Claude Code成本与额度长帖约 4 分钟

Hook拦截大文件读请求

Block big reads with hooks

要点

写在 CLAUDE.md 里的分流规则会被忽略，hook 才会硬拦截
超大文件读改走廉价模型做摘要，旗舰模型只做推理和编辑
Spotify 在一个 Java 单体上测到约九成 token 下降
先用自己的会话日志估触发率，别假设你也能省九成

原帖开头

A Spotify engineer built a Claude Code plugin that blocks big file reads at the hook layer and reroutes them to a cheap Gemini worker instead of Claude. His first version was routing advice in CLAUDE.md. Claude ignored it. The hook doesn't ask, it blocks. He measured a 90% drop i …