{
    "action": "tool_call",
    "reasoning": "I need to identify correlations between columns. From the evidence, I can see the data has numeric values stored as VARCHAR (Total Calls, AI Handled, Human Handled, Voicemail, AI Resolution %, Human %). The unnamed columns (_unnamed_7, _unnamed_8, _unnamed_9) appear empty in the sample but may contain data. I should first examine a broader sample to understand what data exists in all columns, then compute correlations between the numeric measures.",
    "tool": "query_sql",
    "purpose": "Get a sample of rows to see what data exists in all columns including the unnamed ones",
    "args": {
        "sql": "SELECT Day, \"Total Calls\", \"AI Handled\", \"Human Handled\", Voicemail, \"AI Resolution %\", \"Human %\", _unnamed_7, _unnamed_8, _unnamed_9 FROM raw.callyeah_analytics_2026_07_23 WHERE _unnamed_7 IS NOT NULL AND _unnamed_7 != '' LIMIT 20",
        "source": "raw"
    }
}