Very interesting. Have to admit, I assumed Godot was just out of the realm of agentic dev. I decided to actually build a game a few months ago, and went with Raylib (with C#), and it worked out pretty well (https://github.com/alexwlsnr/neo-arena)
I had assumed with the complex mix of scripts and the scene graph in Godot wouldn't be a good fit (personally trying and failing to make games in it by hand in the past may have been a factor)
Perhaps I'll give this approach a go if inspiration strikes!
fyi that link is dead, maybe the repo is set to private?
for what it's worth I have been building a game with godot and using gemini flash and pro to help. it has no trouble editing gd script and scenes. so far it hasn't failed in anything i asked it to do