A Vault That Rewrites Itself: obsidian-second-brain and the Karpathy LLM Wiki Pattern
Description and use
<p>Two tools most of us own ignore each other completely. An Obsidian vault with hundreds of notes nobody rereads. An AI agent in the terminal whose every session starts from zero, as if the past never happened. The <a href="https://github.com/eugeniughelbur/obsidian-second-brain" rel="noopener noreferrer">obsidian-second-brain</a> repository glues them together: 4.7k stars, MIT, authored by Eugeniu Ghelbur. The README's own formula: <strong>an evolution of Karpathy's LLM Wiki pattern, a vault that rewrites itself</strong>.<br> Here's a review, plus why I read the whole thing with deja vu: my
Problem
<p>Two tools most of us own ignore each other completely. An Obsidian vault with hundreds of notes nobody rereads. An AI agent in the terminal whose every session starts from zero, as if the past never happened. The <a href="https://github.com/eugeniughelbur/obsidian-second-brain" rel="noopener noreferrer">obsidian-second-brain</a> repository glues them together: 4.7k stars, MIT, authored by Eugeniu Ghelbur. The README's own formula: <strong>an evolution of Karpathy's LLM Wiki pattern, a vault that rewrites itself</strong>.<br> Here's a review, plus why I read the whole thing with deja vu: my
Outcome
<p>Two tools most of us own ignore each other completely. An Obsidian vault with hundreds of notes nobody rereads. An AI agent in the terminal whose every session starts from zero, as if the past never happened. The <a href="https://github.com/eugeniughelbur/obsidian-second-brain" rel="noopener noreferrer">obsidian-second-brain</a> repository glues them together: 4.7k stars, MIT, authored by Eugeniu Ghelbur. The README's own formula: <strong>an evolution of Karpathy's LLM Wiki pattern, a vault that rewrites itself</strong>.<br> Here's a review, plus why I read the whole thing with deja vu: my
Evidence
A Vault That Rewrites Itself: obsidian-second-brain and the Karpathy LLM Wiki Pattern
- Record date: 2026-10-08T07:40:59.000Z