Your Obsidian Vault Is a Knowledge Graph

Fri, 03 Jul 2026 00:00:00 +0000

🎬 Also available as a blog walkthrough video: a narrated screencast of this post.

TL;DR: Tony Seale spent six months working almost entirely inside a markdown wiki wired to an LLM, and argued the most useful bridge between fuzzy language and precise logic was not exotic, it was plain markdown with structure around it. I want to take that one step further with a claim about tooling people already have: a folder of markdown notes, linked with wikilinks and tagged with frontmatter, is already a semantic knowledge graph. Wikilinks are edges, frontmatter is typed node properties, folders are namespaces. That is the exact shape an AI agent wants for its long-term memory, and it is why my own setup, kiro-cli reading an Obsidian vault, traverses that graph every day, including the session that wrote this post. You still graduate to a real graph database when you need to, and I will draw that boundary honestly.

The Realization I Kept Having Backwards

For a long time I thought of my notes and my agent as two separate things. The notes were where I wrote things down. The agent was the clever part that did work. The notes were storage; the agent was intelligence.

schristoph.online

Your Obsidian Vault Is a Knowledge Graph

The Realization I Kept Having Backwards