{
    "action": "tool_call",
    "reasoning": "The column inspection reveals that many columns are VARCHAR when they should be numeric (Total Calls, AI Handled, Human Handled, etc.), and the min/max ranges show unexpected values like 'Voicemail', 'Total Calls', 'Time', 'Duration (s)', 'Sentiment Score' - these look like header rows mixed into the data. I need to examine actual row values to understand the data structure and find what's truly surprising. Let me look at a sample of rows to see the pattern.",
    "tool": "query_sql",
    "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 LIMIT 20",
        "purpose": "Examine actual row values to understand data structure and identify patterns",
        "source": "raw"
    }
}