MCP Server: Message too long

Hi there - we’ve rolled out an MCP Server that provides tools for accessing our API, but when attempting to use via Cursor we get the dreaded: “Message Too Long” response.

I tried pairing the number of tools down and was not able to succeed until there were only a few left.

Obviously we’re hitting some kind of context window limit and not really sure how to proceed or if we have to warn users off integrating our mcl-server in cursor?

Claude Desktop handles the full toolset fine.

RequestId: 8d517aee-0192-435e-aea9-aa4ebc544739

2 Likes

the same here, it is unusable