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test-driven-development

Implement test-driven development workflows using the Red-Green-Refactor cycle.

7|Updated Apr 10, 2026
Search Tags:#automation#testing#tdd#quality assurance#debugging#refactoring
One-click install
npx skills add https://github.com/carl10086/ys-powers --skill test-driven-development-carl10086
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: test-driven-development
Source: https://github.com/carl10086/ys-powers/tree/main/skills/test-driven-development
Command: npx skills add https://github.com/carl10086/ys-powers --skill test-driven-development-carl10086

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This skill addresses the common issue of fragile, bug-prone code by enforcing a disciplined test-first development cycle that ensures every feature and fix is verified by automated tests.

Core Features & Use Cases

  • The Prove-It Pattern: Ensures bug fixes are verified by a reproduction test before implementation, preventing regressions.
  • TDD Cycle Enforcement: Guides the agent through Red-Green-Refactor steps to maintain high code quality.
  • Test Pyramid Strategy: Encourages a healthy balance of unit, integration, and E2E tests to optimize for speed and reliability.

Quick Start

Use the test-driven-development skill to write a failing test for the new user authentication logic before implementing the feature.

Frequently Asked Questions about test-driven-development

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

FAQPage Schema
How do I prevent regressions when fixing bugs in an existing codebase?▼

To prevent regressions during bug fixing, apply the Prove-It pattern by writing a reproduction test that verifies the specific bug before implementing the actual code fix.

What is the Red-Green-Refactor cycle in test-driven development?▼

The Red-Green-Refactor cycle in test-driven development enforces writing a failing test first, implementing the minimum code to pass it, and then safely refactoring the codebase to maintain high quality.

How do I balance unit and integration tests for reliable software automation?▼

You balance tests by following a Test Pyramid Strategy, which encourages a healthy distribution of unit, integration, and E2E tests to optimize verification for both speed and reliability across your codebase.

Can I use test-driven development for refactoring tasks across an entire project?▼

Yes, you can use test-driven development for refactoring tasks across an entire project. It applies a test-first workflow to ensure code reliability and verify that structural changes do not break existing functionality.

When should I write a failing test before implementing new feature logic?▼

You should write a failing test before implementing new feature logic whenever you are developing new functionality, ensuring that every feature is verified by automated tests from the very start of the cycle.

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