· Agents
One session asks another, mid-turn
A running session can put a question to another session and use the answer without either of them being restarted.
Two sessions working in the same space frequently hold halves of one answer. Without a channel between them, the only way to combine those halves is a person copying text from one pane to the other.
Interjection gives one session a way to ask another while its own turn is still running. The question and the answer both land in both transcripts, so neither is a black box to the other afterwards.