{
    "action": "tool_call",
    "reasoning": "The evidence so far shows standard funnel behavior (Won deals have values, Lost/Engaging/Prospecting don't), but I need to explore deeper patterns that might be counterintuitive. Let me examine win rates and conversion patterns across different dimensions. First, I'll look at whether there are any unusual patterns in deal values - for instance, are there accounts or products with unexpectedly high/low win rates, or time-based anomalies in conversion?",
    "tool": "query_sql",
    "args": {
        "sql": "SELECT account, COUNT(*) as total_deals, SUM(CASE WHEN deal_stage = 'Won' THEN 1 ELSE 0 END) as won_deals, ROUND(100.0 * SUM(CASE WHEN deal_stage = 'Won' THEN 1 ELSE 0 END) / COUNT(*), 1) as win_rate_pct, SUM(CASE WHEN deal_stage = 'Won' THEN close_value ELSE 0 END) as total_won_value FROM raw.b2b_sales_funnel_pipeline GROUP BY account HAVING COUNT(*) >= 50 ORDER BY win_rate_pct DESC LIMIT 20",
        "purpose": "Check if any high-volume accounts have surprisingly extreme win rates (very high or very low) that would be counterintuitive",
        "source": "raw"
    }
}