You can't SoH something that's being worn by a target, as that falls under the rules for Grabbing Items via the Disarm action. This build will be able to swipe everything they've got in their pockets, from metamagic rods to wands to spell component pouches to coins, but it can't get the ring on their finger or the cloak on their back, as both require the Disarm action, and the ring can't even be disarmed unless you pin them first.