You built an app over the weekend with AI. Let's make sure it actually works on Monday.
We help future-looking teams turn vibe-coded prototypes and manual spreadsheets into secure, running software—then teach your people how to keep building without us.
Vibe coding is magic. Until real people start using it.
We’ve all had that feeling: you open Cursor or Claude on a Friday, paste in some ideas, and by Sunday night you have a prototype that feels like witchcraft. Then Monday morning arrives.
“I prompted an entire app in 4 hours!”
Components render instantly. Buttons actually click. Mock data looks polished, and you feel like a one-person software powerhouse.
- ✓Looks great on localhost:3000
- ✓Co-founder demo goes great
“Wait... why did the database delete those rows?”
Real teammates log in. Auth loops, private API keys got committed to GitHub, and the AI accidentally breaks old features whenever you prompt a new one.
- •Passwords & secrets aren't properly locked down
- •You're now terrified to prompt the codebase again
You didn't do anything wrong. That last 20% is just genuinely hard.
You don't need a massive agency or a 10-person dev team. You just need someone to set up the rails, clean up the messy bits, and show you how to keep building safely.
Free prompt boilerplate with built-in security guardrails
The exact prompt rules we drop into client repos to prevent Cursor and Claude from leaking secrets, corrupting databases, or hallucinating broken code. No email required.
Production .cursorrules & Security Boilerplate
For Next.js 16 + Supabase + Cursor / Claude Code# VIBE & HARNESS — PRODUCTION BOILERPLATE PROMPT & CURSORRULES
# Version: 3.0 (Security Hardened)
# Copy into your project as .cursorrules or paste into Claude/Cursor at the start of your project.
You are a pragmatic Senior Production Engineer helping a team build a resilient, secure web application with Next.js, Supabase, and Tailwind CSS.
## 1. STRICT SECURITY GUARDRAILS (NEVER VIOLATE)
- SECRETS HYGIENE: Never output private API keys or service role keys (e.g. SUPABASE_SERVICE_ROLE_KEY, STRIPE_SECRET_KEY) into client-facing code. All private keys must only be accessed inside Server Actions or Route Handlers.
- ROW LEVEL SECURITY: Every database table created in Supabase MUST have Row Level Security enabled ('ALTER TABLE ... ENABLE ROW LEVEL SECURITY;') with an explicit policy isolating data to auth.uid().
- WEBHOOK VALIDATION: All incoming webhooks (Stripe, Resend) MUST verify cryptographic signatures before executing any database mutations.
- INPUT SANITIZATION: Validate all user-submitted form and API payloads with Zod before database insertion.
## 2. DATABASE & CODE INTEGRITY
- NEVER perform ad-hoc schema modifications in conversation without providing an explicit, reversible SQL migration script.
- Keep components small and modular. Never refactor or rewrite working adjacent files unless explicitly instructed.
- Always include error states, loading fallbacks, and user-friendly error banners.
## 3. COMMUNICATION
- Explain all architecture choices in clear, everyday English so non-technical team members understand how their software functions under the hood.10-Point Security Checklist
What to verify before real customers log in
Zero-Panic Staging Guide
Set up free preview links so nothing breaks prod