Claudian

Claudian

An Obsidian plugin that embeds AI coding agents (Claude Code, Codex, Grok Build, OpenCode, Pi, DeepSeek Harness, and more to come) in your vault. Your vault becomes the agent's working directory — file read/write, search, bash, and multi-step workflows all work out of the box.

Features & Usage

Open Claudian interface from the ribbon icon or command palette. Everything works like your familiar coding agent, Claude Code, Codex, Grok Build, OpenCode, Pi, and DeepSeek Harness — talk to the agent, and it reads, writes, edits, searches and run commands in your vault.

Inline Edit — Select text or start at the cursor position + hotkey to edit directly in notes with word-level diff preview.

Projects — Group sessions that work toward a shared goal. Every member shares the project's instructions and a memory file that the agents keep current, and the agents can cooperate by finding, reading and messaging each other. See the Projects guide.

Zen Mode — Collapse the sidebar holding Claudian and the chat moves to a compact composer at the bottom of your notes, with a one-line activity preview and the conversation one click away.

Slash Commands & Skills — Type / or $ for reusable prompt templates or Skills from user- and vault-level scopes.

@mention — Type @ to reference vault files, folders and other Claudian sessions.

Cross-Session Messaging — Let agents read, message, steer or interrupt other Claudian sessions, or start new ones on any provider. See the Cross-session messaging guide.

Side Chat (/side or /btw) — Explore a separate, temporary conversation with follow-ups and tools while keeping the main chat unchanged.

MCP Servers — Connect external tools through each coding agent's native CLI-managed MCP configuration.

Tabs & Session Management — Use multiple…