{
    "action": "tool_call",
    "reasoning": "I have evidence showing quality issues by kind and severity, and the most common messages. However, the question asks specifically about outliers, impossible values, inconsistent formats, and mixed units. The 'message' field contains the actual issue descriptions, but I need to examine the full range of messages to categorize them properly. Let me query for all distinct messages grouped by kind to see the full spectrum of quality issues beyond just the top occurrences.",
    "tool": "query_sql",
    "args": {
        "sql": "SELECT kind, severity, message, COUNT(*) as issue_count FROM raw.quality_issues GROUP BY kind, severity, message ORDER BY issue_count DESC, kind, severity",
        "purpose": "Get complete breakdown of all quality issue types to identify outliers, impossible values, format inconsistencies, and unit mixing",
        "source": "raw"
    }
}