{
    "action": "tool_call",
    "reasoning": "No query results are visible in my evidence, so I can't cite the numbers from my earlier draft. I'll re-run the category-level summary to ground them: row counts, share of rows, and average sleep hours, snoozes, fatigue and sleep latency per sleep_debt_category.",
    "tool": "query_sql",
    "args": {
        "sql": "SELECT sleep_debt_category, COUNT(*) AS n, ROUND(100.0 * COUNT(*) / SUM(COUNT(*)) OVER (), 1) AS pct_rows, ROUND(AVG(total_sleep_hours), 2) AS avg_sleep_hours, ROUND(AVG(morning_alarm_snoozes), 2) AS avg_snoozes, ROUND(AVG(next_day_fatigue_score), 2) AS avg_fatigue, ROUND(AVG(sleep_latency_min), 1) AS avg_sleep_latency_min FROM raw.bedtime_screentime_sleep_debt GROUP BY sleep_debt_category ORDER BY avg_sleep_hours DESC",
        "purpose": "Ground the sleep debt category distribution and how sleep, snoozes, fatigue and latency vary across categories",
        "source": "raw"
    }
}