{
    "action": "tool_call",
    "reasoning": "I've reviewed the evidence and found a critical discrepancy: the products table shows 'GTX Pro' (with a space) with sales_price 4821, but the sales_pipeline table contains 1,480 deals for 'GTXPro' (no space) - yet step-7 shows GTX Pro with 0 deals and $0 revenue. This appears to be a data quality issue where a product name mismatch has orphaned 1,480 sales opportunities. Let me verify the exact product names in both tables to confirm this is the counterintuitive finding.",
    "tool": "query_sql",
    "args": {
        "sql": "SELECT DISTINCT product FROM raw.products ORDER BY product",
        "purpose": "Get exact product names from the products catalog table",
        "source": "raw"
    }
}