I'll systematically check for data quality issues across this table tennis dataset. Let me start by examining the structure and then look for specific problems. ```json { "action": "tool_call", "reasoning": "First, I need to understand the column structure and get basic statistics to identify potential quality issues. I'll inspect all columns to see their types, null counts, and value ranges.", "tool": "inspect_columns", "args": { "table": "raw.table_tennis_sept2022" } } ```