```json { "action": "tool_call", "reasoning": "I have basic statistics showing no nulls and reasonable ranges for the measurements. To assess data quality issues comprehensively, I need to check: 1) whether the Species values are consistent (no typos/variants), 2) whether there are any duplicate rows, and 3) examine the actual distribution to spot outliers. Let me start by examining the Species values for consistency and checking for duplicates.", "tool": "query_sql", "args": { "sql": "SELECT Species, COUNT(*) as count, COUNT(DISTINCT Id) as distinct_ids FROM raw.Iris GROUP BY Species ORDER BY Species", "purpose": "Check Species value consistency and whether there are duplicate IDs within each species group", "source": "raw" } } ```