{
  "schema": "MKN005_DIAGNOSTIC_MATRIX_FIXTURE_v1",
  "required_dimensions": [
    "assessment_id",
    "competency_id",
    "item_id",
    "item_alignment",
    "item_difficulty_band",
    "response_state",
    "evidence_weight",
    "estimate_before",
    "estimate_after",
    "uncertainty_band",
    "selection_rule_id",
    "next_item_or_route",
    "stop_condition",
    "accommodation_ref",
    "mastery_effect",
    "review_state",
    "provenance"
  ],
  "allowed_uncertainty": [
    "LOW",
    "MEDIUM",
    "HIGH"
  ],
  "allowed_review_state": [
    "REVIEW_REQUIRED",
    "REVIEW_READY"
  ],
  "allowed_stop": [
    "CONTINUE",
    "STOP_BUDGET",
    "STOP_SUFFICIENT_EVIDENCE"
  ]
}