[Bug]: Test MCP input fields are always as string

[exalsch]

Platform

Windows

Version

1.8.4

Bug Description

MCP tool call expects integer for a field (I have put 1 as there as input of course) but it get's send as string. Result: Error: MCP error -32602: MCP error -32602: Invalid arguments for tool list-calendars: [ { "code": "invalid_type", "expected": "number", "received": "string", "path": [ "top" ], "message": "Expected number, received string" } ]
It works fine when it get called during chat via the LLM.

Additional Information

No response

[femto16]

I can confirm that I'm experiencing the same issue.

Platform

Windows

Version

1.8.4

Bug Description

It seems to occur with FastMCP (https://github.com/jlowin/fastmcp) v2.12.2 ,
but not with the MCP Python SDK (https://github.com/modelcontextprotocol/python-sdk) v1.13.1.