{
    "action": "tool_call",
    "reasoning": "I need to see actual sample data from the Amount and Valuation columns to understand their format before I can analyze them. The error showed values with commas and possibly different units (M for millions, B for billions). Let me query a few rows to see the actual format.",
    "tool": "query_sql",
    "args": {
        "sql": "SELECT Company, Amount, Valuation, Industry, Date_reported FROM raw.\"Largest US Venture Funding Deals Of 2023\" LIMIT 10",
        "purpose": "Examine sample rows to understand the format of Amount and Valuation columns",
        "source": "raw"
    }
}