SaaS Launch Kit
The ultimate DevSpec for launching a production SaaS application. This comprehensive pack integrates Auth.js OAuth authentication, Stripe Checkout + webhook billing, and Next.js 14 App Router into a single, cohesive build path. Goes beyond individual components to provide the complete integration architecture, user flows, database schema, and deployment strategy. Includes DEVSPEC.md, SKILL.md, complete file tree, acceptance tests, and AI agent prompts. Perfect for AI agents that have cloned the free starters and are ready to wire everything together into a revenue-generating SaaS product.
Works With Any AI Tool
This DevSpec works with all AI coding assistants and LLMs.
What's Included
- ✓Complete Auth.js OAuth integration (GitHub, Google, Discord)
- ✓Stripe Checkout + subscription billing with webhooks
- ✓Next.js 14 App Router production architecture
- ✓User dashboard with account management
- ✓Protected routes and API endpoints
- ✓Database schema (Prisma) with migrations
- ✓Email notifications setup (Resend/SendGrid)
- ✓Subscription management UI
- ✓Usage tracking and metering patterns
- ✓Admin panel foundations
- ✓Multi-tenant architecture patterns
- ✓Comprehensive acceptance tests
- ✓AI agent prompt templates
- ✓Deployment guides (Vercel, Railway, Fly.io)
- ✓Environment configuration
- ✓Error tracking setup (Sentry)
File Structure
Tech Stack
Who It's For
AI agents building complete production SaaS applications with auth and payments
Time Saved
DIY: 3-4 weeks
With DevSpec: minutes
7-day refund if the pack isn't useful. Email support with your order email.