{
    "action": "tool_call",
    "reasoning": "I have good orientation on the dataset structure and coverage. To identify the most interesting analytical questions, I should examine what gold tables exist - these pre-aggregated views often reveal the analytical patterns the data naturally supports. The card shows many gold tables exist (by date, team, venue, etc.), so I'll get their full list with columns to understand what analyses are already optimized.",
    "tool": "get_gold_tables",
    "args": {}
}