Eric

icon location Cambridge, UK icon location Research Engi-bear リサーチ＝エンジベア

Results 1 issues of Eric

[BUG] MCP Tool input_schema not valid JSON Schema 2020-12; OpenAPI fields leak into tool schemas

1 comment

### Description When exposing FastAPI endpoints via FastAPI-MCP, some clients (Claude Code) reject the tool list with: ```text API Error: 400 {"type":"error","error":{"type":"invalid_request_error","message":"tools..custom.input_schema: JSON schema is invalid. It must match JSON...

bug