Btw, claude code is a lot better at graphviz than mermaid! I have been using it a lot for architecture designs.

I just experimented and it seems like mermaid has much better support everywhere, including gitlab and github, graphviz seems to be mostly forgotten.

Are you sure it is better at graphviz?

This was my conclusion, too! Over time as agentic coders get better at handling higher-complexity tasks, this kind of bracing will become less and less necessary.