Production Hardening Skill

Purpose: Systematically transform a working MVP into a production-grade, reusable template by addressing the Five Mortal Sins of vibe-coded projects.

When to Use

• After completing an MVP that "works but feels fragile"
• Before turning a project into a reusable template
• When preparing for real users or production deployment
• After a Mars audit reveals issues

The Five Mortal Sins (Audit Checklist)

1. Data Model Drift

• TypeScript types match actual data structure
• Optional vs required fields are correct
• Enums/unions include all actual values
• No as never or as any type bypasses