I built a second brain with Claude Code

Everyone's using AI wrong. You ask ChatGPT a question, you get an answer, you close the tab — and a week later, it's gone. This is how I built a second brain that actually works — notes that persist, agents that share memory, and a system that gets smarter the more I use it. Built on Obsidian + Claude Code + a handful of sub-agents. ⏱️ Timestamps 0:00 The problem 0:25 Why AI notes rot 1:10 The stack 2:15 The agents in action 4:00 Build your own 4:45 What's next 🧰 Tools mentioned • Obsidian (free): https://obsidian.md • Claude Code: https://claude.ai/code • Notion (optional): https://www.notion.so 🛠️ Also in my stack • ElevenLabs: https://go.nzavo.com/c1/v001-second-brain/elevenlabs • Tally: https://go.nzavo.com/c1/v001-second-brain/tally • Raycast: https://go.nzavo.com/c1/v001-second-brain/raycast 📺 Next video (Friday): 5 Claude Code skills I actually use every week #secondbrain #obsidian #claudecode #aitools #solopreneur