{
    "action": "tool_call",
    "reasoning": "The question asks about natural segmentation opportunities across the dataset. I have evidence on deal stages, sectors, and temporal patterns, but I should explore product series and sales agent distribution to identify all meaningful grouping dimensions. Let me check product series breakdown and sales agent distribution to complete the segmentation picture.",
    "tool": "query_sql",
    "args": {
        "sql": "SELECT p.series, COUNT(*) as opportunity_count, COUNT(DISTINCT b.account) as unique_accounts, AVG(b.close_value) as avg_close_value, MIN(p.sales_price) as min_price, MAX(p.sales_price) as max_price FROM raw.b2b_sales_funnel_pipeline b JOIN raw.products p ON b.product = p.product WHERE b.close_value IS NOT NULL GROUP BY p.series ORDER BY opportunity_count DESC",
        "purpose": "Analyze product series as a segmentation dimension - count opportunities, accounts, and value metrics by series"
    }
}