code-refactoring-assistant

code-refactoring-assistant is a skill for Claude Code, Codex from ArabelaTso/Skills-4-SE. It costs 81 tokens per session (5,968 once invoked), scanned A, original, Apache-2.0.

A tool for changing existing code structure while keeping its behavior the same. Refactoring includes tasks such as splitting long functions, removing duplicated code, and improving names.

In plain words
What is it for?
Use it to simplify complex logic, extract functions or classes, move responsibilities, rename unclear code, or prepare code for new features.
Why use it?
It helps make code easier to read, maintain, and extend without requiring a feature change. It also points out common structural problems, often called code smells.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/arabelatso/skills-4-se/code-refactoring-assistant
Any agent
npx skills add ArabelaTso/Skills-4-SE --skill code-refactoring-assistant
Clone the repo
git clone --depth 1 https://github.com/ArabelaTso/Skills-4-SE

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for code-refactoring-assistant

README.md
[![agentmods](https://agentmods.dev/badge/skills/arabelatso/skills-4-se/code-refactoring-assistant.svg)](https://agentmods.dev/skills/arabelatso/skills-4-se/code-refactoring-assistant)
Your own site
<a href="https://agentmods.dev/skills/arabelatso/skills-4-se/code-refactoring-assistant"><img src="https://agentmods.dev/badge/skills/arabelatso/skills-4-se/code-refactoring-assistant.svg" alt="Measured on agentmods" height="20"></a>
Per session 81 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,968 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00081 $0.05968
Opus 5 $0.00041 $0.02984
Sonnet 5 $0.00016 $0.01194
Haiku 4.5 $0.00008 $0.00597

Measured 6d ago against content hash e03f470f4454, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

code-refactoring-assistant scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/code-refactoring-assistant/SKILL.md · 979 lines

How it starts

The opening of the file, as written. The whole thing — 979 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Code Refactoring Assistant

Systematically improve code structure and quality through targeted refactorings. Identifies opportunities, suggests improvements, and applies changes while preserving behavior.

Core Capabilities

1. Code Smell Detection

Identify refactoring opportunities:

  • Long methods/functions - Functions doing too much
  • Large classes - Classes with too many responsibilities
  • Duplicate code - Repeated logic across codebase
  • Long parameter lists - Functions with many parameters
  • Primitive obsession - Using primitives instead of objects
  • Feature envy - Methods using other classes more than their own
  • Data clumps - Same group of data appearing together
  • Switch statements - Complex conditionals that could be polymorphic

2. Structural Refactorings

Improve code organization:

  • Extract Method - Pull out code into new function
  • Extract Class - Split class responsibilities
  • Inline Method/Variable - Remove unnecessary indirection
  • Move Method/Field - Relocate to appropriate class
  • Rename - Improve naming clarity
  • Change Function Signature - Update parameters
  • Introduce Parameter Object - Group parameters into object
  • Replace Conditional with Polymorphism - Use inheritance/interfaces

3. Simplification Refactorings

Reduce complexity:

  • Decompose Conditional - Simplify complex if/else
  • Consolidate Conditional - Combine related conditions
  • Remove Dead Code - Delete unused code
  • Simplify Boolean Expression - Make logic clearer
  • Replace Magic Number with Constant - Named constants
  • Replace Nested Conditional with Guard Clauses - Early returns
  • Replace Loop with Pipeline - Use functional operations

4. Generalization Refactorings

Improve abstraction:

  • Extract Interface - Define contracts
  • Extract Superclass - Pull up common behavior
  • Replace Type Code with Class - Use objects not constants
  • Replace Conditional with Strategy - Pluggable behavior
  • Form Template Method - Define algorithm skeleton
  • Replace Constructor with Factory - Flexible object creation

Read the full file on GitHub · 979 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 6d ago First seen · 979 lines · 81 tokens per session scan A e03f470f4454

Subscribe to this mod's changes

code-refactoring-assistant is a skill published in the GitHub repository ArabelaTso/Skills-4-SE (248 stars, last pushed 16d ago), licensed Apache-2.0. It adds 81 tokens to every session and 5,968 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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