byeugeniughelbur· 1 skill
Operate any Obsidian vault as a living, self-rewriting second brain (an evolution of Karpathy's LLM Wiki pattern: sources rewrite existing pages, contradictions reconcile automatically, scheduled agents maintain the vault while you sleep). Use this skill whenever the user asks Claude to read, write, update, search, or manage their Obsidian vault - including saving notes from conversation, creating daily entries, updating kanban boards, logging dev work, managing people notes, capturing decisions, tracking deals, or maintaining any vault structure. Also triggers when the user wants to bootstrap a new vault from scratch, run a vault health check, or drop a _CLAUDE.md into their vault so all Claude surfaces share the same operating rules. Includes a research toolkit (7 commands: /x-read, /x-pulse, /research, /research-deep, /notebooklm, /youtube, /podcast) for AI-powered research via Grok, Perplexity, NotebookLM, YouTube, and podcast feeds - findings save to the vault automatically following the AI-first vault rule. Use proactively whenever the conversation produces information worth preserving (decisions, people met, projects started, tasks completed, lessons learned, research findings).
$npx -y skills add eugeniughelbur/obsidian-second-brain --skill obsidian-second-brainInstalls into the current project.
Run `npx skills use "https://github.com/eugeniughelbur/obsidian-second-brain" --skill "eugeniughelbur/obsidian-second-brain"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/eugeniughelbur/obsidian-second-brain" that are relevant to the current task. Run `npx skills add "https://github.com/eugeniughelbur/obsidian-second-brain"` and select the relevant skills, then follow their instructions.
| 1 | <p align="center"> |
| 2 | <a href="https://github.com/eugeniughelbur/obsidian-second-brain"> |
| 3 | <img src="media/banner.png" alt="obsidian-second-brain: one brain, seven platforms, 45 commands. A cross-platform skill for Obsidian that runs on Claude Code, Codex, Gemini, OpenCode, Antigravity, Hermes, and Pi." width="100%" /> |
| 4 | </a> |
| 5 | </p> |
| 6 | |
| 7 | <p align="center"> |
| 8 | <a href="#install"><img src="https://img.shields.io/badge/Claude_Code-D97757?style=for-the-badge&logo=anthropic&logoColor=white" alt="Claude Code" /></a> |
| 9 | <a href="#codex-cli--gemini-cli--opencode"><img src="https://img.shields.io/badge/Codex_CLI-412991?style=for-the-badge&logo=openai&logoColor=white" alt="Codex CLI" /></a> |
| 10 | <a href="#codex-cli--gemini-cli--opencode"><img src="https://img.shields.io/badge/Gemini_CLI-4285F4?style=for-the-badge&logo=googlegemini&logoColor=white" alt="Gemini CLI" /></a> |
| 11 | <a href="#codex-cli--gemini-cli--opencode"><img src="https://img.shields.io/badge/OpenCode-181818?style=for-the-badge&logo=opensourceinitiative&logoColor=white" alt="OpenCode" /></a> |
| 12 | </p> |
| 13 | |
| 14 | <p align="center"> |
| 15 | <strong>One codebase. Six CLIs. Same brain.</strong> |
| 16 | </p> |
| 17 | |
| 18 | <p align="center"> |
| 19 | <img src="https://img.shields.io/badge/Obsidian-Vault-7C3AED?style=for-the-badge&logo=obsidian&logoColor=white" alt="Obsidian Vault" /> |
| 20 | <img src="https://img.shields.io/github/v/release/eugeniughelbur/obsidian-second-brain?style=for-the-badge&color=green" alt="Release" /> |
| 21 | <img src="https://img.shields.io/badge/license-MIT-blue?style=for-the-badge" alt="License: MIT" /> |
| 22 | <img src="https://img.shields.io/github/stars/eugeniughelbur/obsidian-second-brain?style=for-the-badge&color=yellow" alt="Stars" /> |
| 23 | <a href="https://github.com/sponsors/eugeniughelbur"><img src="https://img.shields.io/badge/Sponsor-EA4AAA?style=for-the-badge&logo=github-sponsors&logoColor=white" alt="Sponsor" /></a> |
| 24 | </p> |
| 25 | |
| 26 | <h1 align="center">obsidian-second-brain</h1> |
| 27 | |
| 28 | <p align="center"> |
| 29 | <strong>An evolution of <a href="https://gist.github.com/karpathy/442a6bf555914893e9891c11519de94f">Karpathy's LLM Wiki pattern</a>: a vault that rewrites itself.</strong> |
| 30 | <br /><br /> |
| 31 | <em>Every source updates existing pages instead of just appending new ones. Contradictions reconcile automatically. Your vault compounds while you sleep.</em> |
| 32 | <br /><br /> |
| 33 | <strong>Powered by <a href="references/freshness-policy.md">OKM - Open Knowledge Metabolism</a>:</strong> <em>every stored fact is timeless, dated, or a pointer - so your knowledge base never fills with facts that used to be true.</em> |
| 34 | <br /><br /> |
| 35 | <em>45 commands · auto-synthesis · thinking tools that argue with you</em> |
| 36 | <br /><br /> |
| 37 | <em>live research from X, the web, and YouTube · 4 scheduled agents · 4 role presets</em> |
| 38 | <br /><br /> |
| 39 | <em>write-time AI-first validator · <code>/create-command</code> interview flow · multilingual trigger schema</em> |
| 40 | <br /><br /> |
| 41 | <a href="DEMOS.md">Demos</a> · |
| 42 | <a href="#the-vault-is-alive">OKM</a> · |
| 43 | <a href="#what-happens-when-you-install-this">See it in action</a> · |
| 44 | <a href="#45-commands">All commands</a> · |
| 45 | <a href="#install">Install</a> · |
| 46 | <a href="#choose-your-preset">Presets</a> · |
| 47 | <a href="https://github.com/eugeniughelbur/obsidian-second-brain/discussions">Discussions</a> |
| 48 | </p> |
| 49 | |
| 50 | <p align="center"> |
| 51 | <a href="DEMOS.md"> |
| 52 | <img src="media/obsidian-save.gif" alt="One /obsidian-save command turns a conversation into five cross-linked AI-first notes: a person, a project with the decision, a task, a board card, and the daily note." width="100%" /> |
| 53 | </a> |
| 54 | <br /> |
| 55 | <em>One <code>/obsidian-save</code> - five cross-linked notes. Real footage, synthetic vault. <a href="DEMOS.md">More demos →</a></em> |
| 56 | </p> |
| 57 | |
| 58 | <p align="center"> |
| 59 | <strong>v0.14 - The Harvest (July 2026):</strong> we scanned all 408 forks of this repo and shipped the best ideas back upstream, crediting every author.<br/> |
| 60 | <em>Multi-turn /obsidian-brainstorm, bounded vault r |