{
  "$schema": "http://json-schema.org/draft-07/schema#", "type": "object",
  "required": ["parent-workflow-id", "child-workflow-id", "product-decision-id", "direction-input-brief-sha256", "selected-direction-ref", "selected-direction-sha256", "winner-prototype-ref", "winner-prototype-sha256", "visual-thesis", "interaction-model", "design-token-contract", "acceptance-receipt-ref"],
  "properties": {
    "parent-workflow-id": {"type": "string", "minLength": 1}, "child-workflow-id": {"type": "string", "minLength": 1},
    "product-decision-id": {"type": "string", "minLength": 1}, "direction-input-brief-sha256": {"type": "string", "pattern": "^[0-9a-f]{64}$"},
    "selected-direction-ref": {"type": "string", "minLength": 1}, "selected-direction-sha256": {"type": "string", "pattern": "^[0-9a-f]{64}$"},
    "winner-prototype-ref": {"type": "string", "minLength": 1}, "winner-prototype-sha256": {"type": "string", "pattern": "^[0-9a-f]{64}$"},
    "visual-thesis": {"type": "string", "minLength": 1}, "interaction-model": {"type": "object", "minProperties": 1},
    "design-token-contract": {"type": "object", "minProperties": 1}, "acceptance-receipt-ref": {"type": "string", "minLength": 1}
  }
}