从毕昇的活字、德格印经院的木刻，到 Agent 时代的数字优盘 —— 为什么我们给这个产品起名叫「活字」。
From Bi Sheng’s movable type and the Derge Printing House to a digital USB drive for the Agent era — why we named this product Huozi.
活字——这是我们给这款产品起的中文名。在给它起名的时候，我们想表达三件事：一种对知识传承的敬意，一种对当下 Agent 时代的回应，以及一种我们认为理所当然、但还没有人做出来的东西。
公元 1041 年，毕昇发明了泥活字。这是一次了不起的抽象——把「一段知识」从「一整块雕版」上剥离出来，变成可以重排、可以复用、可以传递的最小单位。知识第一次与承载它的载体解耦。
而在四川德格的山里，德格印经院至今仍保存着 32 万多块木刻经版。近三百年来，无论朝代更替、战火烽烟，僧人们一直在那里刷墨、印经、装订。没有任何一台服务器、任何一家公司能承诺这样的寿命。它能做到，是因为知识被刻在了一种稳定、可读、可复制的器皿上——木头、墨、藏纸。
在我们看来，这是同一条线索：知识要活下去，必须有一个比任何单个工具、任何单个朝代都更长久的器皿。活字，是这个器皿的一个具体形态。
Word、Excel、PowerPoint——这些格式是为人的手和眼设计的。一个 .docx 文件里塞满了样式、XML schema、图形对象、嵌入字体，其中真正承载信息的文字可能只占百分之几。
而 Agent 读不了这些。或者说，Agent 读它们的代价高得离谱——它必须把这些复杂的二进制格式翻译成纯文本，在翻译过程中丢失结构、丢失语义，再烧掉几千个 token 去「看懂」一份本可以用一段 Markdown 说清楚的东西。
所以我们相信：在 Agent 的时代，Word / Excel / PPT 只是用 token 友好的方式重新表达。文档是 Markdown，表格是 CSV，幻灯片是结构化的 Markdown 或 JSON。这不是退步，而是一次正本清源——回到「活字」的精神：让信息本身成为最小单位，而不是让格式绑架信息。
再往前推一步。
今天我们已经看到这样的格局：Claude Code 在你的笔记本上写代码，Claude 手机 App 在地铁里帮你回邮件，某个开源的 Open Claw 在你的服务器上跑批处理，下个月还会有新的 Agent 出现。
Agent 是 CPU，是算力。每个人在不同场景会用不同的 Agent——工作时用一个，写作时用一个，研究时用一个；电脑上一个，手机上一个，平板上又是一个。Agent 应该是可替换的、即插即用的。
但数据应该是固定的。你的笔记、你的文档、你的代码、你的研究资料——这些不应该被绑死在某一个 Agent、某一家公司、某一台设备上。它们应该比任何一个 Agent 都活得更久。
所以 huozi.app 就是大家都有的那个数字 U 盘。把它挂到任何一个 Agent 上——Claude Code、Cursor、Claude Desktop、自己写的脚本——Agent 读到的永远是同一份文件树，写入的永远落在同一个版本化的工作空间里。
换一个 Agent，U 盘还在。换一台设备，U 盘还在。换一个时代，U 盘还在。
知识要传承，必须先有一个稳定的器皿。在木刻的时代，那是藏纸和经版；在印刷的时代，那是活字和纸张；在 Agent 的时代，那是 huozi.app：一个真正即插即用的 workspace，给所有 Agent 共享、给你一个人所有，历代可查，随处可挂。
以文载道，活字为器。
Huozi (活字) is the Chinese word for movable type. We chose it as the name of this product because we wanted to say three things at once: a debt to a long tradition of knowledge-vessels, a response to what the Agent era actually needs, and a thing we believe is obvious but nobody has yet built.
In 1041, during the Song dynasty, a commoner named Bi Sheng invented movable clay type. It was a radical abstraction: a unit of knowledge was pried loose from the woodblock it was carved on and became something that could be rearranged, reused, and passed around. For the first time, knowledge was decoupled from the object that carried it.
Meanwhile, in the mountains of Derge in western Sichuan, the Derge Printing House has for nearly three centuries kept over 320,000 wooden printing blocks alive. Through dynasties, wars, and revolutions, monks there have gone on inking, printing, and binding without pause. No server, no company has ever credibly offered that kind of lifespan. Derge could offer it because the knowledge was carved into something stable, readable, reproducible — wood, ink, and Tibetan paper.
To us this is one continuous thread. For knowledge to survive, it needs a vessel that outlives any particular tool or dynasty. Movable type was one form of that vessel. We believe the Agent era needs another.
Word, Excel, and PowerPoint were designed for human hands and human eyes. A single .docx is a zip of XML, styles, embedded fonts, and shape objects. The fraction of the file that is actually text is often a few percent.
Agents can’t really read those. Or rather, reading them is absurdly expensive — the Agent has to translate a complex binary format into plain text, lose structure along the way, and burn thousands of tokens to understand something that could have been expressed in a few lines of Markdown.
So here is our bet: in the Agent era, Word / Excel / PPT simply get re-expressed in token-friendly ways. Documents become Markdown. Tables become CSV. Slides become structured Markdown or JSON. This isn’t a step backwards — it’s returning to the spirit of movable type: let information itself be the smallest unit, not the wrapper that traps it.
Now take one step further.
Look at where we already are: Claude Code writing code on your laptop; the Claude mobile app answering emails on the subway; some open-source Open Claw running batch jobs on your server; next month, a new Agent you haven’t heard of yet.
Agents are the CPU. They are raw compute. Every person uses different Agents in different contexts — one for work, one for writing, one for research; one on the desktop, one on the phone, one on the tablet. Agents should be swappable. They should be plug-and-play.
But data should stay put. Your notes, your documents, your code, your research — none of that should be locked to one particular Agent, one particular company, or one particular device. It should outlive all of them.
That is what huozi.app is: the digital USB drive everyone has. Mount it into any Agent — Claude Code, Cursor, Claude Desktop, your own script — and the Agent reads the same file tree, writes into the same versioned workspace. Switch Agents; the drive is still there. Switch devices; still there. Switch eras; still there.
For knowledge to be passed on, you first need a stable vessel. In the age of woodblock, it was Tibetan paper and carved wood. In the age of print, it was movable type and paper. In the age of Agents, it is huozi.app — a truly plug-and-play workspace, shared across every Agent, owned by you, versioned across generations, mountable anywhere.
Words carry the Way. Huozi, the vessel.