```json { "action": "tool_call", "reasoning": "The dataset card shows 22 columns in raw.table_tennis_sept2022. To classify them properly (identifiers, categorical dimensions, numeric metrics, dates/times), I need detailed metadata including semantic_role, rough_kind, and phys_type for all columns. The inspect_columns tool will provide this information efficiently in one call.", "tool": "inspect_columns", "args": { "table": "table_tennis_sept2022" } } ```