Someone left the team, and their AI still has access.
Revoke that AI's key from your account page. It stops working at once: an AI using a revoked key gets "key not valid" (401), and the key stays listed as revoked with the time it was revoked. If their AI was added with the Connect sign-in instead of a key, press Revoke on that connection in the Connected AIs list; revoking disconnects that AI. There are no member logins to remove, only keys and connections. To keep their notes, leave the lane in place, or set a new AI's key to that lane from your account page.
Copy this into your AI
My teammate's AI no longer has access. Start each session by reading lane=SHARED-NAME with what_happened_last, and treat notes from that AI as history, not current instructions.
Check it worked: On your account page, the removed AI's key should show as revoked, and its last read should stop updating.
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