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title Keyword Argument #985
Description
Initial Checks
- I confirm that I'm using the latest version of MCP Python SDK
- I confirm that I searched for my issue in https://github.com/modelcontextprotocol/python-sdk/issues before opening this issue
Description
I had written a tool to compute the BMI and Fetch Weather (similar to tool call in GitHub). Provided keyword title for each tool call @mcp.tool(title="BMI Calculator"). When I tried to ran the command "mcp dev file.py", encountered an error TypeError: FastMCP.tool() got an unexpected keyword argument 'title'.
Without the title argument, the command works fine, functionality too.
Example Code
@mcp.tool(title="BMI Calculator")Python & MCP Python SDK
MCP version 1.9.4
Python version 3.11
Activity
Kludex commentedon Jun 19, 2025
The parameter is
name.BhuwanPandey commentedon Jun 19, 2025
@Kludex
Yesterday, while following instruction from documentation, I also noticed this issue. To confirm this, I look at some latest PR but still they are including
title. #972 . I don't know.If parameter is
name. then, Documentation should be update accordingly.Kludex commentedon Jun 19, 2025
Ah, sorry. It's a new thing.
Yep,titleis missing.We need to make a release. I think there's a release coming today.