Yeah, I think you’re right to be skeptical. In theory you could feed an AI a Twine game’s HTML, but in practice it probably wouldn’t work very well. Twine games are full of branching paths, variables, and bits of logic that depend on player choices. That kind of structure is hard for a model to track or “play through” accurately.
Even if the AI could read all the passages, it would still run into token limits. Tokens are basically the chunks of text an AI can handle at once. Every word, or even part of a word, counts toward that limit, sort of like memory space. Once you go over it, the AI can’t “see” or process the rest. For a big Twine game, that means it would probably lose track of earlier sections or skip over details.
It might be able to map out some of the story structure or summarize the overall plot, but a full, accurate walkthrough of a large game isn’t really possible right now.