Traits Matcher MCP server

The MCP Traits Matcher is a personality analysis server built using the FastMCP framework that helps analyze and match personalities. It allows you to create person profiles, define personality traits, update personalities based on descriptions, and find suitable candidates for job positions.

Installation

Prerequisites

• Python 3.x
• pip

Setting Up Your Environment

1. Clone the repository to your local machine
2. Create a virtual environment:

python -m venv venv

3. Activate the virtual environment:

For Windows:

venv\Scripts\activate

For Linux/macOS:

source venv/bin/activate

4. Install dependencies:

pip install --user -r requirements.txt

Database Configuration

The system uses SQLite databases (mcp_persons.db and mcp_traits.db). These are created automatically when you run the server for the first time, so no manual setup is required.

Using the MCP Traits Matcher

Basic Operations

Creating a Person

To create a new person profile:

mcp.create_person(name="John Doe")

Adding a Description to a Person

Add personality descriptions to update a person's profile:

mcp.add_description(name="John Doe", description="friendly and dominant")

Creating a Trait

Define personality traits with specific attributes:

mcp.create_trait(name="friendly", friendliness=8.0, dominance=2.0)

Finding Matches for a Job

Search for candidates matching a job description:

mcp.find_matches(company_name="Acme Corp", job_description="Looking for friendly and dominant candidates")

API Resources

The server exposes several resources for accessing data:

• persons://all - Get a list of all persons
• traits://all - Get a list of all defined traits
• persons://{name} - Get details for a specific person by name

Available Tools

The MCP server provides these core tools:

• create_person - Creates a new person profile
• add_description - Updates a person's personality based on text descriptions
• create_trait - Defines new personality traits with specific attributes
• find_matches - Identifies people matching job requirements

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 "traits-matcher" '{"command":"python","args":["-m","fastmcp","traits-matcher"]}'

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": {
        "traits-matcher": {
            "command": "python",
            "args": [
                "-m",
                "fastmcp",
                "traits-matcher"
            ]
        }
    }
}

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": {
        "traits-matcher": {
            "command": "python",
            "args": [
                "-m",
                "fastmcp",
                "traits-matcher"
            ]
        }
    }
}

3. Restart Claude Desktop for the changes to take effect