LLM Wiki Skill: Build a Second Brain With Claude Code and Obsidian

Andrej Karpathy published an LLM Wiki gist last week. 5,000+ stars. Nearly 3,000 forks. The idea: instead of retrieving documents every time you ask a question, have an LLM compile and maintain a persistent knowledge base. I took the pattern and built it as a reusable Claude Code skill. Four commands: → /wiki-init to bootstrap → /wiki-ingest to process sources → /wiki-query to synthesize answers → /wiki-lint to health-check Two use cases where I have seen it work: CTO Decision Wiki — architectu...