obsidian-second-brain: 4.5k-star open-source persistent memory for Claude Code via Obsidian
tom_doerr · x · 2026-09-19
obsidian-second-brain (4.5k GitHub stars) gives Claude Code, Grok Bot and 6 other CLI agents persistent memory stored as plain Markdown in your Obsidian vault. It updates existing pages instead of appending new ones and auto-reconciles contradictions to keep the knowledge base accurate. The project ships 45 commands including hybrid semantic search, self-rewriting notes, key-less web research, and scheduled agents that maintain the vault in the background—so you stop re-explaining projects, decisions and people every session.
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