Agents lose context because the session is the memory. I keep the decision outside the session, then hand it to the next MCP client.
I would finish a long chat, close it, and open the editor. The editor’s agent had none of it. I pasted. Then I pasted again the next morning. The pasting was the product, and it was bad.
Where I put it instead
The note lives in the workspace. The next client, whichever one speaks MCP, receives it. I do not need the same vendor on both sides. Cursor in the afternoon and another client at night can read the same note, including what the first agent was told to do.