```json { "action": "tool_call", "reasoning": "The user wants to see representative sample rows from the dataset. The dataset contains 43 tables with over 2 million rows total. The 'samples' table (10,118 rows) appears to be designed specifically for this purpose - it contains sample rows from various tables in the catalog, with each row stored as JSON in the 'row_json' column. I'll query this table to show a diverse set of sample rows, selecting a few from different source tables to give a representative view of the dataset's content.", "tool": "query_sql", "args": { "sql": "SELECT tables_catalog_id, row_index, row_json FROM raw.samples ORDER BY tables_catalog_id, row_index LIMIT 20", "purpose": "Retrieve a representative sample of rows from across the dataset by querying the samples table, which contains pre-collected sample rows from various tables", "source": "raw" } } ```