Invalid argument on query

[gsouf]

Hello,

thank you this nice tool to browse the openapi doc :)

I found out that when asking claude code to look specifically for a keyword to find an endpoint from the openapi, it goes throught this MCP's tool but fails with the following error:

● openapi - search-schema (MCP)(query: "email")
  ⎿  Error: MCP error -32602: Input validation error: Invalid arguments for tool search-schema: [
       {
         "code": "invalid_type",
         "expected": "string",
         "received": "undefined",
         "path": [
           "pattern"
         ],
         "message": "Required"
       }
     ]

Then it made a second attempt replacing "query" with "pattern":

● openapi - search-schema (MCP)(pattern: "email")

That worked that time.

Seem that claude code is sending an argument that is not accepted by the mcp server. I have never had to deal with MCP before though so I can't tell.

Any idea what could be wrong?