I'm very intrigued by the concept. It takes the PbtA philosophy to a completly different place, and I like it there! A really cool game.
I was wondering though: there is an example in the text, of a character without any violent actions in his Kits who ends up having to face violence, and I asked myself what that would look like. How does that player/character engage with the situation (or with any other high stakes circumstance that they don't have a corresponding action for)?