Mascot engine

Gravity, squash and stretch, and perch-to-perch leaps between real elements on the page, plus a face that reacts to what's on the page, grab-and-fling, and a "wanna fight?" mini game. What it does next is a small utility AI: fatigue, boredom and a memory of where it has already stood score every option, and it picks among the best few. Every few seconds it also asks Jev, TypeSafe's decision model, what fits the moment, so it goes to look at what you hover, keeps quiet while you read, and picks the line that suits the hour. Physics, perches, expressions, interactions and the brain each live in their own pure module, composed by one state machine reducer and covered by Vitest, down to minutes-long simulated visits.