Solved Help with checking if player has a item in offhand or in inventory

[SquidR]

how can i make it so that skript detects if a player has an item in offhand or in inventory, i've tried
if player's offhand is stone named "&6Test":
add flint named "&7Pebble" to player's inventory
and if player has stone named "&6Test" in inventory:
but its not working

 

[KazumiSkripts]

You require a trigger or event for it to work, you need to start off with a trigger.

every 1 second:
  loop all players:
    if player's offhand is stone named "&6Test":
      give loop-player 1 flint named "&7Pebble"

vice versa, you can use the same loop to check if it's in their inventory.

every 1 second:
  loop all players:
    if player's inventory contains stone named "&6Test":
      give player 1 flint named "&7Pebble"