OpenViSTAI · Agents · Blockchain · Crypto
Submit a project
Menu
Agent Memory & RAG

Obsidian Second Brain

Obsidian Second Brain is a Python-based tool that gives supported CLI agents persistent memory through an Obsidian vault of plain Markdown notes. It includes hybrid semantic search and commands for capturing, retrieving, researching, and maintaining knowledge.

Explore the practical guide ↓

Independent OpenViST project profile, based on linked sources.

Obsidian Second Brain — OpenViST project profile in Agent Memory & RAG.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use it when you want project knowledge captured in an Obsidian vault and available to supported CLI agents across sessions, or when you want new sources to update existing knowledge rather than only add pages.

Who it is for

  • Developers and founders who want AI agents to retain project details and decisions between sessions.
  • Operators, writers, and researchers who want a searchable knowledge base shared across supported CLI agents.

Documented uses

  • Save conversation context, decisions, people, and tasks as linked vault notes.
  • Search stored knowledge with hybrid semantic retrieval.
  • Update existing notes as new sources arrive and reconcile conflicting claims.
  • Use one Markdown knowledge base across supported CLI agents.
Before you choose

Requirements & limits

The repository is public and lists an MIT license.

  • The vault is the shared memory store, with knowledge kept as plain Markdown.
  • The README lists eight supported agent platforms: Claude Code, Codex, Gemini, OpenCode, Antigravity, Hermes, Pi, and Grok Bot.
  • The command set includes hybrid semantic search and tools to rewrite or reconcile notes.
  • The documented starting commands are /obsidian-init, /obsidian-save, and /obsidian-find.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

Source-based practical guide

Set up the Obsidian memory workflow

Initialize the vault workflow and use the documented commands to save and retrieve knowledge.

Before you start

  • An Obsidian vault
  • A supported CLI agent: Claude Code, Codex, Gemini, OpenCode, Antigravity, Hermes, Pi, or Grok Bot

Steps

  1. Use /obsidian-init to set up the tool.

  2. Use /obsidian-save to capture information in the vault.

  3. Use /obsidian-find to retrieve stored information.

Expected outcome

Information is stored as Markdown in the Obsidian vault and can be searched through the documented find command.

Guide limitations

  • The README names the setup and command stages but does not specify their full configuration details here.
Documentation 1 ↗
Evidence and transparency

Sources & review

Official repository ↗
Source record details
Source availability
Active
Sources checked
10 October 2026
Original website title
eugeniughelbur/obsidian-second-brain · Official homepage title · retained in its source language
How we review sourcesSuggest a correction