I'll systematically check for data quality issues across this adverse events dataset. Let me start by examining the column metadata to understand what we're working with. ```json { "action": "tool_call", "reasoning": "First, I need to understand the data types and basic statistics for all columns to identify potential quality issues. I'll inspect the raw.ae table to see null counts, distinct values, and ranges.", "tool": "inspect_columns", "args": { "table": "raw.ae" } } ```