{
    "action": "tool_call",
    "reasoning": "Compute pairwise correlations among the numeric usage, sleep, stress, mental health and GPA columns in one query over the raw table.",
    "tool": "query_sql",
    "args": {
        "sql": "SELECT corr(Daily_Usage_Hours, Weekend_Extra_Hours) AS usage_weekend, corr(Daily_Usage_Hours, Sleep_Duration_Hours) AS usage_sleepdur, corr(Daily_Usage_Hours, Sleep_Quality_Score) AS usage_sleepq, corr(Daily_Usage_Hours, Perceived_Stress_Score) AS usage_stress, corr(Daily_Usage_Hours, Mental_Health_Index) AS usage_mh, corr(Daily_Usage_Hours, Academic_Performance_GPA) AS usage_gpa, corr(Weekend_Extra_Hours, Sleep_Duration_Hours) AS wk_sleepdur, corr(Weekend_Extra_Hours, Perceived_Stress_Score) AS wk_stress, corr(Weekend_Extra_Hours, Mental_Health_Index) AS wk_mh, corr(Weekend_Extra_Hours, Academic_Performance_GPA) AS wk_gpa, corr(Sleep_Duration_Hours, Sleep_Quality_Score) AS sleepdur_sleepq, corr(Sleep_Duration_Hours, Perceived_Stress_Score) AS sleepdur_stress, corr(Sleep_Duration_Hours, Mental_Health_Index) AS sleepdur_mh, corr(Sleep_Duration_Hours, Academic_Performance_GPA) AS sleepdur_gpa, corr(Sleep_Quality_Score, Perceived_Stress_Score) AS sleepq_stress, corr(Sleep_Quality_Score, Mental_Health_Index) AS sleepq_mh, corr(Sleep_Quality_Score, Academic_Performance_GPA) AS sleepq_gpa, corr(Perceived_Stress_Score, Mental_Health_Index) AS stress_mh, corr(Perceived_Stress_Score, Academic_Performance_GPA) AS stress_gpa, corr(Mental_Health_Index, Academic_Performance_GPA) AS mh_gpa FROM raw.Social_media_impact_on_life",
        "purpose": "Pairwise correlations among usage, sleep, stress, mental health and GPA",
        "source": "raw"
    }
}