tdd-tidy

Refactor code structurally using Kent Beck's Tidy First methodology.

Updated Nov 10, 2025
One-click install
npx skills add https://github.com/SwiftyJunnos/Claude-Code-with-TDD --skill tdd-tidy
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: tdd-tidy
Source: https://github.com/SwiftyJunnos/Claude-Code-with-TDD/tree/main/.claude/skills/tdd-tidy
Command: npx skills add https://github.com/SwiftyJunnos/Claude-Code-with-TDD --skill tdd-tidy

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) components.

What problem does it solve?

This Skill addresses the challenge of maintaining clean, well-structured code by enabling developers to make purely structural improvements without altering existing functionality, making future development easier and safer.

Core Features & Use Cases

  • Structural Refactoring: Safely rename variables, extract methods, reorganize code, and format for improved readability.
  • Tidy First Workflow: Integrates seamlessly into TDD by allowing developers to "tidy" code before adding new behavior.
  • Use Case: Before adding a new feature, use this skill to clean up the relevant code sections, making the subsequent implementation of the new feature smoother and less error-prone.

Quick Start

Execute the tdd-tidy skill to refactor the code for better structure.

Frequently Asked Questions about tdd-tidy

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

FAQPage Schema
How do I refactor code for clarity without altering program behavior?

Refactor code for clarity without altering program behavior by applying Kent Beck's methodology to make isolated structural changes. Rename elements, extract methods, and reorganize code while ensuring all tests remain green throughout the process.

What is the Tidy First approach in software development?

The Tidy First approach in software development is a methodology for making purely structural improvements to code. It allows developers to tidy code structure before adding new behavior, making subsequent feature implementation smoother and safer.

When should I reorganize code before adding a new feature?

Reorganize code before adding a new feature when the existing structure lacks clarity or maintainability. Tidying the relevant code sections first makes the subsequent implementation of new behavior smoother and less error-prone.

Do I need existing tests to safely extract methods and rename variables?

Yes, existing tests are required to safely extract methods and rename variables. The methodology ensures all tests remain green throughout the structural refactoring process, verifying that program behavior remains unaltered.

Can structural refactoring be used outside of test-driven development?

Structural refactoring can be used outside of test-driven development, but it integrates seamlessly into TDD. It focuses on preparing code for subsequent behavioral modifications by improving readability and maintainability without altering functionality.

What are the limitations of making isolated structural code changes?

The limitation of isolated structural code changes is that they do not alter existing functionality or add new behavior. This approach focuses solely on readability and maintainability, preparing code for separate subsequent modifications.