{
  "unit": "host-window and calendar day",
  "development": "2026-03-01/2026-03-04 inclusive",
  "test": "2026-03-05/2026-03-07 inclusive",
  "office_hosts": [
    "host_off_01",
    "host_off_02",
    "host_off_03",
    "host_off_04",
    "host_off_05",
    "host_off_06"
  ],
  "server_hosts": [
    "host_srv_01",
    "host_srv_02"
  ],
  "leakage_controls": [
    "No random row split inside one labeled event",
    "Hour of day and host alias are not model features",
    "Train and test unusual-shape / NXDOMAIN events use different hosts",
    "Train and test new-service events use different registered names",
    "Office and server robust baselines are fit separately"
  ]
}