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ra-h-os/docs/0_overview.md
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“BeeRad” 07754f5030 feat: sync open-source context and capsule removal
- remove legacy contexts surfaces from the app, MCP bridge, standalone server, and docs
- keep getContext and retrieveQueryContext while aligning the simplified graph-only contract
- harden dev startup migration behavior and disable the accidental chat surface in open source

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RA-H Overview

What is RA-H?

RA-H is a local-first knowledge graph for durable thinking. It captures sources, ideas, people, decisions, and conversations into one graph on your machine, then lets you retrieve and extend that graph through the app and MCP.

Website: ra-h.app Open Source: github.com/bradwmorris/ra-h_os

New here? Open chat and say let's get started to run the onboarding skill.

Design Philosophy

RA-H is built on the idea that capture quality matters more than taxonomy.

Non-prescriptive — RA-H does not require folders or dimensions. It pushes clearer nodes and clearer edges instead of category maintenance.

Everything is connected — Every piece of knowledge can potentially connect to any other. Connections aren't just links — they carry context, explanation, and meaning.

Local-first — Your knowledge network belongs to you, not a platform. Your thinking, research, and connections all belong to you in a portable format you control.

Human + AI — You guide, AI assists. Skills and graph quality shape behavior; the graph is not supposed to silently self-organize into truth without you.

Tech Stack

  • Frontend: Next.js 15, TypeScript, Tailwind CSS
  • Database: SQLite + sqlite-vec (vector search)
  • AI Models: Anthropic Claude + OpenAI GPT via Vercel AI SDK
  • Desktop: Tauri (Mac app)
  • MCP Server: Local connector for Claude Code and external agents

Current Status

  • Version: current internal product contract as of April 2026
  • Platforms:
  • License: MIT (open source version)

Two Ways to Use RA-H

Version Best For Get It
Mac App Most users. One-click install, auto-updates, optional subscription features ra-h.app/download
Open Source Developers, self-hosters, contributors. BYO API keys, full control GitHub

Both versions follow the same core graph contract. The Mac app adds packaging, auth, voice, and subscription surfaces. ra-h_os keeps the local graph, UI, and MCP path.

Key Features

  • Source-first graph: node quality comes from title, description, source, metadata, and edges
  • Graph-first capture: durable structure comes from nodes and edges, not category maintenance
  • Flexible pane system: explicit 1 / 2 / 3 pane workspace with right-edge chat
  • Single assistant: one built-in RA-H runtime grounded in your graph and skills
  • Retrieval split: direct lookup for specific nodes, broader retrieval when the turn actually needs graph context
  • MCP server: connect Claude Code and other external agents to the same graph
  • Skills: markdown procedures that shape graph work and agent behavior
  • Extraction tools: website, YouTube, and PDF ingestion paths

Documentation

Doc Description
Architecture Single-agent runtime, tools, and system design
Schema Database schema, node/edge structure
Context How context flows through the system
Tools & Skills Available tools, skill system
UI Component structure, panels, views
Voice Voice interface (STT/TTS)
MCP External agent connector setup
Open Source Contributor and sync guide