refactoring

Guide post-test code refactoring in a TDD workflow.

Updated Feb 19, 2026

Search Tags:#code quality #tdd #best practices #refactoring #software development #maintainability

Ready to run

npx skills add https://github.com/taewook486/real-estate-mcp --skill refactoring-taewook486

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: refactoring
Source: https://github.com/taewook486/real-estate-mcp/tree/main/.claude/skills/refactoring
Command: npx skills add https://github.com/taewook486/real-estate-mcp --skill refactoring-taewook486

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill helps developers systematically improve the quality and structure of their code after it has successfully passed all tests, ensuring maintainability and reducing technical debt.

Core Features & Use Cases

Post-Green Refactoring: Guides the assessment and execution of refactoring steps only after tests are passing.
Priority-Based Improvement: Classifies refactoring tasks into critical, high, nice, or skip categories.
DRY Principle Guidance: Differentiates between abstracting shared knowledge and keeping structurally similar but independent code separate.
Use Case: After writing and passing tests for a new feature, use this Skill to identify and extract magic numbers, rename unclear variables, and simplify complex functions to make the code cleaner and easier to understand.

Quick Start

Use the refactoring skill to assess and improve the code structure after tests pass.

Frequently Asked Questions about refactoring

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

FAQPage Schema

What is code refactoring in a TDD workflow?▼

Code refactoring in TDD is the process of improving code structure, maintainability, and readability after tests pass. It focuses on reducing complexity by addressing code duplication, unclear naming, and magic numbers without changing external behavior.

How do I improve code quality after passing tests?▼

To improve code quality after passing tests, commit your working code first, then assess and execute refactoring tasks. Prioritize improvements into critical, high, nice, or skip categories to systematically reduce technical debt and simplify complex functions.

When should I apply the DRY principle during software development?▼

Apply the DRY principle during refactoring to abstract shared knowledge and eliminate true code duplication. However, keep structurally similar but independent code separate to avoid creating unnecessary abstractions that harm maintainability.

Can I refactor code before test execution?▼

No, you should not refactor code before test execution. This refactoring approach emphasizes post-green refactoring, meaning you must only assess and execute changes after all tests successfully pass to ensure you avoid speculative code and preserve functionality.

What are the best practices for reducing code complexity?▼

Best practices for reducing code complexity include identifying and extracting magic numbers, renaming unclear variables, and simplifying complex functions. These refactoring steps ensure your codebase remains maintainable and minimizes accumulated technical debt.