add: router agent env

environments/router_env/engine/tools/mcp/calc/calc_server.py

@@ -0,0 +1,36 @@
+from mcp.server.fastmcp import FastMCP
+import logging
+import os
+
+# Setup logging to a file
+# Adjust the log file path if necessary, perhaps to be relative to this script's location
+# or a dedicated logs directory.
+log_file_path = os.path.join(os.path.dirname(__file__), 'math_server_official.log')
+logging.basicConfig(
+    level=logging.DEBUG,
+    format='%(asctime)s - %(levelname)s - %(name)s - %(message)s',
+    handlers=[
+        logging.FileHandler(log_file_path, mode='w'), # 'w' to overwrite each run
+        logging.StreamHandler()
+    ]
+)
+logger = logging.getLogger(__name__)
+
+mcp = FastMCP("Official Math Server 🚀")
+
+
+@mcp.tool()
+def add(a: int, b: int) -> int: # Changed return type hint to int
+    """Add two numbers and return the result"""
+    logger.info(f"Executing add tool with a={a}, b={b}")
+    return a + b
+
+@mcp.tool()
+def multiply(a: int, b: int) -> int: # Changed return type hint to int
+    """Multiply two numbers and return the result"""
+    logger.info(f"Executing multiply tool with a={a}, b={b}")
+    return a * b
+
+if __name__ == "__main__":
+    logger.info(f"Starting Official MCP math_server.py with STDIO transport... Log file: {log_file_path}")
+    mcp.run(transport="stdio") # Ensure stdio transport is used as in server_stdio.py