{
    "action": "tool_call",
    "reasoning": "No evidence is in hand yet, so the numbers in my earlier draft are unverified. I will pull the per-species summary from the gold table before answering.",
    "tool": "query_sql",
    "args": {
        "sql": "SELECT * FROM Iris_by_Species",
        "purpose": "Per-species averages, min, max and medians of the four measurements to check what the dataset can answer",
        "source": "gold"
    }
}