{
    "action": "tool_call",
    "reasoning": "I need to see the actual column values and data to identify the most important metric and category. The card shows column names but they're all VARCHAR type, suggesting they may need cleaning. Let me inspect the columns to understand their semantic roles, null counts, and distinct values to determine which are metrics vs categories.",
    "tool": "inspect_columns",
    "args": {
        "table": "callyeah_analytics_2026_07_23"
    }
}