Mcp Claude Integration— agent skill

MCP and Claude integration

step 1. create folder in vs code

step 2. create venv

step 3. activate venv .ps1

step 4. install dependencies

step 5. make mcp_tools.py file and write starter code

step 6. locate claude folder in your pc using [explorer "$env:APPDATA\Claude"] in powershell

step 7. create a config json file using [code "path_to_folder\claude_desktop_config.json" ]

step 8. write json code (this is configuration file code to be written in claude folder ):

{
  "preferences": {
    "menuBarEnabled": false,
    "legacyQuickEntryEnabled": false
  },
  "mcpServers": {
    "simple_math": {
      "command": "D:\\MCP server learning\\venv\\Scripts\\python.exe",
      "args": [
        "D:\\MCP server learning\\mcp_tools.py"
      ]
    }
  }
}

step 9. restart claude properly (note: ctrl+ shift + esc to end task of claude in backcgrund to restart it)

step 10. just write in claude prompt bar directly

example : use simple_math add 5 and 10 here we made a tool simple_math where add is written

Claude Desktop never executes your Python functions directly.

What Claude actually does is:

✔ It launches your Python process ✔ It connects to it through stdin/stdout ✔ It speaks the Model Context Protocol (MCP) ✔ Your Python file only works because it is an MCP server

hence we need mcp server to interact with llm with our personal python code

Here i made multiply in addition tool to verify my custom tool code and it is working fine.

<img width="1919" height="1009" alt="Screenshot 2025-11-19 193458" src="https://github.com/user-attachments/assets/984b16fb-4ece-4f6a-9622-e8cf928bed7f" />