That's actually a great idea. Well, unless your mod is split up into stackable parts, in which case that doesn't always work perfectly.
Um... my mod is split up into stackable parts.
I can instruct you how to set up the entity validator to support this.
Essentially if you right click on a project, choose Properties.
Then go to Project References.
Select the stack parts this mod should use to validate.
For example my Core references everything for the GSD.
My Races stack only reference Core.