The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.
OB1
Open Brain — The infrastructure layer for your thinking. One database, one AI gateway, one chat channel — any AI plugs in. No middleware, no SaaS.
Install
$
git clone https://github.com/NateBJones-Projects/OB1Install command taken from the project's README or registry entry. Always review code before running it.
README excerpt
Read full README on GitHub →Open Brain
The infrastructure layer for your thinking. One database, one AI gateway, one chat channel. Any AI you use can plug in. No middleware, no SaaS chains, no Zapier.
This isn't a notes app. It's a database with vector search and an open protocol — built so that every AI tool you use shares the same persistent memory of you. Claude, ChatGPT, Cursor, Claude Code, whatever ships next month. One brain. All of them.
Open Brain was created by Nate B. Jones. Follow the Substack for updates, discussion, and the companion prompt pack. Join the Discord for real-time help and community.
Getting Started
Never built an Open Brain? Start here:
- Setup Guide — Build the full system (database, AI gateway, Slack capture, MCP server) in about 45 minutes. No coding experience needed. Or watch the video walkthrough (~27 min).
- AI-Assisted Setup — Prefer building with Cursor, Claude Code, or another AI coding tool? Point it at this repo and go. Same system, different workflow.
- Companion Prompts — Five prompts that help you migrate your memories, discover use cases, and build the capture habit.
- Then pick Extension 1 and start building.
If you hit a wall: We built a FAQ that covers the most common questions and gotchas. And if you need real-time help, we created dedicated AI assistants that know this system inside and out: a Claude Skill, a ChatGPT Custom GPT, and a Gemini GEM. Use whichever one matches the AI tool you already use.
Recent Contributions
The 20 most recent merged PRs. This list is generated from GitHub and refreshes daily. Last updated: 2026-08-30.
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