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test-driven-development

Enforce the RED-GREEN-REFACTOR cycle with test-first Python development using pytest.

1|Updated May 5, 2026
Search Tags:#code quality#testing#TDD#development practices#test-driven-development
One-click install
npx skills add https://github.com/ajayjoshi-ciphersonic/octo-reach --skill test-driven-development-ajayjoshi-ciphersonic
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: test-driven-development
Source: https://github.com/ajayjoshi-ciphersonic/octo-reach/tree/main/hermes/skills-dev/test-driven-development
Command: npx skills add https://github.com/ajayjoshi-ciphersonic/octo-reach --skill test-driven-development-ajayjoshi-ciphersonic

SYSTEM DOCUMENTATION & REQUIREMENTS

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

What problem does it solve?

This Skill ensures a disciplined and structured approach to development by enforcing the Test-Driven Development (TDD) cycle, which improves code quality and reduces bugs.

Core Features & Use Cases

  • Enforce TDD Cycle: Guides developers through the RED-GREEN-REFACTOR cycle with strict adherence to test-first development.
  • Test Writing & Execution: Offers guidelines on writing effective tests and executing them to verify functionality.
  • Refactoring Best Practices: Encourages clean code practices and refactoring without introducing new bugs.

Quick Start

Start a new feature or bugfix by writing a failing test first, then write code to pass the test, and finally refactor.

Frequently Asked Questions about test-driven-development

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

FAQPage Schema
How do I start test-driven development for a Python feature?▼

Test-driven development begins by writing a failing test before any feature code, then writing code to pass the test, and finally refactoring. This Skill guides you through that RED-GREEN-REFACTOR cycle using Python and pytest.

What is the TDD cycle and how does it prevent regressions?▼

The TDD cycle is a test-first development approach enforcing the RED-GREEN-REFACTOR sequence. By writing tests before code, it prevents regressions and ensures new fixes do not break existing functionality during refactoring.

Do I need pytest to follow TDD practices with this Skill?▼

Yes, you need Python and testing frameworks like pytest to execute the test-driven development cycle. The Skill provides guidelines on writing effective tests and executing them to verify functionality.

When should I use test-first development for bug fixes?▼

Test-first development should be used for bug fixes to ensure a disciplined approach and reduce future bugs. This Skill enforces writing tests before code to verify the fix and prevent regressions during refactoring.

How do I refactor code without introducing new bugs in TDD?▼

To refactor without introducing new bugs, TDD encourages refactoring only after tests pass. This Skill offers best practices for clean code refactoring while maintaining strict test coverage to prevent regressions.

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