This bypasses the stupid minehut system, i can't understand what's going on with them but here ya go
options:
effectToken: "!"
packet event play_client_chat:
cancel event
set {_t} to field 0 of event-packet
if first character of {_t} = {@effectToken}:
replace first {@effectToken} in {_t} with ""
send "&c| &7Executing effect command: &f(&7&o%{_t}%&f)" to event-player
parse effect {_t} from event-player
stop
broadcast "&c%event-player%: &f%colored {_t}%"
https://www.spigotmc.org/resources/skript-bypass.106908/
Requires:
-Skript
-Skript-Packet
-ProtocolLib
Custom Plugins
