{
    "action": "tool_call",
    "reasoning": "Compare mental health and related outcomes across Primary_Platform using the raw table, since the gold table's columns are not listed on the card.",
    "tool": "query_sql",
    "args": {
        "sql": "SELECT Primary_Platform, COUNT(*) AS students, ROUND(AVG(Mental_Health_Index),2) AS avg_mental_health, ROUND(AVG(Daily_Usage_Hours),2) AS avg_daily_hours, ROUND(AVG(Perceived_Stress_Score),2) AS avg_stress, ROUND(AVG(Sleep_Duration_Hours),2) AS avg_sleep, ROUND(AVG(Academic_Performance_GPA),2) AS avg_gpa FROM raw.Social_media_impact_on_life GROUP BY Primary_Platform ORDER BY avg_mental_health DESC",
        "purpose": "Mental_Health_Index (key outcome) across Primary_Platform with supporting measures",
        "source": "raw"
    }
}