Using the urge jar as a type 1 diabetic

I have type 1 diabetes and sometimes need to use Smarties or other quick-acting sugars to correct low blood sugars. I usually correct them by suspending my insulin pump, but so many factors affect blood sugar that this doesn’t always work. With the urge jar steps, Brooke says to write down exactly what you’re going to eat tomorrow, being very specific, and to only and exactly eat what you wrote.

How do I satisfy those steps when I can’t predict my blood sugars 24 hours in advance (fact) and may need (legit need) to use “unplanned” food/sugar to prevent or correct a low blood sugar?