{
    "action": "tool_call",
    "reasoning": "I can see from step-8 that the data contains daily records (dates like 01-Jul, 02-Jul, etc.) showing AI Resolution % ranging from ~73% to ~83%. However, I also see individual call records (CY-2847, CY-2848, etc.) with outcomes like 'AI Resolved', 'Transferred', 'Voicemail'. This suggests the 'Day' column contains mixed data - both date summaries AND individual call IDs. I need to understand the true structure by looking at a proper sample of the Day column values to determine what the actual grain is and what categories exist.",
    "tool": "query_sql",
    "args": {
        "sql": "SELECT Day, \"Total Calls\", \"AI Handled\", \"Human Handled\", Voicemail, \"AI Resolution %\", \"Human %\" FROM raw.callyeah_analytics_2026_07_23 WHERE Day NOT LIKE 'CY-%' AND Day NOT IN ('TOTAL', 'Today', '===', '') AND Day NOT LIKE '===%' ORDER BY Day LIMIT 50",
        "purpose": "Get clean daily summary records excluding individual call IDs and header rows to understand the date-based time series",
        "source": "raw"
    }
}