{
    "action": "tool_call",
    "reasoning": "The earlier draft cited surface figures, but no query result appears in my evidence. I'll query the gold surface table so that every number I cite is grounded.",
    "tool": "query_sql",
    "args": {
        "sql": "SELECT * FROM raw_kaggle_by_Surface",
        "purpose": "Get surface-level aggregates (aces, DFs, serve points, rank) to ground the suggested analytical questions",
        "source": "gold"
    }
}