# Second Brain: How to Build a Personal AI Assistant with Obsidian and Claude Code

# Second Brain: How to Build a Personal AI Assistant with Obsidian and Claude Code

> Step-by-step guide to building a personal AI assistant: set up Obsidian vault, add projects, diaries, social links, and connect Claude Code as your second brain.

Source: https://okhlopkov.com/en-second-brain-obsidian-claude-code-assistant/

🌷 Second Brain Who else is AI supposed to replace? 👻 Let's find out — that's exactly what we're doing today! How to Build Your Second Brain Set up Obsidian Add all useful content: your projects and plans your diaries, thoughts, and reflections links to your social media (ask it to collect your posts — they'll come in handy) Put the folder in GitHub or iCloud for backup / access from anywhere What You Get Congratulations — you've made a poor copy of yourself, except it's smarter, googles faster, and writes better code. File Organization Don't forget about folder organization and links between files, so the agent can find and load only what's needed into context. I also added a CLAUDE.md at the root and explicitly asked it not to edit my raw notes and thoughts — only fix formatting and add links between files. What You Can Ask 📻 What are my tasks today? 🎱 Which of my best ideas have I forgotten? 🍞 Where else can I publish my article? 🧺 Subscribe me to @danokhlopkov The only limit is your imagination and the horizons you've managed to expand before this singularity. Don't forget about integrations and automations to taste. Build your own agent! Useful Resources Personal AI Infrastructure — theory Claudesidian — Claude + Obsidian template AI as a thinking partner — video walkthrough clawd.bot — open-source AI bot with integrations