{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://finmirror.dev/schema/prediction.schema.json",
  "title": "FinMirror Prediction",
  "type": "object",
  "additionalProperties": false,
  "required": [
    "case_id",
    "answer",
    "value",
    "unit",
    "citations",
    "confidence",
    "abstained"
  ],
  "properties": {
    "case_id": {"type": "string", "minLength": 1},
    "answer": {"type": "string"},
    "value": {"type": ["number", "string", "null"]},
    "unit": {"type": "string"},
    "citations": {
      "type": "array",
      "uniqueItems": true,
      "items": {"type": "string", "pattern": "^.+#[A-Za-z0-9_.:-]+$"}
    },
    "confidence": {"type": "number", "minimum": 0, "maximum": 1},
    "abstained": {"type": "boolean"},
    "formula_id": {"type": "string", "default": ""},
    "operands": {
      "type": "array",
      "default": [],
      "items": {"$ref": "#/$defs/operand"}
    },
    "missing_evidence": {
      "type": "array",
      "uniqueItems": true,
      "default": [],
      "items": {"type": "string"}
    },
    "pre_confidence": {
      "type": ["number", "null"],
      "minimum": 0,
      "maximum": 1
    },
    "retrieved_document_ids": {
      "type": "array",
      "uniqueItems": true,
      "default": [],
      "items": {"type": "string"}
    },
    "latency_ms": {"type": "number", "minimum": 0, "default": 0},
    "input_tokens": {"type": "integer", "minimum": 0, "default": 0},
    "output_tokens": {"type": "integer", "minimum": 0, "default": 0},
    "trace": {
      "type": "array",
      "default": [],
      "items": {"type": "object"}
    },
    "metadata": {"type": "object", "default": {}}
  },
  "$defs": {
    "operand": {
      "type": "object",
      "additionalProperties": false,
      "required": ["name", "value", "unit", "evidence"],
      "properties": {
        "name": {"type": "string", "minLength": 1},
        "value": {"type": "number"},
        "unit": {"type": "string", "minLength": 1},
        "evidence": {
          "type": "string",
          "pattern": "^.+#[A-Za-z0-9_.:-]+$"
        }
      }
    }
  }
}