{
    "action": "tool_call",
    "reasoning": "The evidence shows the dataset has a complex structure with multiple embedded report sections (weekly summary, 30-day trend, call outcomes, escalation reasons, call log) all stored in the same table with VARCHAR columns. I need to examine the actual data structure more carefully to identify quality issues. Let me query for distinct values in key columns to understand the data mixing and format inconsistencies.",
    "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 WHERE Day NOT IN ('Day', 'Date', 'Outcome', 'Reason', '', ' ') AND \"Total Calls\" NOT IN ('Total Calls', 'Count', '', ' ') LIMIT 50",
        "purpose": "Get actual data rows excluding header rows to examine data quality issues in the mixed-format dataset",
        "source": "raw"
    }
}