{
    "action": "tool_call",
    "reasoning": "I need to present the row count and time period as a rendered data block, as required by the instructions. I will query the total rows and the min/max of the ingestion timestamp.",
    "tool": "query_sql",
    "args": {
        "sql": "SELECT COUNT(*) AS total_rows, 9 AS total_columns, MIN(_ingestion_timestamp) AS start_time, MAX(_ingestion_timestamp) AS end_time FROM raw.iris",
        "purpose": "Get total rows, columns, and time period for the dataset",
        "source": "raw"
    }
}