{
    "action": "tool_call",
    "reasoning": "No evidence from this turn is available, so I can't cite the earlier categorical-profile claims. I'll recompute them with one query: distinct counts, top companies by row count and each company's date range.",
    "tool": "query_sql",
    "args": {
        "sql": "SELECT company_name, stock_name, COUNT(*) AS n_rows, ROUND(100.0 * COUNT(*) / SUM(COUNT(*)) OVER (), 2) AS pct_rows, MIN(date) AS first_date, MAX(date) AS last_date FROM raw.semi_conductor_se GROUP BY company_name, stock_name ORDER BY n_rows DESC LIMIT 20",
        "purpose": "Verify the company/ticker distribution, top row counts and date ranges",
        "source": "raw"
    }
}