114 lines
3.5 KiB
Markdown
114 lines
3.5 KiB
Markdown
# RA-H MCP Server
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Connect Claude Code and Claude Desktop to your RA-H knowledge base. Direct SQLite access - works without the RA-H app running.
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## Install
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```bash
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npx ra-h-mcp-server
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```
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That's it. No manual setup required.
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## Configure Claude Code / Claude Desktop
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Add to your Claude config (`~/.claude.json` or Claude Desktop settings):
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```json
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{
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"mcpServers": {
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"ra-h": {
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"command": "npx",
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"args": ["ra-h-mcp-server"]
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}
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}
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}
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```
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Restart Claude. Done.
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## Requirements
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- Node.js 18+
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- Database is created automatically at `~/Library/Application Support/RA-H/db/rah.sqlite` on first connection
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## Environment Variables
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| Variable | Default | Description |
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|----------|---------|-------------|
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| `RAH_DB_PATH` | ~/Library/Application Support/RA-H/db/rah.sqlite | Database path |
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## What to Expect
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Once connected, Claude will:
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- **Call `getContext` first** to orient itself (stats, contexts, anchors/hubs, skills)
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- **Proactively capture knowledge** — when a new insight, decision, person, or reference surfaces, it proposes a specific node (title, description, optional context) so you can approve with minimal friction
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- **Read skills for complex tasks** — skills are editable and shared across internal + external agents
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- **Search before creating** to avoid duplicates
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## Available Tools
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| Tool | Description |
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|------|-------------|
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| `getContext` | Get graph overview — stats, contexts, recent activity |
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| `createNode` | Create a new node |
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| `queryNodes` | Search nodes by keyword |
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| `queryContexts` | List or inspect contexts |
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| `getNodesById` | Load nodes by ID (includes chunk + metadata) |
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| `updateNode` | Update an existing node |
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| `createEdge` | Create connection between nodes |
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| `updateEdge` | Update an edge explanation |
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| `queryEdge` | Find edges for a node |
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| `listSkills` | List available skills |
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| `readSkill` | Read a skill by name |
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| `writeSkill` | Create or update a skill |
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| `deleteSkill` | Delete a skill |
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| `searchContentEmbeddings` | Search through source content (transcripts, books, articles) |
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| `sqliteQuery` | Execute read-only SQL queries (SELECT/WITH/PRAGMA) |
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## Node Metadata Contract
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When `createNode` or `updateNode` includes metadata, prefer the canonical shape:
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```json
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{
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"type": "website | youtube | pdf | tweet | note | chat | ...",
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"state": "processed | not_processed",
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"captured_method": "quick_add_note | website_extract | ...",
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"captured_by": "human | agent",
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"source_metadata": {}
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}
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```
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Rules:
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- `source_metadata` is for small factual source-specific fields only
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- metadata updates merge with the existing object; they do not replace the full blob
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- use `captured_by = "human"` for direct user creation and user-requested agent capture
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- reserve `captured_by = "agent"` for autonomous/background creation only
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## Skills
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Skills are detailed instruction sets that teach agents how to work with your knowledge base. The default seeded skills are editable and shared by internal + external agents.
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Skills are stored at `~/Library/Application Support/RA-H/skills/` and shared with the main app.
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## What's NOT Included
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This is a lightweight CRUD server. Advanced features are handled by the main app:
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- Embedding generation
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- AI-powered edge inference
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- Content extraction (URL, YouTube, PDF)
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- Real-time SSE events
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## Testing
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```bash
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# Test database connection
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node -e "const {initDatabase,query}=require('./services/sqlite-client');initDatabase();console.log(query('SELECT COUNT(*) as c FROM nodes')[0].c,'nodes')"
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# Run the server
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node index.js
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```
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