Why 99% of What You Send to Claude Is Already Cached
I’m building an app that monitors my token consumption in Claude Code. A few days ago, looking at the raw numbers, I found this: cacheReadInputTokens: 4,241,579,174 inputTokens: 1,293,019 Four billion two hundred million tokens read from cache. One million three hundred thousand “fresh” tokens. That’s a 99.97% cache hit rate. My first reaction was thinking something was broken. Nobody has a 99% cache hit rate. Not Redis. Not Cloudflare. Not your mom when she claims she already knows what you’re going to ask for dinner. ...