Refactoring MCP Server

Name: Refactoring MCP Server
Author: marshally

by marshallyversion 0.1.2i★ 5iRuns on your computer

Registry nameio.github.marshally/mcp-refactoring

How to install

What it does

MCP server exposing Martin Fowler's refactoring catalog to LLMs with 71+ refactorings

Connects Runs on your computer
Account or key No key needed
Category Search & AI memory

Install

Pick the AI app you use, then copy the settings.

Passed 1/2 checks · Runs on your computer

First: which AI do you use?

ClaudeWeb · app · phoneChatGPTWebClaude CodeTerminalCursorCode editorVS CodeCode editorOtherOther apps

Pick your app and the steps appear below.

Works with Claude, with some setup first

Install Python (uv) on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone

Install Python (uv)
One time only; it works for every server that needs Python (uv)
Open the Python (uv) download page ↗
Done
Open the Claude desktop app’s settings file
SettingsDeveloperEdit Config
Done

Paste these settings and save the file

{
  "mcpServers": {
    "refactoring": {
      "command": "uvx",
      "args": [
        "mcp-refactoring"
      ]
    }
  }
}

Done

Quit Claude and open it again
Done
Try it
Use Refactoring MCP Server and tell me what you can do for me, then show me one thing
✓ If Claude says it is using Refactoring MCP Server or shows a Refactoring MCP Server tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

ChatGPT cannot connect Refactoring MCP Server yet

Refactoring MCP Server runs on your computer, but ChatGPT can only connect servers that run on the web

What you can do instead

A · Use an app that can connect Refactoring MCP Server

Steps for Claude →Install Python (uv) on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone
Steps for Claude Code →Install Python (uv) on your computer first (one time)
Steps for Cursor →Install Python (uv) on your computer first (one time)
Steps for VS Code →Install Python (uv) on your computer first (one time)

B · Others in Search & AI memory that work with ChatGPT

Picked from the most used in the same category, only ones that connect by address with no key

Context7✓ ChatGPT
AIHOT✓ ChatGPT
Sui Knowledge Base (kapa.ai)✓ ChatGPT

Works with Claude Code, with some setup first

Install Python (uv) on your computer first (one time)

Install Python (uv)
One time only; it works for every server that needs Python (uv)
Open the Python (uv) download page ↗
Done
Open Terminal
Mac: press Command+Space and type Terminal · Windows: open PowerShell
Done

Paste this command and press Enter

claude mcp add --scope user refactoring -- uvx mcp-refactoring

Done

Type /mcp in Claude Code
You should see Refactoring MCP Server listed as connected
Done
Try it
Use Refactoring MCP Server and tell me what you can do for me, then show me one thing
✓ If Claude Code says it is using Refactoring MCP Server or shows a Refactoring MCP Server tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Cursor, with some setup first

Install Python (uv) on your computer first (one time)

Install Python (uv)
One time only; it works for every server that needs Python (uv)
Open the Python (uv) download page ↗
Done
Click this button to open Cursor
Open in Cursor
Cursor asks you to confirm; click Install
Done
Open the AI chat in Cursor in Agent mode
Done
Try it
Use Refactoring MCP Server and tell me what you can do for me, then show me one thing
✓ If Cursor says it is using Refactoring MCP Server or shows a Refactoring MCP Server tool in the answer, you are connected

Menu names checked against Cursor’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with VS Code, with some setup first

Install Python (uv) on your computer first (one time)

Install Python (uv)
One time only; it works for every server that needs Python (uv)
Open the Python (uv) download page ↗
Done
Click this button to open VS Code
Open in VS Code
VS Code asks you to confirm; click Install
Done
Open the AI chat in VS Code in Agent mode
Done
Try it
Use Refactoring MCP Server and tell me what you can do for me, then show me one thing
✓ If VS Code says it is using Refactoring MCP Server or shows a Refactoring MCP Server tool in the answer, you are connected

Menu names checked against VS Code’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Other apps that use MCP, such as Windsurf, Zed or Gemini CLI, each add servers differently. See how in the app list.

See every app that uses MCP →

JSON settings are under “For developers” below

Stuck? Ask people who use Refactoring MCP Server💬 Discussion →

For developers: Terminal commands and JSON settings

Installed on your computer

Claude Code

claude mcp add --scope user refactoring -- uvx mcp-refactoring

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "refactoring": {
      "command": "uvx",
      "args": [
        "mcp-refactoring"
      ]
    }
  }
}

Cursor (~/.cursor/mcp.json)

{
  "mcpServers": {
    "refactoring": {
      "command": "uvx",
      "args": [
        "mcp-refactoring"
      ]
    }
  }
}

VS Code (mcp.json)

{
  "servers": {
    "refactoring": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "mcp-refactoring"
      ]
    }
  }
}

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

At a glance

GitHub stars i: 5
Downloads per weeki: 23/wk
Licence i: No licence stated
Connection: Runs on your computer
Transport: stdio
Latest versioni: 0.1.2
Categoryi: Search & AI memory
Published to registryi: Nov 30, 2025
Code last changedi: Nov 30, 2025
Maker: marshally
Packages: pypi: mcp-refactoring
Repo: marshally/mcp-refactoring
Registry status: Active

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Run on your computer in

Claude Goose LM Studio Msty Studio Cherry Studio Cursor VS Code + GitHub Copilot Visual Studio Windsurf (Devin Desktop)Zed Kiro Cline Continue JetBrains AI Assistant Claude Code Codex CLI Gemini CLI OpenCode nodecode Warp LibreChat Raycast

All apps, with pros and cons →

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 12, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account marshally, which owns the repo
! Caution
Still maintained
Code last changed 12 months ago, more than 6 months ago
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Discussion

Ask, share a tip or report that it does not work. Sorted by what people marked helpful.

