{
    "action": "tool_call",
    "reasoning": "Check for duplicate measurement rows in raw.Iris: group by the measurements and species and find any combination that repeats.",
    "tool": "query_sql",
    "args": {
        "sql": "SELECT Species, SepalLengthCm, SepalWidthCm, PetalLengthCm, PetalWidthCm, COUNT(*) AS copies, MIN(Id) AS first_id, MAX(Id) AS last_id FROM raw.Iris GROUP BY Species, SepalLengthCm, SepalWidthCm, PetalLengthCm, PetalWidthCm HAVING COUNT(*) > 1",
        "purpose": "Check for duplicate measurement rows",
        "source": "raw"
    }
}