@minecraft/creator-tools/data/forms/biome/minecraft_creature_spawn_probability.form.json

Minecraft Creator Tools command line and libraries.

{
  "fields": [
    {
      "id": "probability",
      "title": "probability",
      "description": "Probabiltity between [0.0, 0.75] of creatures spawning within the biome on chunk generation.",
      "dataType": 3,
      "validity": [
        {
          "comparison": "<=",
          "value": 0.75
        }
      ]
    }
  ],
  "description": "Probability that creatures will spawn within the biome when a chunk is generated.",
  "title": "Creature Spawn Probability",
  "id": "minecraft:creature_spawn_probability"
}