```json { "action": "tool_call", "reasoning": "The evidence shows this dataset has a complex structure with multiple embedded sections (daily summaries, 30-day trends, call outcomes, escalation reasons). The columns are all VARCHAR, suggesting mixed content. I need to identify which columns contain actual categorical data vs. numeric/temporal data stored as text. From the samples, I can see: 'Day' contains day names, dates, and section headers; 'Total Calls' contains dates and counts; other columns mix percentages, counts, and labels. To properly answer what the most common categorical values are, I should query the frequency distribution of values across the key columns that appear to hold categorical data. Let me get the top values for each column that looks categorical.", "tool": "query_sql", "args": { "sql": "WITH value_counts AS (SELECT 'Day' as column_name, Day as value, COUNT(*) as frequency FROM raw.callyeah_analytics_2026_07_23 WHERE Day IS NOT NULL AND Day != '' GROUP BY Day UNION ALL SELECT 'Total Calls', \"Total Calls\", COUNT(*) FROM raw.callyeah_analytics_2026_07_23 WHERE \"Total Calls\" IS NOT NULL AND \"Total Calls\" != '' GROUP BY \"Total Calls\" UNION ALL SELECT 'AI Handled', \"AI Handled\", COUNT(*) FROM raw.callyeah_analytics_2026_07_23 WHERE \"AI Handled\" IS NOT NULL AND \"AI Handled\" != '' GROUP BY \"AI Handled\" UNION ALL SELECT 'Human Handled', \"Human Handled\", COUNT(*) FROM raw.callyeah_analytics_2026_07_23 WHERE \"Human Handled\" IS NOT NULL AND \"Human Handled\" != '' GROUP BY \"Human Handled\" UNION ALL SELECT 'Voicemail', Voicemail, COUNT(*) FROM raw.callyeah_analytics_2026_07_23 WHERE Voicemail IS NOT NULL AND Voicemail != '' GROUP BY Voicemail), ranked AS (SELECT column_name, value, frequency, ROW_NUMBER() OVER (PARTITION BY column_name ORDER BY frequency DESC) as rank FROM value_counts) SELECT column_name, value, frequency FROM ranked WHERE rank <= 10 ORDER BY column_name, frequency DESC", "purpose": "Get the top 10 most frequent values for each main column to identify categorical patterns", "source": "raw" } } ```