{
    "action": "tool_call",
    "reasoning": "No tool results are in evidence yet, so I can't cite the numbers from my earlier draft. I'll pull the per-species aggregates from the gold table first.",
    "tool": "query_sql",
    "args": {
        "sql": "SELECT * FROM Iris_by_Species",
        "purpose": "Per-species counts and min/avg/max/median of each measurement to compare how well each feature separates the species",
        "source": "gold"
    }
}