Hands-on, step-by-step tutorial for setting up an Obsidian vault that works as an agent-maintained knowledge base — combining Karpathy’s LLM Wiki pattern with a developer’s “second brain” (ADRs, debriefs, projects). One afternoon to set up, running forever.
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Why this article exists
In the first article of this series, I showed why Obsidian won as the base for personal LLM harness — layer separation, data sovereignty, open format, community convergence. Now we leave the conceptual and enter the concrete: by the end of this article, you’ll have a working vault where you say /wiki-ingest and Claude reads the article, extracts concepts, creates pages, links them with existing notes, and updates the index. You ask /wiki-query "what do I know about X?" and it answers by synthesizing what's in your vault, with links to sources....