I’m finding more issues. For example in the page on custom behavior (Create Custom NPC Behavior) it says " The focus_interface is part of the fort_character interface, and you can retrieve it using GetFocusInterface[] ."
But from what I understand of the digest, the focus_interface is actually part of the AI module, it can be used with a character controlled by an NPC but not a character controlled by a player.
Happy to report more issues but making a new post for each of them seems very inefficient. It should be an editing pass on the pages, not individual bug reports, imho.