{
  "$id": "https://targetspace.ai/platform/schemas/evidence-cost.schema.json",
  "title": "EvidenceCost",
  "type": "object",
  "description": "Per-axis disclosed costs. Reported per axis, never collapsed into one universal scalar.",
  "required": [
    "axes"
  ],
  "properties": {
    "axes": {
      "type": "object",
      "properties": {
        "privacy_exposure": {
          "type": "number",
          "minimum": 0,
          "maximum": 3
        },
        "user_burden": {
          "type": "number",
          "minimum": 0,
          "maximum": 3
        },
        "consent_burden": {
          "type": "number",
          "minimum": 0,
          "maximum": 3
        },
        "hardware_cost": {
          "type": "number",
          "minimum": 0,
          "maximum": 3
        },
        "compute_storage": {
          "type": "number",
          "minimum": 0,
          "maximum": 3
        },
        "latency": {
          "type": "number",
          "minimum": 0,
          "maximum": 3
        },
        "missingness_maintenance": {
          "type": "number",
          "minimum": 0,
          "maximum": 3
        },
        "institutional_ethical_risk": {
          "type": "number",
          "minimum": 0,
          "maximum": 3
        }
      }
    },
    "units_note": {
      "type": "string",
      "description": "prototype uses ordinal 0-3 per axis; production discloses measured units per axis"
    }
  }
}