```json { "action": "tool_call", "reasoning": "The dataset card shows raw.championsdataset has 12 columns, but doesn't provide detailed type information beyond VARCHAR for most. I need to inspect the columns to get their physical types, semantic roles, and statistics to properly classify them as identifiers, categorical dimensions, numeric metrics, or dates/times.", "tool": "inspect_columns", "args": { "table": "championsdataset" } } ```