I need to understand this dataset's structure and identify its most important numeric metric, then find the extreme records for that metric. Let me start by examining the dataset's overview and column details. ```json { "action": "tool_call", "reasoning": "Reading the overview section to understand what this dataset is about and what its key metrics might be. This will help identify the most important numeric metric.", "tool": "read_insight", "args": { "section": "overview" } } ```