{
  "_说明": "创意盯盘判定规则。所有金额单位：元；比例均为 0-1 小数。可按你的投放打法调整，改完重新跑一次 run.mjs 即可。",
  "sample": {
    "_说明": "样本门槛：低于此数据量不做成本判断，只标『样本不足』",
    "min_impressions": 800,
    "min_cost_yuan": 30,
    "min_conversions": 2
  },
  "volume": {
    "_说明": "跑量判定：创意消耗占单元比例低于 low_share，且消耗不到单元单创意均值的 dead_ratio，视为不跑量",
    "low_share": 0.05,
    "dead_ratio": 0.4,
    "good_share": 0.15
  },
  "cost": {
    "_说明": "成本判定：cpa / 目标cpa 的倍数",
    "over_ratio": 1.3,
    "critical_ratio": 1.6,
    "good_ratio": 0.85
  },
  "stability": {
    "_说明": "稳定性：近 N 天指标变异系数（标准差/均值），越大越不稳",
    "cpa_cv_warn": 0.4,
    "cost_cv_warn": 0.6
  },
  "unit": {
    "_说明": "单元层级：头部创意消耗集中度超过该值，提示过度依赖单创意",
    "top1_share_warn": 0.6,
    "min_creatives_alive": 3
  },
  "weights": {
    "_说明": "综合健康度权重，三项相加=1",
    "volume": 0.4,
    "cost": 0.4,
    "stability": 0.2
  },
  "realtime": {
    "_说明": "每小时实时盯盘卡的标红阈值（用户口径）：转化成本>200 或 有效成本>350 标红；0转化/0有效同样标红",
    "cpa_warn": 200,
    "valid_cost_warn": 350,
    "min_valid_cost_yuan": 30
  }
}