```json { "action": "tool_call", "reasoning": "The dataset card says 'COLUMN OWNERSHIP: not listed here (69 columns across 1 tables exceeds the card budget) — call inspect_columns(<table>) to get a table's exact columns before referencing them.' I need to inspect the raw.benchmarks table to get the full list of columns with their types and semantic roles, which will allow me to classify them into identifiers, categorical dimensions, numeric metrics, and dates/times.", "tool": "inspect_columns", "args": { "table": "raw.benchmarks" } } ```