What is spec-driven development?

Spec-driven development means writing down what you want to build before you start coding — whether by hand or with AI assistance.

A good spec includes:

• Requirements: What should the feature do?
• Architecture: How will the pieces fit together?
• Security constraints: What data needs protection?
• Edge cases: What could go wrong?

When you give AI tools a clear spec, they produce better, more reliable code. Think of it like giving a contractor a blueprint instead of saying "build me a house."

Better specs produce better AI-generated code.