{
    "action": "tool_call",
    "reasoning": "The earlier prose reply cited numbers from raw_kaggle_by_Surface, but no tool result for them is in the evidence. I'll query that gold table now so the claims are grounded.",
    "tool": "query_sql",
    "args": {
        "sql": "SELECT * FROM raw_kaggle_by_Surface",
        "purpose": "Get surface-level aggregates (aces, double faults, match counts, ranks) from the gold table",
        "source": "gold"
    }
}