obsidian-second-brain
obsidian-second-brain is a skill plugin that gives Claude Code, Codex and other agents persistent memory stored in your Obsidian notes, for people who keep their knowledge in Obsidian.
What it is good for
- Keeping AI assistants from forgetting decisions between sessions
- Turning meeting notes and documents into linked Obsidian notes
- Searching your own notes by meaning instead of exact words
- Sharing one work log across several AI coding agents
At a glance
- Who it is for
- Setup
- Guided command-line setup
Level 4 of 5. You copy and paste commands into a terminal by following the instructions. Comfortable territory for vibe coders.
- Cost
- Free and open source
- Type
- Skill or plugin
- Tasks
- Works with
- Claude Code, Codex, Cursor, Grok Bot, Obsidian
Momentum
- Rank this week
- Not ranked yet
- Best rank
- None yet
- GitHub stars
- 5,101
GitHub numbers as of Nov 2, 2026. Updated weekly.
Official links
Setup steps are on the official pages. We do not repeat them here, since they change.
Questions
- Is obsidian-second-brain free?
- Yes. It is free and open source (MIT license).
- Do I need to know how to code to use obsidian-second-brain?
- You do not need to write code, but setup means copying and pasting commands into a terminal by following its instructions.
- What does obsidian-second-brain work with?
- According to its own documentation, it works with Claude Code, Codex, Cursor, Grok Bot, and Obsidian.
- What is obsidian-second-brain good for?
- Keeping AI assistants from forgetting decisions between sessions, turning meeting notes and documents into linked Obsidian notes, searching your own notes by meaning instead of exact words, and sharing one work log across several AI coding agents.
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