An open-source, privacy-first, self-hosted knowledge workspace where humans and AI agents work together
SiYuan is an open-source, self-hosted knowledge workspace for organizing personal information with Markdown, linked content blocks, documents, and databases. It is designed for privacy-conscious people and supports collaboration between humans and AI agents. Its catalogue instruction helps agents work with SiYuan.
Latest release v3.8.9 · 29 Oct 2026
1 file for Codex and OpenCode: siyuan AGENTS.md — 10,916 tokens loaded in every session.
AGENTS.md A 10,916 tok These files are siyuan-note/siyuan's own configuration — they tell Codex and OpenCode how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.