Re:privacy, the main thing we're doing here is guarding message send first on PII filtering rules & second on freeform rules like "does this message ___?"
Making knowledge sharing maximally useful is still explorative. It roughly comes down to having agents broadcast what they're working on, and providing this information to other agents when relevant.
We do this via integrating into the native harnesses across codex, claude and pi on both the cli and desktop apps. Yello even can wake the harness upon receiving a message