The behavior data attribute ai is expected to make scripts usable by NPC AI, but it doesn't appear to work.

I've noticed having a scores behavior attribute, as well having a flags data attribute randomly makes it work, but it's really not clear. It appears arbitrary, under some unclear prerequisites. It looks like some chain of events (having a scores attribute, a ai = true data attribute, and/or a flags data attribute) leads to a condition being met, which finally makes a behavior AI-compatible.

Unclear because for some reason, upon undoing the changes that led to the behavior being AI-compatible, the behavior remains AI-compatible...

Really needs investigation.