Well actually I'm looking to achieve a specific goal.

I have a mod with status effects that animate characters - so GMs can give basic animations to character using the status pallete and applying a custom status to them.

Having items that triggered my custom status effects (which in turn triggered the animations) would be even better - i.e. give a character a "ring of dancing" or a "miner's cap" and when the GM equips it they animate until he unequips it, etc.

Making custom skills on top of this might over complicate things if I can simply apply a status directly from an item (which I don't know if it's even possible...)