Most second brains are write-only. You save notes for years, then never find them again.
An agent that can actually work inside your vault changes that:
- Skills over plugins: Claude learns Obsidian syntax natively, wikilinks, embeds, callouts, properties.
- It writes .base files for you, real database views across your notes with zero manual setup.
- The agent can read, write, and reason inside the vault, not just answer questions about it.
- Files stay plain markdown on your disk, so there is no lock-in and nothing to migrate.
- 27,000 GitHub stars in days, the demand was already there.
A vault you can search is a library. A vault an agent can edit is a teammate.
CyrilXBT (@cyrilXBT)
THE CREATOR OF OBSIDIAN JUST TURNED YOUR NOTE VAULT INTO AN AI AGENT.
Not a plugin.
Not an integration.
A full agent skills system that teaches Claude Code, Codex, and OpenCode to READ, WRITE, and REASON inside your Obsidian vault like a power user.
27,000 GitHub stars in days.
Here is what shipped at launch:
obsidian-markdown — wikilinks, embeds, callouts, properties, the full Obsidian flavor Claude now understands natively.
obsidian-bases — Claude can create .base files with views, filters, formulas, and summaries.
json-canvas — Claude builds .canvas files with nodes, edges, groups, and connections.
obsidian-cli — Claude controls your vault, develops plugins and themes directly from the terminal.
defuddle — strips web pages into clean Markdown so you stop burning tokens on clutter.
Install the whole thing in one line:
npx skills add github.com/kepano/obsidian-s…
Then connect it to Claude Code, Codex, or OpenCode.
That is it.
Your second brain now has an agent inside it that understands how Obsidian actually works.
Not a generic AI that pastes text into files.
An agent that knows what a wikilink is. What a callout is. What a canvas is.
Built on the open Agent Skills spec. MIT license. Free forever.
The gap between people using Obsidian as a note app and people using it as an AI operating system just got wider.
Bookmark this before you open your vault today.
Follow @cyrilXBT for every build that changes how Obsidian and Claude work together.
— https://nitter.net/cyrilXBT/status/2062848159215493176#m