Symfony Debug MCP Server

This is a standalone Model Context Protocol (MCP) server built with TypeScript and Bun that allows you to debug Symfony applications by inspecting profiler data. It is designed to be compiled into a single executable binary for Linux, macOS, and Windows.

Installation & Usage

Download the latest release for your platform from the Releases page.

Linux

1. Extract the archive:

   tar -xzf symfony-debug-mcp-linux.tar.gz

2. Make it executable:

   chmod +x symfony-debug-mcp-linux

3. Run the server:

   ./symfony-debug-mcp-linux --repository-directory=/path/to/your/repositories

macOS

1. Extract the archive:

   unzip symfony-debug-mcp-mac.zip

2. Make it executable:

   chmod +x symfony-debug-mcp-mac

3. Run the server:

   ./symfony-debug-mcp-mac --repository-directory=/path/to/your/repositories

   Note: You may need to go to System Settings > Privacy & Security to allow the application to run if it's blocked.

Windows

1. Extract symfony-debug-mcp-windows.zip.

2. Open a terminal (PowerShell or Command Prompt).

3. Run the server:

   .\symfony-debug-mcp-windows.exe --repository-directory=C:\path\to\your\repositories

Client Configuration

To use with Claude Desktop or other MCP clients, add this to your config:

{
  "mcpServers": {
    "symfony-debug": {
      "command": "/absolute/path/to/symfony-debug-mcp-linux",
      "args": ["--repository-directory=/absolute/path/to/your/repositories"]
    }
  }
}

Related MCP server: MCP Browser Logger

Prerequisites

• Bun (v1.0.0 or higher)

Setup

1. Install dependencies:

   bun install

2. Run in development mode:

   bun dev

Compilation

You can compile the server into a standalone binary for different platforms.

• Linux: bun run build:linux

• macOS (Apple Silicon): bun run build:mac

• Windows (x64): bun run build:windows

• Build All: bun run build:all

The binaries will be output to the dist/ directory.

Testing with an MCP Client

You can configure your MCP client (like Claude Desktop or an IDE extension) to use this server.

Raw Source (Development):

{
  "mcpServers": {
    "my-bun-server": {
      "command": "bun",
      "args": ["run", "/absolute/path/to/src/index.ts"]
    }
  }
}

Compiled Binary:

{
  "mcpServers": {
    "my-bun-server": {
      "command": "/absolute/path/to/dist/mcp-server-linux",
      "args": []
    }
  }
}

Debugging

VS Code Debugger

1. Go to the "Run and Debug" view in VS Code.

2. Select "Debug MCP Server" to start the server with the debugger attached.

   • This runs bun run --inspect-wait src/index.ts.

   • The debugger will pause at the entry point until execution resumes.

MCP Inspector

To test the server protocol interactively:

1. Run the "inspector" task (Terminal -> Run Task -> inspector).

2. This will launch the @modelcontextprotocol/inspector which provides a web interface to interact with your tools and resources.

3. Open the URL shown in the terminal (usually http://localhost:6274).