MCP Multi-Tool Server

Instructions

Implementation Reference

• server.py:108-114 (handler)

  The handler function implementing the logic for the 'factorial' MCP tool. It validates the input integer n (non-negative and <=100) and computes factorial using math.factorial.

  def factorial(n: int) -> int:
      """Calculate the factorial of a non-negative integer."""
      if n < 0:
          raise ValueError("Factorial is not defined for negative numbers")
      if n > 100:
          raise ValueError("Number too large for factorial calculation")
      return math.factorial(n)

• server.py:107-107 (registration)

  The @mcp.tool() decorator registers the factorial function as an MCP tool, making it available for invocation.

  @mcp.tool()