{
    "action": "tool_call",
    "reasoning": "To identify the most interesting analytical questions, I need to understand what gold tables exist. These pre-aggregated tables will reveal what dimensions and breakdowns are readily available, which helps identify what kinds of questions the dataset is optimized to answer. I'll then combine this with the column metadata I already have to propose compelling analytical questions.",
    "tool": "get_gold_tables",
    "args": {}
}