After some more reading, particularly the Drexler CAIS report, I realize I was more confused than I thought about Tool vs Agent AI. I think I've resolved it, but I'd appreciate feedback. Would the below be correct?
"Most sophisticated software behaves like both a Tool and an Agent, at different times. Google Maps reports possible routes like a tool, but it searches for paths to maximize a utility function like an agent. DeepMind might ultimately select the move that maximizes its winning probability, but it follows some set rules in how it fr...
Thanks to all! Very useful reading, particularly Gwern.
Didn't realize that, but it makes complete sense. Thanks.