Actions

Colours. Anywhere text is shown (chat, titles, sidebars, the tab list, item names, holograms) three kinds of colour work:

send "&aGreen, &lbold&r and plain again"
send "&#ff5555Any colour by its hex number, or <#55ffff>written like this"
send "<gradient:#ff5555:#ffaa00:#55ff55>A gradient through three colours</gradient>"
set tab name of player to "<gradient:#4ade9f:#6aa9ff>&l%player.name%</gradient>"

• &0 to &9, &a to &f, &l bold, &o italic, &n underline, &m strikethrough, &k scrambled, &r back to normal.
• &#rrggbb and <#rrggbb> are the same thing: any of sixteen million colours. They need Minecraft 1.16 or newer on the player's side, as every supported server has.
• <gradient:#from:#to>text</gradient> shades the text letter by letter. Give more colours for more stops. A format code inside, such as &l, applies to the whole gradient after it.
• uncolored <text> takes all of them out again.

send and broadcast translate & colour codes (&a, &l, ...). Inside a string, write \" for a quote, \\ for a backslash and \n for a line break. On-screen text, GUI, world, async and Discord statements are described in their own sections below.

Giving items. give puts an item in a player's inventory; anything that does not fit is dropped at their feet. The recipient may be written first or last:

give player 1 diamond sword named "&6Excalibur" with lore "&7A legendary blade", "&7Forged in fire."
give 16 bread to player
give 3 golden apple to all players
give {%player%.backpack.item} to arg.1

The item is anything described under Value types: plain words, a variable holding an item, or text holding a material name ("%{_material}%"). Up to 2304 can be given at a time. Recipient-first works with player and all players; to give to a named player, put them last after to.

Enchantments. After an item's name and lore come its enchantments and two flags:

give 1 diamond sword named "&6Excalibur" enchanted with sharpness 5, fire aspect 2 unbreakable to player
give player 1 stick glowing
set {reward} to 1 bow enchanted with power 3

enchanted with takes one or more enchantments with a level each (1 if left out). Names are Minecraft's own, written as words (fire aspect, protection) and checked when the script loads. Levels above the normal maximum are allowed. unbreakable makes the item never wear out, and glowing makes it shimmer like an enchanted item without being one. All of it is kept when the item is stored in a variable.

Tags and models. Two more things can follow an item:

give 1 blaze rod named "&dMagic wand" tagged "wand" to player
give 1 paper named "&6Ticket" model 12 to player

on right click:
    if tool of player is tagged "wand":
        apply levitation 2 to player for 3 seconds

tagged "<name>" puts a hidden label on the item. It stays with the item wherever it goes, players cannot see it, and an anvil cannot fake it, so it is how a script recognises its own items: <item> is tagged "wand", or tag of <item> for the label itself. player has 1 stick tagged "wand" and remove ... from only count items with that tag, whatever name or lore the item has. model <number> sets the custom model number a resource pack uses to draw the item differently.

Wearing and holding. What a player wears and holds can be read and set directly:

set helmet of player to 1 diamond helmet enchanted with protection 4
set tool of player to 1 stone sword
if helmet of player is not set:
    send "&7You are not wearing a helmet."
delete boots of player
clear inventory of player

Each is written <place> of <who>. Reading gives an item, or unset when the place is empty; set ... to <item> replaces what is there (it is not dropped); delete empties it.

Naming an item once. An item that several lines need can be described once, at the left margin of a file, and then asked for by name wherever an item is expected, in that file or any other:

item magic wand:
    blaze rod named "&dMagic wand" with lore "&7Right-click to cast" glowing

command /wand:
    trigger:
        give player magic wand

on right click with magic wand:
    apply levitation 2 to player for 3 seconds

Under the header goes one line: an item exactly as give takes it. The name is one to five plain words and may not be the name of a Minecraft item. give player 3 magic wand, player has magic wand, player is holding magic wand and slot 5 is magic wand all work, and more can be added for one use: magic wand named "&6Golden wand".

Such an item carries its name as a hidden tag (magic_wand), so it is still recognised after a player renames it on an anvil, and a plain blaze rod is never mistaken for it. on right click with <item>: and on left click with <item>: run only for players holding that item, in either hand; any item can be written there, not only a named one.

Tools. What a player is holding can be worn down, mended and enchanted in place:

damage tool of player by 25
repair tool of player
enchant tool of player with efficiency 5

Clickable messages. A chat message can do something when clicked and show more when the mouse is over it:

send "&a[Go home]" with click command "/home" with hover "&7Teleports you home"
send "&b[Our website]" with click url "https://example.com" to all players
send "&7[Reply]" with click suggestion "/msg %player.name% " to arg.1

The whole message is clickable. Write with before each part, as in the first example; to <who> may come before or after them.

Taking items. remove takes items out of an inventory, and has tests for them first:

if player has 5 diamond:
    remove 5 diamond from player
    add 100 to {%player%.coins}

It takes up to the amount given and simply stops when there is no more, so test with has when the amount matters. remove 1 diamond from all players and remove 1 diamond from arg.1 work too. What comes after from decides the meaning: a variable is a list to take a value out of, anything else is a player. For a player whose name is in a variable, write it as text: remove 1 diamond from "%{_who}%".

Teleporting. teleport player to {%player%.home} or teleport player to 0, 80, 0 in "world" moves a player and keeps the direction they are facing.

Summoning. summon spawns entities at a position:

summon zombie at player's location
summon 3 chicken at event's location
summon iron golem named "&6Town Guard" at 0, 80, 0 in "world"
summon {boss_type} at {arena}

The entity is a Minecraft entity type written as plain words (zombie, iron golem), checked when the script loads, or any value holding a type name. Up to 50 can be summoned at a time, and named gives them a visible custom name.

Who a statement is for. Statements that take a recipient accept player (the player of this trigger), all players, or anything that gives a player name such as %arg.1% or "Alex".