test-driven-development

Enforce the Red-Green-Refactor cycle for software development tasks.

Updated Aug 23, 2026

Search Tags:#code quality #testing #tdd #refactoring #software development #agile

Ready to run

npx skills add https://github.com/diegogalmarini/EscriAR --skill test-driven-development-diegogalmarini

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: test-driven-development
Source: https://github.com/diegogalmarini/EscriAR/tree/main/.agent/skills/test-driven-development
Command: npx skills add https://github.com/diegogalmarini/EscriAR --skill test-driven-development-diegogalmarini

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill enforces a rigorous Test-Driven Development (TDD) process, ensuring that code is reliable, maintainable, and free from regressions by requiring tests to be written before implementation.

Core Features & Use Cases

Enforces TDD Principles: Guides users through the Red-Green-Refactor cycle.
Prevents Regressions: Ensures new code is tested and existing functionality remains intact.
Improves Code Quality: Leads to cleaner, more modular, and well-documented code through testability.
Use Case: When developing a new feature, follow the TDD process outlined here to write a failing test, implement the minimal code to pass, and then refactor, ensuring the feature works as intended and doesn't break anything else.

Quick Start

Follow the Red-Green-Refactor cycle for all new features and bug fixes.

Frequently Asked Questions about test-driven-development

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

FAQPage Schema

What is the test-driven development cycle for writing new software features?▼

The test-driven development cycle is Red-Green-Refactor: you write a failing test first, implement the minimal code to pass it, and then refactor. This ensures code correctness and prevents regressions throughout software development.

How do I prevent code regressions when refactoring during agile development?▼

To prevent code regressions during refactoring, enforce a test-driven development process by writing failing tests before implementation. This ensures existing functionality remains intact and new code is thoroughly tested before integration.

Why should I write failing tests before implementing new code?▼

You should write failing tests before implementing new code because it enforces testability and prevents regressions. This test-driven approach leads to cleaner, more modular, and well-documented code by addressing common testing anti-patterns.

What is the best way to improve code quality and maintainability in software engineering?▼

The best way to improve code quality and maintainability is by applying test-driven development. Requiring tests to be written before implementation leads to cleaner, more modular code and ensures the software remains free from regressions.

When do I need to use test-driven development for bug fixes?▼

You need to use test-driven development for bug fixes when you want to ensure code correctness and prevent future regressions. By following the Red-Green-Refactor cycle, you write a failing test that reproduces the bug before fixing it.

Does test-driven development work without external testing dependencies?▼

Yes, test-driven development works without external dependencies by enforcing the Red-Green-Refactor cycle internally. It guides users through writing failing tests, implementing minimal code, and refactoring to ensure robust software engineering practices.