I need to identify categorical columns and count their distinct values. Let me check the evidence I already have. From step-0, I can see column metadata including `rough_kind` which identifies categorical columns. However, this result shows only identifier columns and a few categorical ones. I need to get a complete view of all categorical columns across all tables. Let me query for all columns with categorical rough_kind and their distinct counts: ```json { "action": "tool_call", "reasoning": "The evidence shows some categorical columns but appears truncated (50 rows shown). I need to query the metadata to get ALL categorical columns across all tables with their distinct value counts. I'll query meta.columns or analytics.column_overview to get complete categorical column information.", "tool": "query_sql", "args": { "sql": "SELECT table_name, column_name, phys_type, approx_distinct_count, distinct_count FROM analytics.column_overview WHERE rough_kind = 'categorical' ORDER BY table_name, column_name", "purpose": "Get all categorical columns with their distinct value counts" } } ```