Obsidian Second Brain

Claude operates your Obsidian vault as a self-rewriting knowledge base. An evolution of Karpathy's LLM Wiki pattern: sources rewrite existing pages instead of just appending, contradictions reconcile automatically, and scheduled agents maintain the vault while you sleep. Everything worth remembering gets saved. Every update propagates everywhere it belongs.

Quick Start

0. Choose vault access method (in order of preference)

Try these methods in order. Use the first one available:

Method A — MCP server (mcp-obsidian): If the MCP tools (get_file_contents, list_files_in_vault, search, append_content, write_file) are available, use them.

Method B — Direct filesystem (fallback, always works): Use standard file tools (Read, Write, Edit, Glob) against the vault path. The vault is plain markdown — all operations work without MCP, just more verbosely.