Source Relation MCP server for AI agents

This MCP server analyzes source code dependencies in a project directory, mapping relationships between files by examining import statements across multiple programming languages. It helps Claude quickly identify file dependencies and understand project structure, supporting TypeScript/JavaScript, Python, Ruby, and Rust with their specific import patterns.

Installation Requirements

Prerequisites

Python 3.10 or higher
uv package manager

Installation Steps

First, install the uv package manager:

curl -LsSf https://astral.sh/uv/install.sh | sh

Next, navigate to the MCP server directory and install dependencies:

cd /path/to/mcp-source-relation
uv sync

Configuration

Claude for Desktop Setup

Add the following configuration to your claude_desktop_config.json file:

{
    "mcpServers": {
        "source-relation": {
            "command": "uv",
            "args": [
                "--directory",
                "/path/to/mcp-source-relation",  # Replace with the absolute path to the project directory
                "run",
                "source_relation.py"
            ]
        }
    }
}

Usage

Using with Claude

To analyze dependencies in a project, instruct Claude with a command like: /Users/xxx/GitHub/xxx/ のソースの依存関係を確認して

When using this MCP server with Claude:

If you specify a directory, it analyzes the src subdirectory
If you specify a file, it analyzes dependencies based on that file
Claude supports path input directly in prompts

To use with prompts, select: Attach from MCP -> Choose an integration -> source-relation

Output Format

The analysis results are output in JSON format as follows:

{
  "dependencies": {
    "components/Button.tsx": [
      "types/index.ts",
      "utils/theme.ts"
    ],
    "pages/index.tsx": [
      "components/Button.tsx",
      "utils/api.ts"
    ]
  }
}

All paths are displayed as relative paths based on the src directory.

Supported Import Formats

TypeScript/JavaScript

import { Component } from './Component'
import type { Type } from '@/types'
import './styles.css'
require('./module')
Alias paths (@/components/...)

Python

import module
from module import name
from .module import name
from ..module import name

Ruby

require 'module'
require_relative './module'
Requires without file extensions

Rust

mod module;
use crate::module;
use super::module;
use self::module;

How to install this MCP server

For Claude Code

To add this MCP server to Claude Code, run this command in your terminal:

claude mcp add-json "source-relation" '{"command":"uv","args":["--directory","/path/to/mcp-source-relation","run","source_relation.py"]}'

See the official Claude Code MCP documentation for more details.

For Cursor

There are two ways to add an MCP server to Cursor. The most common way is to add the server globally in the ~/.cursor/mcp.json file so that it is available in all of your projects.

If you only need the server in a single project, you can add it to the project instead by creating or adding it to the .cursor/mcp.json file.

Adding an MCP server to Cursor globally

To add a global MCP server go to Cursor Settings > Tools & Integrations and click "New MCP Server".

When you click that button the ~/.cursor/mcp.json file will be opened and you can add your server like this:

{
    "mcpServers": {
        "source-relation": {
            "command": "uv",
            "args": [
                "--directory",
                "/path/to/mcp-source-relation",
                "run",
                "source_relation.py"
            ]
        }
    }
}

Adding an MCP server to a project

To add an MCP server to a project you can create a new .cursor/mcp.json file or add it to the existing one. This will look exactly the same as the global MCP server example above.

How to use the MCP server

Once the server is installed, you might need to head back to Settings > MCP and click the refresh button.

The Cursor agent will then be able to see the available tools the added MCP server has available and will call them when it needs to.

You can also explicitly ask the agent to use the tool by mentioning the tool name and describing what the function does.

For Claude Desktop

To add this MCP server to Claude Desktop:

1. Find your configuration file:

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
Windows: %APPDATA%\Claude\claude_desktop_config.json
Linux: ~/.config/Claude/claude_desktop_config.json

2. Add this to your configuration file:

{
    "mcpServers": {
        "source-relation": {
            "command": "uv",
            "args": [
                "--directory",
                "/path/to/mcp-source-relation",
                "run",
                "source_relation.py"
            ]
        }
    }
}

3. Restart Claude Desktop for the changes to take effect