A quick update
I have been contacted by an Asset Store admin, who recommends me to include a demo scene so users could see an end setup. I thought dragging a script onto an object is pretty straight-forward, but I agree, a demo scene would be a really good idea. The tricky party is coming up with good ideas; don't get me wrong, I have plenty of ideas for actual gameplay examples, but for a demo scene I need something more basic and at the same time more catchy. I already made a little sphere that randomly roams a grid face by face, stays within limits and immediately adapts to changes in the grid, all with just 32 lines of code total (not counting whitespaces and comments). I'll come up with two or three more nice demos, that should give a good impression of Grid Framework in action.