refactor-with-safety

Name: refactor-with-safety
Availability: InStock
Author: dylanmarriner

Refactor code incrementally with characterization tests and full suite verification.

Updated Aug 23, 2026

Search Tags:#maintenance #safety #refactor #code #incremental #tests

Ready to run

npx skills add https://github.com/dylanmarriner/windsurf-hooker --skill refactor-with-safety

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: refactor-with-safety
Source: https://github.com/dylanmarriner/windsurf-hooker/tree/main/windsurf/skills/refactor-with-safety
Command: npx skills add https://github.com/dylanmarriner/windsurf-hooker --skill refactor-with-safety

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Refactoring should improve code clarity, performance, or maintainability without changing observable behavior. This skill ensures refactorings are small, testable, and verifiable.

Core Features & Use Cases

Small, incremental changes with isolated commits
Write characterization tests to lock current behavior
Plan and execute step-by-step refactors with verification

Quick Start

Capture baseline behavior with tests, write characterization tests for current behavior, plan small incremental steps, implement changes one at a time, and run the full test suite after each step to ensure behavior is preserved.

Frequently Asked Questions about refactor-with-safety

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

FAQPage Schema

How do I refactor code without breaking existing behavior?▼

To refactor code without breaking existing behavior, write characterization tests to lock in current outputs, then implement small, incremental changes with isolated commits while running the full test suite after each step to verify behavior is preserved.

What are characterization tests and when do I need them for a code refactor?▼

Characterization tests capture and lock in the current observable behavior of your code before you change it. You need them during a code refactor to ensure that improving clarity, reducing duplication, or modernizing APIs does not alter external outputs.

What is the best way to plan incremental refactoring steps for a software project?▼

The best way to plan incremental refactoring steps is to create a specific plan for each change, implement modifications one isolated commit at a time, and execute full test suite verification after every step to guarantee observable behavior remains unchanged.

Can I rename identifiers and modernize APIs while preserving test coverage?▼

Yes, you can rename identifiers and modernize APIs while preserving test coverage by establishing baseline characterization tests first, then applying the changes through small, verifiable incremental steps with full test suite verification.

Does incremental refactoring work for reducing code duplication across any software project?▼

Incremental refactoring works for reducing code duplication across any software project by enforcing small commit steps, a dedicated plan per change, and continuous test suite verification to maintain observable behavior throughout the cleanup process.