Thanks! I started with the prompt from https://www.aiformortals.co/blog/sonnet-5-5#test-1-make-the-... which helped a lot in creating a general direction. The default output otherwise is that fast paced, epilepsy inducing AI slop that doesn't explain anything.

It helped to give it access to the app code and ability to screenshot its UI and interact with it.

I mostly list the features I want showcased because I know best what needs demoing and what looks good on video, and then let it do a full video. There's still a lot of slop on the first try but it's a much better start than what I'd do by hand.