Vibe-Proof: Security Hardening for Full-Stack Apps

Purpose: Systematically audit and fix security vulnerabilities in vibe-coded full-stack applications through parallel multi-agent analysis and guided remediation.

Origin

Extracted from a real hardening session on a React + Express + Stripe e-commerce platform deployed to Vercel. Refined through a second execution on a Next.js 16 + Supabase + CRM medical platform (Feb 2026). Between both sessions: 85+ issues found, including SQL injection, hardcoded backdoor passwords, secrets in URL params, .env files in git, and missing security headers.

When to Use

• After vibe-coding an MVP with API routes, databases, or payment integrations
• Before first real deployment or first real customer
• When you suspect "it works but is it safe?"
• Any Express/React/Next.js/Nuxt app with a backend