Bro just have the same problem here. I had a cowork skill who every morning drafted emails for me, and it was amazing. Suddenly it stopped working and generated separed messages... Claude said:
"The Gmail MCP connector used in Cowork is missing the threadId parameter in the create_draft tool"
It looks they intentionally removed it. I'm really frustrated tbh
"The Gmail MCP connector used in Cowork is missing the threadId parameter in the create_draft tool"
It looks they intentionally removed it. I'm really frustrated tbh