I'm wondering if you could add a way to remove a modifier from a tool after it gains it. This would be useful if you get a modifier that you don't want on a particular tool. eg. Autosmelt on a pickaxe can be very annoying...being able to remove the last added modifier would be nice.

Autosmelt is a material and thus cannot be applied randomly, perhaps you mean silky or another similar one.

In any case, last I checked there are no random modifiers applied, just a modifier slot opened so you may choose one yourself

Ah...that is different than it used to work (better IMO). Great.