{
    "action": "tool_call",
    "reasoning": "The earlier draft quoted numbers that I never ran a query for. I'll pull the surface aggregates from the gold table first so the answer rests on real results.",
    "tool": "query_sql",
    "args": {
        "sql": "SELECT * FROM raw_kaggle_by_Surface",
        "purpose": "Inspect per-surface aggregates (row counts, aces, double faults) to ground the most important category and metric",
        "source": "gold"
    }
}