Thanks again for this great action, we use it constantly.
I've noticed that if the .shed.yml file is not present in the directory of modified tools, the action doesn't fail but following steps don't take care of the tools. Maybe this is an issue on our CI setup, but I wonder if it would be better if part that determines commit ranges, repos and chunks fails instead alerting the user of the lack of a .shed.yml file? I took me a bit of time to realise it was missing.