I think I understand what it does and it looks interesting and appealing. My team would need Ruby support. Not sure if you'll be able to connect the graph properly in Ruby, but it might still be useful.
Beyond that, if my MR/PR has two (or more) logical commits, will the tool support reviewing each in isolation? Often times, I will do a refactor in the first commit, and have a second commit with the new feature that makes use of the refactor. Reviewing it all together can result in muddying the water.
Another thought: if I edit a function to call a different function defined elsewhere in my codebase, is there a way to include that functions definition into the canvas (either by the author in preparation for a reviewer, or by the reviewer) to facilitate verifying the behavior across this new boundary?
You can review each commit in isolation! Also, you can CMD+Click on that new function and it should create a view of that function on the canvas, along with a connector.
