command saveinv:
    trigger:
        set {inv} to json from player's inventory

command listinv:
    trigger:
        map {inv} to {_inv::*}
        loop (indices of {_inv::contents::*}):
            if {_inv::contents::%loop-value%::*} is set:
                set {_item} to {_inv::contents::%loop-value%::*}'s form parsed as skript-type
                give {_item} to "player's name" parsed as player