whoami-mcp

Instructions

Implementation Reference

• main.py:9-18 (handler)

  The handler function for the 'whoami' MCP tool. It retrieves the current system username using getpass.getuser() and returns it as a string, with error handling that returns an error dictionary.
  def whoami() -> str: """Returns the username of the current system user as my identity.""" try: # Get the current system username using getpass.getuser() username = getpass.getuser() # Return a simple dictionary with the username return username except Exception as e: # Handle any unexpected errors (e.g., environment issues) return {"error": f"Failed to fetch username: {str(e)}"}
• main.py:8-8 (registration)

  Registers the 'whoami' function as an MCP tool using the @mcp.tool() decorator from FastMCP.
  @mcp.tool()
• main.py:9-10 (schema)

  Schema inferred from function signature (no inputs, str output) and docstring describing the tool's purpose and return value.
  def whoami() -> str: """Returns the username of the current system user as my identity."""
• main.py:2-2 (helper)

  Imports getpass module, used by the whoami handler to fetch the current username.
  import getpass