```json { "action": "tool_call", "reasoning": "The question asks for all columns in the dataset with their types and meanings. The dataset card shows one raw table (raw.ai_supercomputers with 61 columns) but the card was truncated. I'll use inspect_columns without specifying a columns list to get the first 30 columns with their metadata, then call it again if needed to cover all 61.", "tool": "inspect_columns", "args": { "table": "ai_supercomputers" } } ```