{
    "action": "tool_call",
    "reasoning": "I need to examine the actual data values to identify quality issues. The inspect_columns result shows all demographic/measure columns are VARCHAR with percentage ranges, but I need to see the raw values to check for formatting inconsistencies, impossible percentages (>100% or <0%), mixed formats (some with % signs, some without), or other anomalies. I'll query a sample of rows across multiple columns to inspect the actual stored values.",
    "tool": "query_sql",
    "sql": "SELECT Question, Response, Overall, \"Gender: Male\", \"Gender: Female\", \"Age: 18–29\", \"Income: $100K+\", \"Education: Bachelor+\", \"Employment: Full-time\", \"Region: Northeast\" FROM raw.polling_on_ai_usage_jul_2026 LIMIT 20",
    "purpose": "Sample raw values from multiple measure columns to check for formatting inconsistencies, invalid percentages, or mixed data types",
    "source": "raw"
}