specimin-refactor

Execute single-pattern code refactors with test baseline verification.

Updated Nov 7, 2025

Search Tags:#refactor #test-driven #code-patterns #code-cleanup #safety-preserving

Ready to run

npx skills add https://github.com/timsvoice/specimin --skill specimin-refactor

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: specimin-refactor
Source: https://github.com/timsvoice/specimin/tree/main/.claude-plugin/skills/specimin-refactor
Command: npx skills add https://github.com/timsvoice/specimin --skill specimin-refactor

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Provides surgical, single-pattern refactors with tests to ensure behavior remains unchanged.

Core Features & Use Cases

Pattern-driven: extract method, rename variable, or replace conditional with polymorphism.
Baseline verification: tests confirm behavior before and after refactor.
Risk-limited changes: small, auditable changes with clear success criteria.

Quick Start

Request a named refactor, then review the preview and approve to execute.

Frequently Asked Questions about specimin-refactor

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

FAQPage Schema

How do I safely refactor code without breaking existing functionality?▼

Refactoring with behavior preservation uses test-driven validation: establish a test baseline before changes, preview modifications, execute surgical refactors following a named pattern, then verify tests still pass to confirm functionality remains unchanged.

What refactoring patterns are supported for code cleanup?▼

Named refactoring patterns include extract method, rename variable, and replace conditional with polymorphism. Each pattern targets specific code-improvement goals while maintaining behavior through test verification.

How do I know if a refactor is safe to apply?▼

The skill establishes baseline test results before refactoring, previews changes with quality checks, executes only after approval, then re-runs tests to confirm behavior preservation and identify any regressions.

Can I refactor multiple patterns in one operation?▼

No. The skill enforces a single named refactoring pattern per operation to keep changes auditable, reviewable, and limited in scope with clear success criteria.

What happens if tests fail after a refactor?▼

Test verification occurs post-refactor to detect behavior changes. Failures indicate the refactor altered functionality; the skill gates execution by approval and surfaces test results so you can decide next steps.