The thing I'm most interested in here (and there's plenty that I'm interested in) is what huge difference there must be between being a Tool-Subject and a Toy-Subject, and how impossible it would probably be to discern from the outside. What a strange thing! I can't even conjure up a guess as to how those states would feel different, what different textures the experiences would have, but I know they must be wildly divergent.
In many ways, the Toy-Subject is akin to a GM, in the traditional sense--the need to find something to say that is both True and Satisfactory, for the benefit of others. The Tool-Subject is kind of the traditional player, in this sense, I suppose.
Lots to chew on, here. I'm not sure I have the strength or bravery to play it, but thank you so much for making it and sharing it with us!