Copilot CLI has no ask_user/elicitation tool for custom agents (confirmed
via docs: only execute/read/edit/search/agent/web/todo aliases exist).
The only way to get a live human reply is ending the agent's own turn
with plain text and waiting for the next user message. Conductor was
dumping every design question as one big numbered markdown block in a
single turn, which reads as a form, not a conversation.
Now conductor asks exactly one question per turn (plain text, numbered
candidate answers, one Recommended + Why, an Other: option, a Required
flag), ends its turn, waits for the real reply, then asks the next one.
Decisions are only persisted to decisions.md after the last question is
answered.