reddit · SideProject · 10-26 23:50 52 分 ← 返回列表

A shared brain for your team and your coding agents: decisions and gotchas with sources, so nobody guesses

Every team has someone who knows why the auth service retries 3 times, or which flag you never touch on Fridays. That person gets pinged all day, and when they're away the answer goes with them. Asking has a cost too: you don't want to interrupt, so you guess or you wait. I built Cairn to make asking cheap. How it works You (or your coding agent) save small entries as you work: a decision, a gotcha, a preference, some context. Archiving always asks you first. Teammat

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AI 分析

痛点：团队中的「隐性知识」，例如某个决定的来龙去脉、踩过的坑、周五绝不能动的开关，只存在于少数人脑中；人类同事和 AI 编码助手都只能靠猜或反复打断对方来获取

目标用户：使用 Claude Code / Codex / Cursor 等 AI 编码助手的 5-50 人工程团队，尤其是知识高度集中在少数资深成员身上的初创团队

证据：Every team has someone who knows why the auth service retries 3 times, or which flag you never touch on Fridays. That person gets pinged all day, and when they're away the answer goes with them. / Asking has a cost too: you don't want to interrupt, so you guess or you wait. I built Cairn to make asking cheap. / Without that it guesses, or it confidently undoes a decision someone made for a good reason. / I haven't measured an improvement in code quality, so I won't claim a ...

变现：按席位订阅（$8-15/人/月），免费版限 1 个 brain + 200 条 entry，团队版按人数收费；后续可做企业私有部署（自托管）和 SSO/审计日志的增值包

MVP：两周内做出：MCP server（Claude Code / Cursor 可直接接入）+ 极简 Web 端录入与检索 + 基于 pgvector 的语义检索 + 每条答案强制附「谁、何时、原始链接」的来源引用；不做权限体系和编辑器，只做 save / ask / cite 三个动作，用一个真实团队内测

竞品：Notion / Confluence（团队 Wiki，但不接入 Agent）、Glean、Slite、Tettra、mem0 / Zep（Agent 记忆层）、CLAUDE.md / AGENTS.md + 仓库内文档、Cursor Rules / .cursorrules

摘要：作者在 r/SideProject 发布 Cairn：一个让人类和 AI 编码助手共享「团队脑」的工具，把决策、坑和偏好存成带来源引用的小条目，通过 MCP 被 Claude Code、Codex、VS Code 调用，证据不足时明确说「不知道」而不是编造。痛点真实且与 MCP 生态的时机契合，但帖子只有创始人自述，没有任何付费或收入数据，且 Notion、Glean、mem0、AGENTS.md 等替代方案密集，差异化只能靠「来源可追溯 + 双端共享」这一窄缝。