Self-organizing AI second brain for Obsidian + Claude Code. Drop any source and Claude reads, links, and files it into one connected knowledge graph of plain Markdown you own. AI note-taking, personal knowledge management (PKM), and an open-source Notion alternative. Based on Karpathy's LLM Wiki pattern.
claude-obsidian is a local knowledge system that turns source material into linked, source-cited Markdown notes in an Obsidian vault for use with Claude Code and compatible agent hosts. People use it to capture research, retrieve evidence-grounded answers, maintain knowledge, and map connections while retaining ownership of their files. The catalogue entries provide workflows and extensions for operating this knowledge system.
Latest release v2.2.0 — Claude Obsidian v2.2.0 - Backlog Triage · 10 Sept 2026
3 files for GitHub Copilot, Claude Code, Codex, OpenCode and Gemini CLI: claude-obsidian copilot-instructions.md, claude-obsidian AGENTS.md, claude-obsidian GEMINI.md — 1,528 tokens loaded in every session.
.github/copilot-instructions.md A 186 tok AGENTS.md A 1,123 tok GEMINI.md A 219 tok These files are AgriciDaniel/claude-obsidian's own configuration — they tell GitHub Copilot, Claude Code, Codex, OpenCode and Gemini CLI how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.