MCP Server Framework

""" Echo Tool - Simple demonstration tool. Demonstrates: - Basic tool registration with @mcp.tool() decorator - Input parameter handling - Return value formatting """ from typing import TYPE_CHECKING if TYPE_CHECKING: from mcp.server.fastmcp import FastMCP from ..config import ServerConfig def register(mcp: "FastMCP", config: "ServerConfig") -> None: """Register echo tools with the server.""" @mcp.tool() def echo(message: str) -> str: """ Echo back the provided message. Args: message: The message to echo back Returns: The same message, confirming receipt """ return f"Echo: {message}" @mcp.tool() def echo_uppercase(message: str) -> str: """ Echo back the message in uppercase. Args: message: The message to transform and echo Returns: The message converted to uppercase """ return f"ECHO: {message.upper()}" @mcp.tool() def echo_reverse(message: str) -> str: """ Echo back the message reversed. Args: message: The message to reverse Returns: The message with characters in reverse order """ return f"Echo: {message[::-1]}"