{
    "action": "tool_call",
    "reasoning": "I have evidence showing quality_issues table contains 417 rows with 'kind' and 'severity' dimensions, and I've seen the breakdown by kind/severity and the most common messages. However, the question asks specifically about outliers, impossible values, inconsistent formats, or mixed units. The 'message' column contains the actual issue descriptions, but I've only seen the top ~50 messages. I need to search for messages that specifically mention these types of issues. Let me query for messages containing keywords related to the question's specific concerns.",
    "tool": "query_sql",
    "args": {
        "sql": "SELECT kind, severity, message, COUNT(*) as occurrence_count FROM raw.quality_issues WHERE message LIKE '%outlier%' OR message LIKE '%impossible%' OR message LIKE '%inconsistent%' OR message LIKE '%mixed unit%' OR message LIKE '%format%' OR message LIKE '%invalid%' GROUP BY kind, severity, message ORDER BY occurrence_count DESC LIMIT 20",
        "purpose": "Find quality issues specifically related to outliers, impossible values, inconsistent formats, or mixed units"
    }
}