{
    "action": "tool_call",
    "reasoning": "Profile every column of raw.Iris (type, role, nulls, cardinality, range) in a single query against the column overview metadata.",
    "tool": "query_sql",
    "args": {
        "sql": "SELECT column_name, phys_type, semantic_role, rough_kind, null_count, distinct_count, min_value, max_value, key_role, aggregation_role FROM analytics.column_overview WHERE table_name = 'Iris'",
        "purpose": "Get the profiled type, role, and cardinality of every column in raw.Iris to classify them",
        "source": "raw"
    }
}