{
  "type": "object",
  "properties": {
    "query_entities": {
      "type": "array",
      "description": "Genes, proteins, compounds, pathways, mechanisms, or phenotypes identified in the physician's question. Include all specific biological terms mentioned.",
      "items": {
        "type": "string"
      },
      "minItems": 1
    },
    "query_text": {
      "type": "string",
      "description": "The original physician question, used verbatim for semantic vector search."
    }
  },
  "required": ["query_entities", "query_text"]
}