{
    "action": "tool_call",
    "reasoning": "I've seen the overview, birth year range (0-2014 with 230 zeros and a max of 2014), and activity distribution. The birth year of 2014 is immediately suspicious for a player registry—that would make players ~10 years old at most. I need to investigate this anomaly: how many players have these implausible recent birth years, and what other characteristics do they have? This could reveal data quality issues or a counterintuitive pattern in player registration.",
    "tool": "query_sql",
    "args": {
        "sql": "SELECT Birth_year, COUNT(*) as player_count, COUNT(*) * 100.0 / 37620 as pct_of_total FROM raw.ittf_player_info WHERE Birth_year >= 2010 GROUP BY Birth_year ORDER BY Birth_year DESC",
        "purpose": "Count players with birth years 2010 or later to understand the scale of this anomaly",
        "source": "raw"
    }
}