eugeniughelbur/

obsidian-second-brain

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obsidian-second-brain is a Python-based Obsidian integration that stores Claude Code and other CLI agents' memory as plain Markdown in an Obsidian vault, offering 45 commands for memory management, web research, and scheduled vault maintenance. It includes multiple CLIs and presets, with ongoing releases and a MIT license.

3.8kstars

475forks

4issues

MITlicense

2026since

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Reviewgenerated from repository data · Aug 5, 2026

What it is

obsidian-second-brain is a tool that persistent memory for Claude Code and 6 other CLI agents, stored as plain markdown in your Obsidian vault. It provides 45 commands including hybrid semantic search, self-rewriting notes, key-less web research, and scheduled agents to maintain the vault.

How it works

The project enables multiple CLIs (Code/Codex/Gemini/OpenCode/etc.) that share a common brain saved in Obsidian notes. It uses AI-driven note rewriting, reconciliation of contradictions, and synthesis across sources to keep the vault up-to-date. There are scheduled agent phases that operate while the user is idle, and commands that ingest media (audio, images, web) into the vault.

Getting started

"Install →" is indicated in the README, along with usage examples such as commands to capture, ingest, challenge, visualize, daily routines, and YouTube ingestion. The README enumerates commands like /obsidian-save, /obsidian-ingest, /obsidian-challenge, /obsidian-visualize, /obsidian-daily, and /x-read, among others. The latest release notes indicate v0.14.0 - The Harvest (2026-07-18).

Recent releases

v0.14.0 v0.14.0 - The Harvest (2026-07-18): We scanned all 408 forks of this repo and shipped the best ideas back upstream
v0.13.0 v0.13.0 - The Open Standard (2026-07-18): One tree, every harness
v0.12.0 v0.12.0 - The Stress Test (2026-07-11): We stress-tested our own tool with 32 AI agents
v0.11.1 v0.11.1 - Pi Coding Agent (2026-06-28): Adds Pi Coding Agent as a 6th build target
v0.11.0 v0.11.0 - The Retriever (2026-06-28): Search went from broken to hybrid

Traction

Stars: 3830 Forks: 475 Open issues: 4

Behind the repo

Not included in the facts block

Caveats

License: MIT Created: 2026-03-24 Last push: 2026-08-03 Language: Python

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