```json { "action": "tool_call", "reasoning": "The question asks for all columns in the dataset with their types and meanings. The dataset card shows this is a single-table dataset (raw.epoch_ai_benchmarks with 69 columns). I'll use inspect_columns to get the complete column metadata including types, semantic roles, and descriptions. Since there are 69 columns and inspect_columns returns the first 30 by default, I'll call it without specifying columns to get the initial batch, then assess if I need to make additional calls for the remaining columns.", "tool": "inspect_columns", "args": { "table": "epoch_ai_benchmarks" } } ```