Token usage previously showed cache reads and writes without a comparable hit rate. Activity usage now calculates a weighted cache hit rate using OpenAI-compatible input totals and Anthropic's separately reported input, cache-read, and cache-write tokens, then shows it in totals and grouped details. Release note: Token 用量统计新增缓存命中率,并针对 OpenAI 兼容接口与 Anthropic Messages 的不同上报口径进行归一化计算。