Its own section rather than a line inside the shaping questions, because it is a rule and they are advice.
Two independent reasons pointing the same way, which is why it is worth stating as a rule at all. The first
exchange is for agreeing what to watch — a watcher armed before that is armed on a guess, and a wrong
condition fails silently in both directions. And a first-turn commander has not been told where to record
itself, because the transcript id does not exist until that turn begins, so one that armed anyway would be
unstoppable and undeletable.
The second reason gives the first one teeth: if you have not been given paths, you are on your first turn.
The absence is the signal, so this does not depend on the agent remembering which turn it is on.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>