NicholasSpisak

NicholasSpisak / second-brain

Public

LLM-maintained personal knowledge base for Obsidian. Based on Andrej Karpathy's LLM Wiki pattern.

agent-skills ai knowledge-base llm markdown
46
3
100% credibility
Found Apr 08, 2026 at 46 stars -- GitGems finds repos before they trend. Get early access to the next one.
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AI Analysis
Shell
AI Summary

Second Brain is a personal knowledge base system where an AI agent organizes raw notes, articles, and sources into a structured, linked wiki viewable in Obsidian.

How It Works

1
🔍 Discover Second Brain

You learn about a helpful way to turn scattered notes and articles into a smart, organized personal wiki using your AI helper.

2
🛠️ Add tools to your AI

You ask your AI assistant to include the Second Brain features, unlocking commands to build and manage your knowledge base.

3
🪄 Set up your wiki home

Chat with your AI using the setup guide—it asks simple questions about name, location, and focus, then creates your organized folder structure.

4
📎 Save articles to inbox

Use a web clipper browser tool to grab articles, papers, or notes and drop them into your wiki's raw materials folder.

5
🤖 AI builds the wiki

Tell your AI to process the new items—it reads everything, writes summaries, connects ideas, and updates your wiki pages automatically.

6
📖 Browse in Obsidian

Open the Obsidian app, select your wiki folder, and explore linked pages, graphs, and the master index like a personal library.

7
❓ Ask and maintain

Query your wiki for answers or run a health check to fix links and keep everything fresh and connected.

🎉 Your knowledge grows

You now have a living second brain—a searchable, AI-updated collection of insights that expands as you add more.

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Star Growth

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AI-Generated Review

What is second-brain?

This second brain GitHub project turns Obsidian into an LLM-maintained personal knowledge base, inspired by Andrej Karpathy's LLM Wiki pattern. Drop articles, notes, or clips into a raw folder, and AI agents process them into a structured wiki with sources, entities, concepts, and synthesis pages—complete with an index and log. Install via a simple npx command into tools like Claude Code or Cursor using Agent Skills, then use commands like /second-brain for setup, /second-brain-ingest to build pages, /second-brain-query for Q&A, and /second-brain-lint for maintenance.

Why is it gaining traction?

Unlike static second brain Notion templates or manual PARA second brain setups, this obsidian second brain GitHub tool automates curation with your AI agent as librarian, generating wikilinks and graph-ready Obsidian vaults. Developers dig the idempotent wizard for quick vaults, web clipper integration, and optional CLI tools like qmd for fast searches on growing wikis. It's a second brain AI GitHub hook for Tiago Forte fans wanting dynamic, agent-driven knowledge without boilerplate.

Who should use this?

Researchers clipping papers or devs hoarding tutorials will love dumping raw content and getting instant wiki pages. Knowledge workers migrating from second brain Notion template free setups to Obsidian benefit from AI synthesis and entity tracking. AI tinkerers with Claude or Cursor, building a second brain app GitHub style, get the most from multi-agent compatibility.

Verdict

Promising early second brain project GitHub with solid docs and a clever skills protocol, but at 46 stars and 1.0% credibility score, it's immature—expect tweaks as you scale. Try it if you're prototyping your second brain Obsidian workflow; skip for production unless you contribute.

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