```json { "action": "tool_call", "reasoning": "The dataset card shows 2 tables (raw.ae and raw.adsl) with row counts, but I need to get the exact column counts and identify the time period coverage. The card lists temporal axes but I should query to get the actual min/max dates across the dataset. I'll start by getting basic table statistics from the metadata.", "tool": "query_sql", "args": { "sql": "SELECT table_name, row_count, column_count FROM analytics.table_overview ORDER BY table_name", "purpose": "Get exact row and column counts for each table in the dataset", "source": "raw" } } ```