Overview
What RA-H is and how the current product contract works
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.
The Core Shift
RA-H no longer treats dimensions or contexts as live organizing systems.
The current product contract is:
- stronger nodes
- clearer source preservation
- explicit edges
- direct lookup first
- broader retrieval when useful
- indexed source retrieval through chunks, full-text search, and semantic vectors
What RA-H Optimizes For
- Local ownership - your graph lives in SQLite on your machine
- Better node quality -
title,description,source,metadata, andedgesmatter more than taxonomy - Practical retrieval - specific-node lookup first, broader grounding only when the task needs it
- Fast indexed search - RA-H uses SQLite, FTS, chunks, and embeddings instead of scanning loose markdown files every turn
- External-agent compatibility - Claude Code and other MCP clients can work against the same graph
Two Ways to Use RA-H
| Version | Best For | Get It |
|---|---|---|
| Mac App | Most users. Signed app, private product surface, simpler install | Download |
| RA-H OS | Developers, self-hosters, contributors, local-first users | GitHub |
Key Features
- flexible pane workspace with focused-node editing and right-edge chat
- source-first graph capture
- semantic and full-text retrieval
- MCP access for external agents
- editable skills for shared agent behavior