{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://your-digital-life.org/schemas/activity.schema.json",
  "title": "Your Digital Life calculator activity",
  "type": "object",
  "additionalProperties": false,
  "required": [
    "id",
    "order",
    "label",
    "category",
    "unitLabel",
    "unitHint",
    "step",
    "serverWhPerUnit",
    "totalWhPerUnit",
    "directWaterMlPerUnit",
    "totalWaterMlPerUnit",
    "status",
    "note",
    "deviceMode",
    "deviceNote",
    "sourceIds",
    "systemBoundary",
    "lastReviewed"
  ],
  "properties": {
    "id": { "type": "string", "pattern": "^[a-z0-9]+(?:-[a-z0-9]+)*$" },
    "order": { "type": "integer", "minimum": 1 },
    "label": { "type": "string", "minLength": 1 },
    "category": { "enum": ["AI tasks", "Media and search", "Gaming", "Meetings"] },
    "unitLabel": { "enum": ["prompts", "images", "hours", "daily blocks", "meetings"] },
    "unitHint": { "type": "string", "minLength": 1 },
    "step": { "type": "number", "exclusiveMinimum": 0 },
    "serverWhPerUnit": { "type": "number", "minimum": 0 },
    "totalWhPerUnit": { "type": "number", "minimum": 0 },
    "serverEnergyBoundary": { "type": "string", "minLength": 1 },
    "totalEnergyBoundary": { "type": "string", "minLength": 1 },
    "directWaterMlPerUnit": { "type": "number", "minimum": 0 },
    "totalWaterMlPerUnit": { "type": "number", "minimum": 0 },
    "directWaterBoundary": { "type": "string", "minLength": 1 },
    "totalWaterBoundary": { "type": "string", "minLength": 1 },
    "status": { "enum": ["verified", "inferred", "estimated", "contested"] },
    "note": { "type": "string", "minLength": 1 },
    "deviceMode": { "enum": ["not-modeled", "fixed", "selectable"] },
    "defaultDeviceId": { "type": "string", "pattern": "^[a-z0-9]+(?:-[a-z0-9]+)*$" },
    "deviceSelectableIds": {
      "type": "array",
      "items": { "type": "string", "pattern": "^[a-z0-9]+(?:-[a-z0-9]+)*$" },
      "uniqueItems": true
    },
    "deviceTotalWhOverrides": {
      "type": "object",
      "additionalProperties": { "type": "number", "minimum": 0 }
    },
    "deviceSelectionAffects": {
      "type": "array",
      "items": { "const": "totalWhPerUnit" },
      "uniqueItems": true
    },
    "deviceNote": { "type": "string", "minLength": 1 },
    "sourceIds": {
      "type": "array",
      "items": { "type": "string", "pattern": "^[a-z0-9]+(?:-[a-z0-9]+)*$" },
      "uniqueItems": true
    },
    "systemBoundary": { "enum": ["legacy-row-specific", "operational-player-hour"] },
    "lastReviewed": { "type": "string", "format": "date" }
  }
}