{
  "$id": "objective.schema.json",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$ref": "contentitem.schema.json",
  "additionalProperties": true,
  "title": "Objective",
  "description": "Learning Objective content component in CTK (Doolittle ComponentType.Objective). Reusable, ingested,then linked to Course/Lesson/Assessment carriers.",
  "type": "object",
  "required": [ "type", "objective", "metadata" ],
  "properties": {
    "type": {
      "type": "string",
      "const": "objective"
    },
    "objective": {
      "type": "string",
      "minLength": 1,
      "description": "Plain-text objective statement (maps to ContentInput.objective)"
    },
    "metadata": {
      "type": "array",
      "minItems": 1,
      "uniqueItems": true,
      "items": { "$ref": "objective-metadata.schema.json" }
    }
  }
}