Dupe Skript (How to not dupe shulkerboxes with blacklisted items)

[XayCraft]

options:
# Permissions
blacklist-permission: xay.blacklist
prefix: [&dDupeSteal&f]

# Messages
permission-message: &cInsufficient Permissions
dupe-message: [&dDupeSteal&f] &7Duped your hand.
inventory-full: [&dDupeSteal&f] &7You do not have enough inventory space.
blacklist-add: [&dDupeSteal&f] &7Added to Blacklist.
blacklist-remove: [&dDupeSteal&f] &7Removed from Blacklist.

# Other
world: world
cooldown: 0 seconds

command /dupe [<number>]:
trigger:
if {blacklisted.items::*} contains type of tool:
send "[&dDupeSteal&f] &3| &3You cannot dupe that item!"
stop
else:
if arg-1 is not set:
add player's tool to player's inventory
stop
else:
if arg-1 is less than 2:
add player's tool to player's inventory
stop
else:
if arg-1 is more than 5:
loop 6 times:
add player's tool to player's inventory
stop
else:
loop arg-1 times:
add player's tool to player's inventory

command /blacklist <text="add">:
trigger:
if player doesn't have permission "{@blacklist-permission}":
send "{@permission-message}" to player
stop
if arg-1 = "add":
add type of player's tool to {blacklisted.items::*}
send "{@blacklist-add}" to player
else if arg-1 = "remove":
remove type of player's tool from {blacklisted.items::*}
send "{@blacklist-remove}" to player


How do I make it so I use the {blacklisted.items::*} and make it search the shulker box for items in "{blacklisted.items::*}" and cancel the dupe command if it detects any

 

[Luke_Sky_Walker]

My idea as to how to do this would be to check within a given interval if ANY player has a shulker box (This could be every second, use a loop). You then check the NBT of the targeted box to see if it contains a blacklisted item (You can do this using SkBee), if it does you could then have your code either remove the shulker box entirely (Easier) or remove the blacklisted item (Prob a bit harder, not sure if it's possible even) from the NBT itself.