{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "Guide Board Challenge Set",
  "type": "object",
  "additionalProperties": false,
  "required": [
    "id",
    "target_profile_ref",
    "challenges"
  ],
  "properties": {
    "id": { "type": "string" },
    "target_profile_ref": { "type": "string" },
    "challenges": {
      "type": "array",
      "items": {
        "type": "object",
        "additionalProperties": false,
        "required": [
          "id",
          "requirement_refs",
          "check_refs",
          "evidence_refs",
          "result_refs",
          "classification_refs",
          "authority_source_refs",
          "owner",
          "review_status",
          "rationale",
          "created_at",
          "review_due_at",
          "expires_at",
          "native_challenge_id",
          "metadata"
        ],
        "properties": {
          "id": { "type": "string" },
          "requirement_refs": { "type": "array", "items": { "type": "string" } },
          "check_refs": { "type": "array", "items": { "type": "string" } },
          "evidence_refs": { "type": "array", "items": { "type": "string" } },
          "result_refs": { "type": "array", "items": { "type": "string" } },
          "classification_refs": { "type": "array", "items": { "type": "string" } },
          "authority_source_refs": { "type": "array", "items": { "type": "string" } },
          "owner": { "type": "string" },
          "review_status": { "type": "string" },
          "rationale": { "type": "string" },
          "created_at": { "type": "string" },
          "review_due_at": { "type": ["string", "null"] },
          "expires_at": { "type": ["string", "null"] },
          "native_challenge_id": { "type": ["string", "null"] },
          "metadata": { "type": "object" }
        }
      }
    }
  }
}