{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "jev-compat-v1/response.schema.json",
  "title": "JEV systemone response (jev-compat-v1)",
  "type": "object",
  "required": ["model", "answers", "usage"],
  "properties": {
    "model": {"type": "string", "minLength": 1},
    "answers": {
      "type": "object",
      "minProperties": 1,
      "additionalProperties": {
        "oneOf": [
          {"$ref": "#/$defs/choice"},
          {"$ref": "#/$defs/noul"},
          {"$ref": "#/$defs/score"}
        ]
      }
    },
    "usage": {
      "type": "object",
      "required": ["input_tokens", "output_tokens"],
      "properties": {
        "input_tokens": {"type": "integer", "minimum": 0},
        "output_tokens": {"const": 0}
      }
    },
    "metadata": {
      "type": "object",
      "description": "Extensão do benchmark (tarefa 48); ignorada por clientes JEV.",
      "properties": {
        "latency_ms": {"type": "number", "minimum": 0},
        "model_id": {"type": "string"},
        "run_id": {"type": "string"},
        "adapter_version": {"type": "string"},
        "probabilities_source": {"enum": ["native", "normalized_scores", "logprobs", "none"]},
        "truncated": {"type": "boolean"}
      }
    }
  },
  "$defs": {
    "prob": {"type": "number", "minimum": 0, "maximum": 1},
    "probs": {"type": "object", "minProperties": 1, "additionalProperties": {"$ref": "#/$defs/prob"}},
    "choice": {
      "type": "object",
      "required": ["type", "choice", "probabilities"],
      "properties": {
        "type": {"const": "choice"},
        "choice": {"type": "string"},
        "confidence": {"$ref": "#/$defs/prob"},
        "probabilities": {"$ref": "#/$defs/probs"}
      }
    },
    "noul": {
      "type": "object",
      "required": ["type", "noul"],
      "properties": {
        "type": {"const": "noul"},
        "noul": {"$ref": "#/$defs/prob"}
      }
    },
    "score": {
      "type": "object",
      "required": ["type", "score", "probabilities", "legend"],
      "properties": {
        "type": {"const": "score"},
        "score": {"type": "number", "minimum": 0},
        "confidence": {"$ref": "#/$defs/prob"},
        "probabilities": {"$ref": "#/$defs/probs"},
        "legend": {"type": "object", "additionalProperties": {"type": "string"}}
      }
    }
  }
}