What is the Refactoring Design skill?

It is a specialized capability for Claude Code that helps developers design architectural changes and test plans before modifying code, ensuring structural integrity.

How does it handle dependency management?

The skill specifically defines Dependency Injection (DI) seams, identifying which dependencies should become interfaces and how they should be injected for better testability.

When should I use this skill in my workflow?

Use it after identifying code smells (ideally with refactoring-diagnosis) but before performing the actual refactor to ensure a stable, testable plan is in place.

Does this skill help with automated testing?

Yes, it generates a detailed test strategy that covers happy paths, error-path failures for every dependency, and concurrency considerations.

Refactoring Design & Architecture

Name: Refactoring Design & Architecture
Author: withzombies

bywithzombies

•

生产力与工作流

Generates comprehensive architectural blueprints and test-driven strategies for complex code refactoring tasks.

The Refactoring Design skill bridges the gap between identifying code smells and executing changes by creating a rigorous design specification. It guides Claude to define component responsibilities, establish Dependency Injection (DI) seams, and map specific refactoring patterns to diagnosed issues. By enforcing type-driven invariants and a dual-track test strategy covering both happy and error paths, it ensures that structural improvements are planned with precision, significantly reducing regressions and technical debt during the implementation phase.

主要功能

01Standardized Refactor Design Spec for consistent team communication

02Definition of Dependency Injection (DI) seams and interface contracts

0358 GitHub stars

04Automated architectural pattern mapping based on identified code smells

05Comprehensive test strategy generation for happy paths and error handling

06Type-driven design planning to make invalid states unrepresentable

使用场景

01Creating testable boundaries in tightly coupled systems using DI patterns

02Designing a structural overhaul for legacy modules after a diagnosis report

03Transitioning from inheritance to composition in complex codebases

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add withzombies/hyperpowers refactoring-design

For use in Claude.ai and ChatGPT

Download Skill