EasyCommandBlocker | Spigot, Waterfall & Velocity [1.8-26.3]

Code (YAML):

# Here you can create different groups to show only certain commands
# in tab completion. You must give the easycommandblocker.tab.<group>
# permission to players for using this option.
# The default group will apply to ALL users that don't have a group permission set.
# Don't remove the default group.
tab :
  # Name of the group.
  default :
    # The priority works to define which group a player must use first if they
    # have more than one group permission. A higher priority means the
    # group will be selected first.
    priority : 0

    # A list of commands to show on tab completion. The command must
    # include the "/".
    commands : [ ]
  vip:
    priority : 1

    # You can add the "extends" option to inherit commands from another
    # group. Doing so allows you to not repeat commands.
    extends : default

    commands :
     - "/home"

# Actions to be executed when a user tries to use a blocked command.
# See the next section to understand how to use actions.
blocked_command_default_actions:
  - 'message : &8[&b&lECB&8] &cYou don''t have permissions to use that command.'
  - 'playsound : BLOCK_NOTE_BLOCK_PLING;10;0.1'
  - 'title : 20;40;20;&cWhat are you doing?;&7Don''t use that command!'

# Whether the plugin should send notifications on join to OP
# players if an update is found
update_notify : true

# Option only in backend server
# Set it to true if you are using ECB in both the proxy and the backend.
is_network : false

# Option only in backend server.
# Set it to true if you are using a 1.12- server or want to add compatibility
# with 1.12- versions.
# Requires ProtocolLib.
# For this option to apply you must restart your server.
legacy_support : false

# If you set this option to true, the list below will serve as a whitelist instead,