[Employee Relations] How do you handle complaints about tone, respect, or communication when no one violated a clear policy?

I do not assume those issues are minor just because they do not fit neatly into a formal policy violation. A lot of retention, trust, and manager-credibility problems start in exactly that space. At the same time, I also do not want to inflate every unpleasant interaction into formal misconduct when the right answer may be coaching or expectation-setting.

So...