Tamaat AI is deliberately constrained, and the constraints are the point. When it gives you a number, that number came from your project's data. When the data isn't there, it says so.
Answers come from your project, not from general knowledge. It queries the layers and attributes actually in the open project. It doesn't fill gaps with plausible-looking values.
It declines rather than guesses. If your project doesn't hold what the question needs, you get told that instead of an answer that looks fine and isn't. If the question is ambiguous, it asks.
It won't invent a value. It won't expand a code it isn't sure of, and it won't estimate a figure it didn't actually compute.
It won't change your project on its own. The one thing it can add is a saved result, and only when you click "Save as layer". It will never tell you it saved or changed something by itself.