No posts yet. Be the first to ask or share.

Posts here are written by users, not the PopNx team.

User reviews

No reviews yet

Compared with others in Search & AI memoryi

More stars than 89% of the other 5969 servers in this category
Published to the registry more recently than 1% of the other 5969 servers in this category
Basic checks equal to or better than 11% of the other 5969 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Refactoring MCP Server safe?

It passed 1 of 2 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed 12 months ago, and the latest version (0.1.2) reached the registry 12 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Python (uv) on your computer.

What can I use instead?

In the same category: Context7, Codebase Memory, Ruflo

Others in the same category

Servers in the same category from other makers, sorted by stars.

Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Context7

Feeds AI the latest docs for libraries and frameworks before it answers, so code it writes does not use outdated, removed functions.

by upstashWidely used↓ 1.2M/wk★ 64.6KUpdated 3 days ago

Computer or cloud

Install

Codebase Memory

Codebase knowledge graph for AI agents — 162 languages, sub-ms queries, 99% fewer tokens.

by DeusDataWidely used↓ 16.8K/wk★ 48.5KUpdated 26 days ago

Runs on your computer

Install

Ruflo

Agent teams, swarms, memory and hooks for Claude Code and Codex, served over MCP.

by ruvnetWidely used↓ 74.3K/wk★ 81.5K Stars for the whole repoUpdated yesterday

Runs on your computer

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

mcp-refactoring

An MCP (Model Context Protocol) server that exposes Martin Fowler's refactoring catalog to LLMs through a pluggable, language-agnostic architecture.

Features

71+ Refactorings: Full implementation of Martin Fowler's refactoring catalog
Pluggable Architecture: Support for multiple languages (Python first, Ruby/Java/Go planned)
Safe by Default: Preview mode shows changes before applying
LLM-Optimized: TOON output format for token efficiency

Installation

# Using uvx (recommended)

uvx mcp-refactoring

Using pip

pip install mcp-refactoring

Using pipx

pipx install mcp-refactoring

Requirements

Python 3.10+
A language backend (e.g., molting-cli for Python)

Install the Python backend:

pip install molting-cli

Claude Desktop Configuration

Add to your Claude Desktop config:

"mcpServers": { "refactoring": { "command": "uvx", "args": ["mcp-refactoring"] } } }

Available Tools

list_refactorings

List available refactorings with their parameter contracts.

list_refactorings(language="python", category="composing_methods")

preview_refactoring

Preview what changes a refactoring would make (dry-run).

preview_refactoring(

refactoring="extract-method", target="src/order.py::Order::calculate#L10-L15", params={"name": "calculate_tax"} )

apply_refactoring

Apply a refactoring to the codebase.

apply_refactoring(

refactoring="rename-method", target="src/order.py::Order::calc", params={"new_name": "calculate_total"} )

inspect_structure

Get structural information about code.

inspect_structure(path="src/order.py", depth="method")

analyze_code

Analyze code for smells and suggest refactorings.

analyze_code(path="src/order.py", smells=["long-method"])

Target Specification

Each language uses its native conventions:

Python

src/order.py::Order::calculate_total        # Method

src/order.py::Order::calculate_total#L10-L15 # Line range src/order.py::Order # Class

Configuration

Create ~/.mcp-refactoring/config.toml:

[backends.python]

enabled = true command = "molting"

[backends.ruby] enabled = false command = "molting-rb"

Environment variable overrides:

MCP_REFACTORING_PYTHON_COMMAND=/path/to/molting

MCP_REFACTORING_PYTHON_ENABLED=true

Refactoring Categories

Based on Martin Fowler's catalog:

Composing Methods: extract-method, inline-method, etc.
Moving Features: move-method, extract-class, etc.
Organizing Data: encapsulate-field, replace-type-code, etc.
Simplifying Conditionals: decompose-conditional, guard-clauses, etc.
Simplifying Method Calls: rename-method, add-parameter, etc.
Dealing with Generalization: pull-up-method, extract-interface, etc.

Development

# Clone the repository

git clone https://github.com/marshally/mcp-refactoring.git cd mcp-refactoring

Install in development mode

pip install -e ".[dev]"

Run tests

pytest

Run linter

ruff check .

Run type checker

mypy src/

License

MIT License - see LICENSE for details.

Refactoring MCP Server

What it does

Install

Install Python (uv)

Open the Claude desktop app’s settings file

Paste these settings and save the file

Quit Claude and open it again

Try it

What you can do instead

Install Python (uv)

Open Terminal

Paste this command and press Enter

Type /mcp in Claude Code

Try it

Install Python (uv)

Click this button to open Cursor

Open the AI chat in Cursor in Agent mode

Try it

Install Python (uv)

Click this button to open VS Code

Open the AI chat in VS Code in Agent mode

Try it

Installed on your computer

At a glance

Which apps can use it

Related guides

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Discussion

User reviews

Compared with others in Search & AI memoryi

Common questions

Others in the same category

Context7

Codebase Memory

Ruflo

README from the maker

mcp-refactoring

Features

Installation

Using pip

Using pipx

Requirements

Claude Desktop Configuration

Available Tools

list_refactorings

preview_refactoring

apply_refactoring

inspect_structure

analyze_code

Target Specification

Python

Configuration

Refactoring Categories

Development

Install in development mode

Run tests

Run linter

Run type checker

License