The field test: does the limit reload?

GEX is a model. It can get the sign wrong on a strike, and the displayed gamma flip can be off by twenty points. So you need a purely order flow test to tell, live, a player who is defending from a hedging flow that is consuming. That test exists, and it is simple.

The principle

A discretionary player reloads. A fund that wants to buy 1,500 ES at a level posts, gets eaten, posts again at the same price, gets eaten, posts again. His iceberg absorbs more than it shows. The intent is visible in the repetition.

A hedging flow does not reload. The market maker defends nothing: he consumes the available liquidity to bring his delta back to zero. He has no reason to post a limit at a level, let alone to repost it. A hedge, in your book, is aggression in small clips, or a limit very close to price that disappears as soon as it is filled.