Karpathy's Second Brain

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Karpathy's Second Brain

An agentic knowledge management system for Obsidian powered by a multi-model Claude stack.

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Description

A sophisticated self-organizing vault inspired by Andrej Karpathy's 'llm-wiki' concept. It utilizes a hierarchical agent structure where Claude Haiku 5.5 scouts new information, Jev routes tasks, and Claude Opus 5.5 acts as the primary 'librarian' to write and link markdown pages. The build includes automated nightly maintenance scripts and a strict behavior contract via CLAUDE.md.

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Details

Why this is interesting: A highly practical and cost-optimized implementation of autonomous knowledge management using the latest Claude models.
Built with: Opus 5.5 Jev Sonnet 5.5 Haiku 5.5
Links: View tweet
Tags: #obsidian #knowledge-management #agentic-workflow #automation

Discovered: X
First posted: X · Oct 29, 2026
Listed: Added 2h ago
Build: Strong
Models: Strong

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