Test Driven Development

---
name: Test Driven Development
description: Drives development with tests. Use when implementing any logic, fixing any bug, or changing any behavior. Use when you need to prove that code works, when a bug report arrives, or when you're about to modify existing functionality.
---

# Test Driven Development

Part of the **Production Engineering Skills** pack by Addy Osmani (`addyosmani/agent-skills`).

Drives development with tests. Use when implementing any logic, fixing any bug, or changing any behavior. Use when you need to prove that code works, when a bug report arrives, or when you're about to modify existing functionality.

This catalog entry summarizes the skill for discovery. Get the full skill — including any bundled scripts and resources — from the source:

Full skill & source: https://github.com/addyosmani/agent-skills/tree/main/skills/test-driven-development