{
    "action": "tool_call",
    "reasoning": "The evidence from earlier profiling is not visible to me, so I will re-run one query on the column metadata to ground the classification of raw.iris columns before answering.",
    "tool": "query_sql",
    "args": {
        "sql": "SELECT column_name, phys_type, semantic_role, rough_kind, null_count, distinct_count, uniqueness_score, min_value, max_value, aggregation_role, key_role FROM analytics.column_overview WHERE table_name = 'iris' ORDER BY column_name",
        "purpose": "Classify raw.iris columns as metrics, dimensions, identifiers, and timestamps",
        "source": "raw"
    }
}