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test-driven-development

Implement Test-Driven Development by writing failing tests before production code.

Updated May 25, 2026
Search Tags:#code quality#testing#tdd#development practices#test-first
One-click install
npx skills add https://github.com/webdevtodayjason/subctl-rust --skill test-driven-development-webdevtodayjason
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: test-driven-development
Source: https://github.com/webdevtodayjason/subctl-rust/tree/main/skills/test-driven-development
Command: npx skills add https://github.com/webdevtodayjason/subctl-rust --skill test-driven-development-webdevtodayjason

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill enforces the Test-Driven Development (TDD) methodology, helping developers write tests before coding, ensuring better code quality and maintainability.

Core Features & Use Cases

  • RED-GREEN-REFACTOR Cycle: Guided approach to write failing tests first, then minimal code to pass them, and refactor.
  • Best Practices: Outlines when to use TDD, its iron law, and the importance of writing meaningful tests.
  • Anti-Patterns: Provides a checklist for common mistakes to avoid and when to restart the TDD cycle.
  • Hermes Agent Integration: Facilitates using TDD in project workflows and task dispatching with Hermes agents.

Quick Start

Implement a new feature using TDD. Write a test first to define the desired behavior, observe the test fail, write code to make the test pass, and refactor if needed.

Frequently Asked Questions about test-driven-development

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

FAQPage Schema
How do I implement Test-Driven Development to improve code quality?▼

Test-Driven Development improves code quality by guiding you through the RED-GREEN-REFACTOR cycle: write a failing unit test first, implement minimal production code to pass it, then refactor for maintainability.

What are common TDD anti-patterns and mistakes to avoid during development?▼

Common TDD anti-patterns include writing meaningless tests or skipping the refactoring phase. This approach provides a checklist of mistakes to avoid and identifies exactly when you should restart the TDD cycle.

When do I need to use test-first development practices in software engineering?▼

You need test-first development practices when your software engineering project requires strict adherence to TDD principles, ensuring robust and maintainable software through unit tests and refactoring strategies.

Does this TDD approach work with Hermes agent workflows and task dispatching?▼

Yes, this TDD approach integrates with Hermes agents to facilitate using test-first development practices directly within your project workflows and task dispatching processes.

What is the best way to write failing tests before production code?▼

The best way to write failing tests before production code is to define the desired behavior first, observe the test fail, write the minimal code required to make the test pass, and then refactor.

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