Conditions

if the argument is not alphanumeric:
    send "Invalid name!"

player can fly

block can hold 200 cobblestone
player has enough space for 64 feathers

if the player can't see the player-argument:
    message "The player %player-argument% is not online!"

chance of 50%:
    drop a diamond
chance of {chance}% # {chance} between 0 and 100
chance of {chance} # {chance} between 0 and 1

the clicked block is a stone slab or a double stone slab
time in the player's world is greater than 8:00
the creature is not an enderman or an ender dragon

block contains 20 cobblestone
player has 4 flint and 2 iron ingots
{list::*} contains 5

# make players use their potions of fire resistance whenever they take any kind of fire damage
on damage:
    damage was caused by lava, fire or burning
    victim is a player
    victim has a potion of fire resistance
    cancel event
    apply fire resistance to the victim for 30 seconds
    remove 1 potion of fire resistance from the victim
# prevent mobs from dropping items under certain circumstances
on death:
    entity is not a player
    damage wasn't caused by a block explosion, an attack, a projectile, a potion, fire, burning, thorns or poison
    clear drops

on click:
    if event is cancelled:
        broadcast "no clicks allowed!"

{teams::%player's uuid%::preferred-team} is not set
on damage:
    projectile exists
    broadcast "%attacker% used a %projectile% to attack %victim%!"

target entity has ai

if the player has custom weather:
    message "Your custom weather is %player's weather%"

player's tool has custom model data

if player has metadata value "healer":

player has permission "skript.tree"
victim has the permission "admin":
    send "You're attacking an admin!" to attacker

player has played on this server before
player hasn't played before

if the player has a resource pack loaded:

if the targeted armor stand has the scoreboard tag "test tag":

if the last spawned creeper is going to explode:
    loop all players in radius 3 of the last spawned creeper
        send "RUN!!!" to the loop-player

if {villager-buddy::%player's uuid%} is not dead:

on shoot:
    while the projectile is alive:

player is banned
victim is not IP-banned
"127.0.0.1" is banned

player's held item is a block
{list::*} are blocks

if clicked block is redstone powered:
    send "This block is well-powered by redstone!"
if clicked block is indirectly redstone powered:
    send "This block is indirectly redstone powered."

on damage of player:
    victim is blocking
    damage attacker by 0.5 hearts

# increased attack against burning targets
victim is burning:
    increase damage by 2

if the last spawned creeper is charged:
    broadcast "A charged creeper is at %location of last spawned creeper%"

steak is edible
player's tool is edible

player's inventory is empty

tool of the player is enchanted with efficiency 2
helm, chestplate, leggings or boots are enchanted

wood is flammable
player's tool is flammable

player is not flying

on right click on furnace:
    if player's tool is not fuel:
        send "Please hold a valid fuel item in your hand"
        cancel event

player is holding a stick
victim isn't holding a sword of sharpness

on explosion prime:
    if the explosion is fiery:
        broadcast "A fiery explosive has been ignited!"

on block break:
    if event-block is interactable:
        cancel event
        send "You cannot break interactable blocks!"

target entity is invulnerable

target entity is leashed

if chunk at {home::%player's uuid%} is loaded:
if chunk 1, 10 in world "world" is loaded:
if world("lobby") is loaded:

vector of player's location is normalized

player's tool is occluding

player is online
player-argument is offline

if player's targeted block is passable

player is poisoned:
    cure the player from poison
    message "You have been cured!"

player is riding a saddled pig

target entity is riptiding

script is loaded
script "example.sk" is loaded

target entity is silent

# cut your enemies' throats in their sleep >=)
on attack:
    attacker is holding a sword
    victim is sleeping
    increase the damage by 1000

command /slimey:
    trigger:
        if chunk at player is a slime chunk:
            send "Yeah, it is!"
        else:
            send "Nope, it isn't"

# prevent mobs from seeing sneaking players if they are at least 4 meters apart
on target:
    target is sneaking
    distance of target and the entity is bigger than 4
    cancel the event

grass block is solid
player's tool isn't solid

player is not sprinting

player is swimming

on damage:
    if victim is tameable:
        cancel event

player's tool is transparent.

if event-item is unbreakable

player is wearing an iron chestplate and iron leggings
player is wearing all diamond armour

if server is whitelisted:
if player is whitelisted

player is in "world"
argument isn't in world "world_nether"
the player is in the world of the victim

tool is of type {selected type}
victim is of type {villager type}

player is not on ground

on chat:
    if message partially matches "\d":
        send "Message contains a digit!"
    if message doesn't match "[A-Za-z]+":
        send "Message doesn't only contain letters!"

on shoot:
    send "Boing!" to all players if projectile can bounce

PvP is enabled
PvP is disabled in "world"

on resource pack response:
    if the resource pack wasn't accepted:
        kick the player due to "You have to install the resource pack to play in this server!"

if the argument starts with "test" or "debug":
    send "Stop!"

command /command-with-cooldown:
    trigger:
        {command::%player's uuid%::last-usage} was less than a minute ago:
            message "Please wait a minute between uses of this command."
            stop
        set {command::%player's uuid%::last-usage} to now
        # ... actual command trigger here ...

is thundering
is raining in "world" or "world2"