{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "Preference pair for post-training audit",
  "type": "object",
  "required": [
    "pair_id",
    "prompt_id",
    "task_family",
    "prompt",
    "chosen",
    "rejected",
    "preference_reason",
    "rubric_scores",
    "annotator_ids",
    "agreement",
    "chosen_reward_score",
    "rejected_reward_score",
    "chosen_tokens",
    "rejected_tokens",
    "source_policy",
    "created_at",
    "verifier_result"
  ],
  "properties": {
    "pair_id": {"type": "string"},
    "prompt_id": {"type": "string"},
    "task_family": {"type": "string"},
    "prompt": {"type": "string"},
    "chosen": {"type": "string"},
    "rejected": {"type": "string"},
    "preference_reason": {"type": "string"},
    "rubric_scores": {
      "type": "object",
      "required": ["correctness", "evidence", "format", "cost"],
      "additionalProperties": {"type": "number"}
    },
    "annotator_ids": {"type": "array", "items": {"type": "string"}},
    "agreement": {"type": "number", "minimum": 0, "maximum": 1},
    "chosen_reward_score": {"type": "number", "minimum": 0, "maximum": 1},
    "rejected_reward_score": {"type": "number", "minimum": 0, "maximum": 1},
    "chosen_tokens": {"type": "integer", "minimum": 1},
    "rejected_tokens": {"type": "integer", "minimum": 1},
    "source_policy": {"type": "string"},
    "created_at": {"type": "string"},
    "reference_answer": {"type": "string"},
    "verifier_result": {
      "type": "object",
      "required": ["available", "score", "version", "notes"],
      "properties": {
        "available": {"type": "boolean"},
        "score": {"type": ["number", "null"]},
        "version": {"type": "string"},
        "notes": {"type": "string"}
      }
    }
  }
}