You'll notice
Ultrareview now warns how much usage credit you have left before it runs
What
Before running an ultrareview (a deep, multi-agent code review), Claude Code now checks your remaining usage credits and, when they're getting low, shows a line like "About $X of usage credits left. A review usually uses about $Y and stops if credits run out," or "Less than $1 of usage credits left..." if you're nearly out.
Why
Ultrareview can use a meaningful chunk of usage credits, so this warns you up front instead of letting a review stop partway through because it ran out of budget.