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 to think something was broken. Nobody has 99% cache hit. Not Redis. Not Cloudflare. Not your mom when she tells you she already knows what you’re going to ask for lunch. ...