minecraft-bedrock-json-schemas/source/behavior/entities/format/components/is_stackable.json

{
  "$id": "blockception.minecraft.behavior.entities.minecraft.is_stackable",
  "description": "Sets that this entity can be stacked.",
  "type": "object",
  "title": "Is Stackable",
  "additionalProperties": false,
  "properties": {
    "value": {
      "title": "Value",
      "description": "UNDOCUMENTATED",
      "type": "boolean"
    }
  }
}