A trending open-source project turns Obsidian into a persistent memory layer for Claude Code, Codex, and Google Antigravity, with no API keys or servers required.
- avenoxbeyin gives Claude Code, Codex, and Antigravity persistent cross-session memory via an Obsidian vault
- V3.5.1 adds multi-machine support, parallel sessions, and per-session handoff cards
- Install with one pasted message to the agent, or run
scripts/install_v3.pymanually - Three skills installed: beyin, beyin-doktor, beyin-guncelle, all under
.agents/skills - Local word search only, no embeddings; engine never calls a model itself
- MIT licensed, Python 3.11+, no API keys, no servers, no background daemons
The Turkish-language open-source project avenoxbeyin has reached GitHub’s Trending list with a focused solution for command-line coding agents. It preserves working context from Claude Code, Codex, and other supported clients after a session ends, storing the memory as readable Markdown files in an Obsidian vault.
Version 3.5.1 adds support for parallel sessions and multiple machines that share the same vault. Each session receives its own handoff card, reducing the chance that concurrent agents overwrite one another’s state. Because the files remain inside the vault, every machine needs access to the same synchronized copy. The multi-machine guide covers the setup.
The MIT-licensed project requires Python 3.11 or newer. It needs no Git installation, pip package, API key, Mem0 account, external database, or continuously running server. Developers can inspect, edit, sync, and back up the stored memory with the same tools they use for other Markdown notes.
A one-message install #
The documented installation flow starts with an Obsidian vault, which is a folder containing Markdown notes and related files. After opening that folder as a workspace in Claude Code, Codex, or Antigravity, the user asks the agent to read avenox.lol/beyin.md and install a second brain in the current folder.
- The agent downloads the official stable release.
- It checks the archive against the published SHA-256 checksum.
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