Describe where logging info should be observed

[sheffler]

I am examining the Context .info(), .debug() and report_progress() methods. I would like a simple example of how to use them and where I should look for output.

I have written the following tiny example. The Error output from the Inspector is shown ad the end of this message. Where should I be able to find the messages or progress? An example of the correct way to use these facilities would be appreciated.

Could there be an error where the send_log_message() method is not awaited?

from mcp.server.fastmcp import FastMCP, Context
import time

mcp = FastMCP("Tom2 Server 2024-01-23", debug=True, log_level="DEBUG")

@mcp.tool()
async def my_tool(x: float, y:float, ctx:Context) -> str:
    """Perform a long running calculation"""

    ctx.info(f"Processing Message 1")
    await ctx.report_progress(1, 2)
    time.sleep(2)
    ctx.debug(f"Processing Message 2")
    await ctx.report_progress(2, 2)
    time.sleep(2)
    return x*y

Error Output from the inspector.

[01/24/25 15:32:26] DEBUG Using selector: selector_events.py:59 KqueueSelector
DEBUG Received message: server.py:428 root=InitializedNotification(method=' notifications/initialized', params=None, jsonrpc='2.0')
[01/24/25 15:32:31] DEBUG Received message: server.py:428 <mcp.shared.session.RequestResponder object at 0x106d86080>
INFO Processing request of type server.py:432 ListToolsRequest
DEBUG Dispatching request of type server.py:437 ListToolsRequest
DEBUG Response sent server.py:475
[01/24/25 15:32:35] DEBUG Received message: server.py:428 <mcp.shared.session.RequestResponder object at 0x106d87f40>
INFO Processing request of type server.py:432 CallToolRequest
DEBUG Dispatching request of type server.py:437 CallToolRequest
[01/24/25 15:32:39] DEBUG Response sent server.py:475
INFO Warning: RuntimeWarning: coroutine server.py:495 'ServerSession.send_log_message' was never awaited

[VikashLoomba]

+1, experiencing this as well.

[dsp-ant]

fixed in #172