The new App supports this when you subscribe to paths in your state tree. It'll tell you: of the keys you're tracking, heres the adds, edits, and deletes. At mutation time.

Redux logger indeed shows you all this info. My goal with this is not to show you everything, but just what matters.

Debugging is a very personal thing. Hell, I remember using MessageBeep() in the 90's to help me debug. Whatever works!