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test-driven-development

Enforce a test-first workflow using the Red-Green-Refactor cycle.

Updated Aug 27, 2026
Search Tags:#workflow#tdd#red-green-refactor#quality-assurance#software-engineering#test-driven-development
One-click install
npx skills add https://github.com/eugene-belkovich/ai-setup --skill test-driven-development-eugene-belkovich
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: test-driven-development
Source: https://github.com/eugene-belkovich/ai-setup/tree/main/claude/base/skills/process/test-driven-development
Command: npx skills add https://github.com/eugene-belkovich/ai-setup --skill test-driven-development-eugene-belkovich

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Test-driven development helps teams ensure code quality by requiring tests before implementation, reducing bugs and regressions across features.

Core Features & Use Cases

  • Red-Green-Refactor cycle: Write a failing test, implement minimal code to pass, then refactor for clarity and maintainability.
  • Commit discipline: Encourages fast feedback loops and clearer requirements through automated tests.
  • Use Case: When adding a new feature or fixing a bug, start with a failing test to define expected behavior and prevent regressions.

Quick Start

Begin by writing a failing test for the feature you intend to add, then implement just enough code to pass the test, and finally refactor for readability.

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 the red-green-refactor cycle work?▼

Test-driven development is a test-first workflow guiding feature development through the red-green-refactor cycle. You write a failing test to define expected behavior, implement minimal code to pass, then refactor for clarity and maintainability.

How do I start writing tests first when fixing a bug or adding a new feature?▼

To start writing tests first, write a failing test that defines the expected behavior for your new feature or bug fix. Then implement just enough code to pass the test before refactoring for readability.

Does test-driven development work for refactoring existing code?▼

Yes, test-driven development applies to refactoring existing code. The test-first workflow ensures you start with a failing test to define expected behavior, preventing regressions while you refactor for maintainability.

Why should I write a failing test before implementation?▼

Writing a failing test before implementation reduces bugs and regressions across features. This test-first approach enforces commit discipline, provides fast feedback loops, and creates clearer requirements through automated tests.

When should I not use a test-first workflow for software engineering?▼

You should avoid a test-first workflow when fast feedback loops and clear requirements are not required. The test-driven development approach enforces commit discipline and automated tests, which may be unnecessary for trivial code changes.

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