Agrici Daniel developed claude-obsidian, a free Claude Code plugin that transforms Obsidian into a self-organizing AI second brain by automatically reading sources, writing linked Markdown notes, and maintaining an index without manual filing. Built on Andrej Karpathy's LLM Wiki pattern, it avoids vector databases and proprietary formats, offering an open-source, data-owned alternative that saves time by compounding knowledge across 15 integrated skills. The latest v1.9 release enhances retrieval accuracy, collaboration safety, and introduces a thinking framework, enabling users to efficiently build and maintain richly connected knowledge bases within Obsidian.
https://agricidaniel.com/blog/claude-obsidian-ai-second-brain