If you are talking about the section towards the end of the book, it looks a lot like an HTN planner (Hierarchical task network).
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If you are talking about the section towards the end of the book, it looks a lot like an HTN planner (Hierarchical task network).
I think you are right.
The way I use it, I only let the tasks (called "Goals" in the book) do limited planning while they are executing. I prefer to plan most before setting them in motion.