Predicate Generator — Build Datapack Condition JSON

Java only

Predicates are Java Edition datapack files. They are not supported in Bedrock. Use them with /execute if predicate mypack:my_predicate.

Namespace

Predicate name

IDmypack:my_predicate

Filedata/mypack/predicates/my_predicate.json

Condition type

Chance50%

Predicate JSON

save to data/mypack/predicates/my_predicate.json

{
  "condition": "minecraft:random_chance",
  "chance": 0.5
}

Use in commands

/execute if predicate mypack:my_predicate run say Condition passed!

The predicate JSON file must be in a loaded datapack at data/mypack/predicates/my_predicate.json before the command will work.