Overview

Complete authentication with OAuth, session management, and security. Apply automatically when the request matches; the user does not need to mention this skill.

This skill should apply automatically when the request matches; the user does not need to mention this skill.

Workflow

1. Read the task-specific instructions in this file before acting.
2. Apply the documented constraints, resources, and verification steps.
3. Confirm the result against the requested outcome before completion.

Usage

Use this skill when the request matches its description. The skill is discovered automatically; the user does not need to mention the skill explicitly.

User Authentication System Skill

Automate setup of complete authentication systems with OAuth, session management, and security best practices.

Purpose

Quickly add production-ready authentication to web applications with support for multiple providers (Clerk, Supabase, Auth0, NextAuth).

When to Use

• Adding auth to a new application
• Switching auth providers
• Implementing OAuth (Google, GitHub, etc.)
• Setting up role-based access control
• Migrating from custom auth

Quick Start

python3 /home/ubuntu/skills/user-authentication-system/scripts/setup_auth.py \
  /path/to/project \
  clerk \
  pk_test_your_key

Supported Providers

• Clerk - Fastest setup (10 min)
• Supabase - Open source, free tier
• Auth0 - Enterprise-grade
• NextAuth - Full control, customizable

What It Does

1. Detects framework (Next.js, React, Express, Flask)
2. Installs auth dependencies
3. Creates configuration files
4. Generates auth provider components
5. Provides sign-in/sign-up templates

Protected Routes Example

import { auth } from '@clerk/nextjs'

export default async function Dashboard() {
  const { userId } = auth()
  if (!userId) redirect('/sign-in')
  return <div>Protected content</div>
}

Time Savings

Manual: 2-3 hours
With Skill: 15-20 minutes
Saved: ~2 hours per project

Files

• scripts/setup_auth.py - Automated setup (200 lines)
• templates/signin.tsx - Sign-in component
• references/auth_patterns.md - Comprehensive guide (200+ lines)

Related Skills

• deployment-automation - Deploy with auth configured
• database-schema-generator - Create users/sessions tables
• analytics-dashboard - Track auth events

Production-ready authentication in minutes.