tdd

Name: tdd
Availability: InStock
Author: Tolki

Implement features by writing failing tests before coding.

5|Updated Feb 24, 2026

Search Tags:#testing #tdd #development #quality #software #tests

Ready to run

npx skills add https://github.com/mrtolkien/GHOST --skill tdd-mrtolkien

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: tdd
Source: https://github.com/mrtolkien/GHOST/tree/main/prompts/skills/superpowers/tdd
Command: npx skills add https://github.com/mrtolkien/GHOST --skill tdd-mrtolkien

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This guidance helps developers ensure reliable, maintainable software by forcing test cases before implementation, reducing regressions and clarifying expected behavior.

Core Features & Use Cases

Test-first workflow: write a failing test before coding and iterate until all tests pass.
Red-Green-Refactor loop: follow the cycle to drive design decisions and clean code.
Quality assurance at early stages: detect design flaws and regressions early, improving stability across features.

Quick Start

Run a test-first cycle: write a failing test, implement the minimal code to pass, and refactor.

Frequently Asked Questions about tdd

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 quality?▼

Test-driven development improves software quality by enforcing a test-first workflow where developers write failing tests before coding. This prevents regressions, clarifies expected behavior, and detects design flaws early across features.

How do I implement a test-first workflow for new features?▼

To implement a test-first workflow, write a failing test defining the desired feature, implement minimal code to make it pass, and refactor. This Red-Green-Refactor loop drives design decisions and ensures safer refactoring.

What is the Red-Green-Refactor cycle in testing?▼

The Red-Green-Refactor cycle is a repeatable TDD loop: write a failing test (Red), implement minimal code to pass the test (Green), and clean up the code (Refactor). It drives design decisions and ensures higher code quality.

When should I use a test-driven development approach?▼

Use a test-driven development approach when you need reliable, maintainable software with safer refactoring. It is ideal for preventing production code without tests and ensuring quality assurance at early development stages.

Does test-driven development require specific testing frameworks?▼

Test-driven development does not mandate specific testing frameworks. It defines a repeatable cycle emphasizing clear intent and minimal implementation, allowing you to force test cases before implementation using your preferred tools.