上下文压缩 · 学 AI

解决什么问题What problem it solves

对话长到快装不下时，把前面内容总结一遍再重新开始。When a conversation nearly fills the window, summarize it and start again.

这是什么What it is

Anthropic 的定义：把接近窗口上限的对话做摘要，再用它开启新窗口。

官方同时把结构化笔记列为应对窗口限制的配套做法。

Anthropic's definition: summarize a conversation nearing the window limit, then reinitiate a new window with the summary.

Compaction loses detail, so it is usually paired with external notes.

为什么需要知道Why it matters

长任务跑一半「忘了前面」，多半是这一步没做好。A long task that "forgets" halfway is usually a compaction failure.

别名Chinese aliases

压缩 · 对话压缩

接着读什么，为什么What to read next, and why

上下文工程Context Engineering
一起用于《上下文工程怎么做》Used together in “How to Do Context Engineering”
上下文窗口的代价Context Cost
一起用于《上下文工程怎么做》Used together in “How to Do Context Engineering”

现在能做什么What you can do now

出处Sources

Anthropic《Effective context engineering for AI agents》Anthropic, Effective context engineering for AI agents ↗

上下文压缩Compaction