[
  {
    "id": "encoding-shared-domain",
    "type": "consistent",
    "selector": "[data-chart]",
    "keyAttribute": "data-group",
    "properties": [],
    "attributes": ["data-min", "data-max"],
    "severity": "error",
    "designRules": ["DR-001"],
    "reason": "Within each absolute-magnitude comparison, renderer-declared domains should match. Inspect SVG marks independently."
  }
]