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test-driven-development

Enforce test-first development by requiring a failing test before production code.

4|2|Updated Jan 25, 2026
Search Tags:#testing#TDD#quality#software-engineering#test-driven-development#minimal-implementation#green-tests
One-click install
npx skills add https://github.com/lyfe2025/lyfes-coding-skills --skill test-driven-development-lyfe2025
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: test-driven-development
Source: https://github.com/lyfe2025/lyfes-coding-skills/tree/main/skills/superpowers/test-driven-development
Command: npx skills add https://github.com/lyfe2025/lyfes-coding-skills --skill test-driven-development-lyfe2025

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill enforces test-first development by ensuring a failing test exists before production code.

Core Features & Use Cases

  • Test-Driven Development cycle: write a failing test, then implement the minimal code to pass, followed by refactoring.
  • Quality assurance uplift: reduces regressions and improves design and documentation through explicit tests.
  • Use Case: when starting a new feature, fixing a bug, or performing a refactor, drive work with tests first.

Quick Start

Write a failing test for the target feature, implement the smallest amount of code to pass the test, then refactor while keeping all tests green.

Frequently Asked Questions about test-driven-development

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

FAQPage Schema
How do I start test-driven development for a new software feature?▼

Test-driven development begins by writing a failing test for the target feature, then implementing the minimal code required to pass that test, and finally refactoring while keeping all tests green.

Why does writing tests first improve software quality and reduce regressions?▼

Writing tests first improves software quality by enforcing explicit test coverage before production code exists, which reduces regressions and improves design through maintainable, minimal implementations.

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

Test-driven development applies to bug fixes and refactoring by driving work with tests first, ensuring a failing test exists before changing production code to keep all tests green.

What is the minimal implementation approach in test-driven development?▼

The minimal implementation approach in test-driven development requires writing the smallest amount of code needed to pass the failing test, avoiding over-engineering while maintaining green tests.

Do I need any specific testing frameworks or dependencies to follow the TDD cycle?▼

The test-driven development cycle requires no specific frameworks or dependencies, focusing instead on the workflow of writing failing tests, implementing minimal code, and refactoring with green tests.

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