One interesting thing is that Claude will not tell me if I'm following the wrong path. It will just make the requested change to the best of its ability.
For example a Tower Defence game I'm making I wanted to keep turret position state in an AStarGrid2D. It produced code to do this, but became harder and harder to follow as I went on. It's only after watching more tutorials I figured out I was asking for the wrong thing. (TileMapLayer is a much better choice)
LLMs still suffer from Garbage in Garbage out.