Guide

Quick Start

Get Brainy running in under a minute.

1. Install

npm install @soulcraft/brainy

2. Initialize

import { Brainy, NounType, VerbType } from '@soulcraft/brainy'

const brain = new Brainy()
await brain.init()

That's it. Brainy auto-configures storage, loads the embedding model, and builds the indexes.

3. Add Knowledge

// Text is automatically embedded into 384-dim vectors
const reactId: string = await brain.add({
  data: 'React is a JavaScript library for building user interfaces',
  type: NounType.Concept,
  metadata: { category: 'frontend', year: 2013 }
})

const nextId: string = await brain.add({
  data: 'Next.js framework for React with server-side rendering',
  type: NounType.Concept,
  metadata: { category: 'framework', year: 2016 }
})

4. Create Relationships

// Typed graph relationships
await brain.relate({
  from: nextId,
  to: reactId,
  type: VerbType.BuiltOn
})

5. Query with Triple Intelligence

import type { FindResult } from '@soulcraft/brainy'

// All three search paradigms in one call
const results: FindResult[] = await brain.find({
  query: 'modern frontend frameworks',    // Vector similarity search
  where: { year: { greaterThan: 2015 } }, // Metadata filtering
  connected: { to: reactId, depth: 2 }   // Graph traversal
})

console.log(results[0].data)   // 'Next.js framework for React...'
console.log(results[0].score)  // 0.94

What Just Happened

Every entity you add() lives in three indexes simultaneously:

Index What it stores Query with
Vector 384-dim embedding of data find({ query: '...' })
Metadata All metadata fields find({ where: { ... } })
Graph Typed relationships from relate() find({ connected: { ... } })

find() queries all three in parallel and fuses the results.

Natural Language Queries

Brainy understands 220+ natural language patterns:

// These all work without any configuration
await brain.find({ query: 'recent documents about machine learning' })
await brain.find({ query: 'articles created this week' })
await brain.find({ query: 'people who work at Anthropic' })

Next Steps