{
  "schema_version": "1.0",
  "rule_code": "risk.travel.multi_city_reason_required",
  "name": "多城市行程需说明",
  "enabled": true,
  "risk_dimension": "multi_city_itinerary",
  "ontology_signal": "multi_city_itinerary",
  "evaluator": "multi_city_reason_required",
  "applies_to": {
    "domains": ["travel"]
  },
  "inputs": {
    "reason": "claim.reason_corpus",
    "cities": ["attachment.cities", "item.item_location"]
  },
  "params": {},
  "outcomes": {
    "pass": { "severity": "none", "action": "continue" },
    "fail": {
      "severity": "medium",
      "action": "warn"
    }
  },
  "metadata": {
    "owner": "风控与审计部",
    "stability": "platform_builtin",
    "source_ref": "常用risk.txt / 一、出差类 / 绕道出行、行程不符",
    "updated_at": "2026-05-19"
  }
}