This is really great! I have a few personal skills I've been maintaining for generating and rendering mermaid diagrams but the overall coverage here is way beyond what I was doing. ++ to visuals being a key missing tool in a lot of these harnesses.

Not sure how you're testing the output of this but I posted about my tool i've been working on earlier today https://news.ycombinator.com/item?id=49274758 and spun up a quick (very basic) test suite example for this:

https://github.com/dynobox/examples/blob/main/.agents/skills...