{
    "action": "tool_call",
    "reasoning": "I need to verify the exact date format in the Date column to correctly compute the minimum and maximum dates (time period), as well as confirm the row count.",
    "tool": "query_sql",
    "args": {
        "purpose": "Get row count and sample dates to determine date format",
        "source": "raw",
        "sql": "SELECT COUNT(*) OVER() AS total_rows, Date FROM raw.table_tennis_sept2022 LIMIT 5"
    }
}