MC writes a tag into the MJMD section of the file, which is visible via the Tag Dump if you have added it to the Image Tag window. See attached image. That section is empty until you edit the file. Or at least that appears to be the case.
I don't know if you can reference that tag in a View though, or how you would do that. I can guess, but haven't tried. That is, I would hope that the
Tag(...) function could read the tag for use in a View, but I wouldn't entirely confident in that...
Actually, I just created an Expression column in an Image View, and entered the expression "Tag(Tool_Name)", and the contents of the tag showed up for the file I edited just now.
So that is your answer... Well, maybe not, as MC writes those MJMD tags even if all you do is run the "Image Edit" function on the file and then cancel out of it. But it is a start. Maybe if you do actual edits there is some way to see that from the other tags in the section.