{
  "$schema": "urn:prism:schema:v1:spec",
  "title": "Satisfaction (vertical)",
  "data": {
    "name": "kpi",
    "values": [
      {"metric": "CSAT", "score": 78}
    ]
  },
  "mark": {
    "type": "bullet",
    "orientation": "vertical",
    "bands": [50, 75, 100],
    "comparative": 72,
    "target": 90
  },
  "encoding": {
    "x": {"field": "metric", "type": "nominal"},
    "y": {"field": "score", "type": "quantitative"}
  }
}