An Obsidian plugin that embeds Claude Code/Codex as an AI collaborator in your vault
Claudian is an Obsidian plugin that embeds AI coding agents in a note vault, allowing them to read, edit, search, and manage files there. It is for users who want to work with agents alongside their notes, using features such as inline editing, plans, reusable prompts, and external tool connections.
Latest release 2.3.34 · 26 Oct 2026
2 files for Codex, OpenCode and Claude Code: claudian AGENTS.md, claudian CLAUDE.md — 921 tokens loaded in every session.
▶ How To Build The ULTIMATE AI Second Brain (Obsidian + Claude Code) KJ Rainey · about YishenTu/claudian · on YouTube → AGENTS.md A 916 tok CLAUDE.md A 5 tok These files are YishenTu/claudian's own configuration — they tell Codex, OpenCode and Claude Code 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.