{
    "action": "tool_call",
    "reasoning": "The unnamed columns are empty in the first 5 rows, but the inspect_columns output shows they have distinct values and ranges like 'Duration (m:ss)' and 'Sentiment Score'. I need to see what data they actually hold to explain what they mean.",
    "tool": "query_sql",
    "args": {
        "sql": "SELECT _unnamed_7, _unnamed_8, _unnamed_9 FROM raw.callyeah_analytics_2026_07_23 WHERE _unnamed_7 != '' OR _unnamed_8 != '' OR _unnamed_9 != '' LIMIT 10",
        "purpose": "Check the contents of the unnamed columns to understand their meaning.",
        "source": "raw"
    }
}