I need to show representative sample rows from this dataset. Let me get the actual column names for one of the main tables and then query for sample rows. ```json { "action": "tool_call", "reasoning": "My previous query failed because I used 'id' which doesn't exist. I need to inspect the columns of a representative table first. The llm_calls table (49,360 rows) seems like a good candidate as it's a core operational table. Let me get its actual column structure.", "tool": "inspect_columns", "args": { "table": "llm_calls" } } ```