Analyze OpenClaw session logs to report token usage, costs, and performance metrics grouped by agent and model. Use when the user asks about API spending, token usage, session costs, or wants a usage summary.

分析 OpenClaw 会话日志，按代理和模型统计令牌使用量、成本和性能指标。当用户询问 API 支出、令牌使用情况、会话成本或需要使用摘要时使用。