Even after learning a feature, you're not sure how to actually use it in your notes.
And it feels like you need to know how to code to use it properly.
People say links are great, but what to link and how remains confusing.
helps you get the hang of it
✅ I've included notes I actually wrote myself. (More than 50 of them)
✅ Claude Code commands and skills are included.
✅ This vault is continuously updated by the author of 『Your Second Brain Is Obsidian, with Claude Code』.

A folder structure that supports both PARA and Zettelkasten. There are also example notes covering Zettelkasten. Recommended for anyone who has read a book on Zettelkasten and wants to see it in practice.
The plugins and theme settings I consider essential are already configured.
There's a mini course included. I've gathered the techniques that made me think "this feature is genuinely great" while using Obsidian.
Templates you'll find useful
Includes 10 slash commands and 2 agent skills you can use together with Claude Code.
/summarize | Summarize a note's contents and add it as a callout |
/visualize | Visualize a note's contents as a Mermaid diagram |
/tidy | Fix typos and tidy up the structure |
/concepts | Extract key concepts and link them to existing notes |
/permanent | Turn an idea into an atomic permanent note |
/atomic | Check a note for atomicity → split and link it if it holds multiple concepts |
/daydream | Find orphaned notes and suggest connections |
/ideas-for-writing | Suggest writing topics from subjects you've accumulated enough material on |
/link | Find existing notes related to the current one and link them |
/dashboard | Build your content into a single HTML dashboard and open it |
/youtube | Organize YouTube subtitles into a reference note |
/book | Pull in a book's table of contents and create a reference note |
For skills that require external tools (yt-dlp, networkx, playwright), you can ask Claude Code to install them all at once.
The newsletters I published on Maily are included in the references/newsletters folder.
This isn't me trying to drive sales through FOMO.
It's because I plan to keep updating this vault over time.
So as the quality goes up, I intend to raise the price to match.
Buy once and you'll be able to keep downloading the updated contents.
For the vault's latest update date, see the top of this page.
Yes, you can. That said, I'd recommend getting reasonably familiar with how Obsidian works first. This vault focuses on vault setup rather than explaining Obsidian's features.
You can build it yourself by imitating the starter kit vault, or you can just copy over the .obsidian folder for the Obsidian settings. Be careful: overwriting will replace your existing settings.
It covers Obsidian's features and how to integrate them with Claude Code, so I'd recommend giving it a read — even if you borrow it from a library. That said, if you're already reasonably comfortable with Obsidian and Claude Code, you can skip the book and just work from the vault.


