{
    "action": "tool_call",
    "reasoning": "No query results are in evidence, so the numbers in my earlier draft are unbacked. The gold table raw_kaggle_by_Surface should hold the surface breakdown, so I'll query it before answering.",
    "tool": "query_sql",
    "args": {
        "sql": "SELECT * FROM raw_kaggle_by_Surface",
        "purpose": "Get surface-level aggregates (rows, aces, DFs, TP, rank) from the gold table to ground the segmentation answer",
        "source": "gold"
    }
}