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test-driven-development

Enforce a Red-Green-Refactor workflow with failing tests before production code.

1|Updated Feb 1, 2026
Search Tags:#testing#TDD#red-green-refactor#quality-assurance#software-engineering#test-driven-development
One-click install
npx skills add https://github.com/bakwankawa/lazy-code-skill --skill test-driven-development-bakwankawa
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: test-driven-development
Source: https://github.com/bakwankawa/lazy-code-skill/tree/main/.cursor/skills/superpowers/test-driven-development
Command: npx skills add https://github.com/bakwankawa/lazy-code-skill --skill test-driven-development-bakwankawa

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This skill advocates a test-first development approach to ensure features are implemented against verifiable expectations, reducing regressions and guiding design decisions early.

Core Features & Use Cases

  • Red-Green-Refactor workflow: Write a failing test, implement minimal code to pass, then refactor with confidence.
  • Improved design and reliability: Tests drive API shape and behavior, catching regressions before they reach production.
  • Use Case: When starting a new feature or fixing a bug, begin with a failing test to define the required behavior and verification criteria.

Quick Start

Start by writing a failing test for the intended feature, run the test to observe failure, implement the minimal code to satisfy the test, and then refactor for clarity and maintainability.

Frequently Asked Questions about test-driven-development

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
What is test-driven development and how does it improve software reliability?▼

Test-driven development is a test-first process requiring failing tests before production code, ensuring features match verifiable expectations to reduce regressions. It drives design decisions early by defining clear behavioral criteria upfront.

How do I apply the red-green-refactor workflow for a new feature?▼

To apply the red-green-refactor workflow, write a failing test defining the intended feature behavior, implement minimal production code to pass the test, then refactor for clarity. This incremental process ensures verified functionality throughout development.

Can I use test-first development for bug fixes and refactoring existing code?▼

Yes, test-first development applies to bug fixes and refactoring across software projects. Begin by writing a failing test that defines the required bug fix behavior, then implement minimal code to satisfy the verification criteria before refactoring.

How does writing failing tests before production code guide software design?▼

Writing failing tests before production code guides software design by forcing you to define clear expectations and verification criteria early. Tests drive the API shape and behavior, ensuring the architecture naturally supports required functionality.

What are the limitations of enforcing a strict test-driven development workflow?▼

Enforcing strict test-driven development requires writing minimal, incremental production code only after failing tests exist. This workflow may slow initial feature velocity and requires discipline to maintain the red-green-refactor cycle across all software changes.

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