I personally feel most graph patterns are just easier implemented using functions unless the graph has some other purpose like observability or even just visualization also those can always be added ;)

I prototyped a similar system at a hackerthon last year: https://github.com/Davidiusdadi/obsidian-node-canvas

Your docs would be more readable if you made the code blocks just wide enough so that the lines don't wrap.

https://pocketflow.ai/ whitepaper link is 404ing btw.