Always test AI-generated code changes, even for simple refactors.
Missing dependency updates
Check if the skill requires updated dependencies or new packages.