{
    "action": "tool_call",
    "reasoning": "I need to examine the LLM usage gold table to see what metrics and dimensions are available. This will help me understand the cost structure and determine if this is indeed the most important metric, or if I should look at batch/analysis run success rates instead.",
    "tool": "query_sql",
    "args": {
        "sql": "SELECT * FROM analysis_run_llm_usage_by_model_name ORDER BY model_name",
        "purpose": "Examine the LLM usage metrics available by model to understand cost structure and available aggregations",
        "source": "gold"
    }
}