open-second-brain
Open Second Brain is a memory layer for AI agents that lives in an Obsidian vault. Agents read and write it through MCP servers, lifecycle hooks and the o2b CLI.

Open Second Brain is a memory layer for AI agents that lives in an Obsidian vault. Agents read and write it through MCP servers, lifecycle hooks and the o2b CLI.
Record taste signals and apply-evidence events into the Brain observing-memory layer of Open Second Brain. INVOKE this skill (and…
Use when the user explicitly mentions codegraph, asks structural code questions such as callers/callees/impact, asks where a…
Set up, evaluate or turn off the optional Open Second Brain decision-model feature (typed judgments that rerank search, pick…
Bring Open Second Brain semantic search online — embedding API key, sqlite-vec extension, first reindex, optional periodic…
Use Open Second Brain to read, write, and maintain an agent-owned second brain in an Obsidian-compatible Markdown vault. The…
Use when adding, renaming, reviewing, or explaining Brain schema tokens, aliases, prefixes, link types, extractability, or expert…
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