{"date":"2026-09-23","from":{"k":"integration","s":"patterns","n":"group chat chained-event gates across sessions > firing the trusted send once the SENDER observes the draft appends the message (the UI-enablement gate, both arms)"},"to":{"k":"integration","s":"patterns","n":"group chat chained-event gates across sessions > firing the send once the SENDER observes the draft appends the message (the UI-enablement gate, both arms)"}}