# Brainy Documentation (v4.0.0)

Welcome to the comprehensive documentation for Brainy, the multi-dimensional AI database with Triple Intelligence Engine.

## 🆕 What's New in v4.0.0

**Production-Ready Cost Optimization:**
- **Lifecycle Management**: Automatic tier transitions for S3, GCS, Azure (96% cost savings!)
- **Intelligent-Tiering**: S3 Intelligent-Tiering and GCS Autoclass support
- **Batch Operations**: Efficient bulk delete operations (1000 objects per request)
- **Compression**: Gzip compression for FileSystem storage (60-80% space savings)
- **Quota Monitoring**: Real-time OPFS quota tracking for browser apps
- **Tier Management**: Azure Hot/Cool/Archive tier management

**Cost Impact Example (500TB dataset):**
- Before: $138,000/year
- After v4.0.0: $5,940/year
- **Savings: $132,060/year (96%)**

## 📊 Implementation Status

- ✅ **Production Ready**: Core features working today
- 🚧 **In Development**: Features coming soon
- 📅 **Roadmap**: See [ROADMAP.md](../ROADMAP.md)

## Quick Links

### Getting Started
- [API Reference](./api/README.md) - Complete API documentation (start here!)
- [Enterprise for Everyone](./guides/enterprise-for-everyone.md) - **No limits, no tiers, everything free**
- [Natural Language Queries](./guides/natural-language.md) - Query with plain English

### Core Concepts
- [Zero Configuration](./architecture/zero-config.md) - **Auto-adapts to any environment**
- [Noun-Verb Taxonomy](./architecture/noun-verb-taxonomy.md) - **Revolutionary data model**
- [Triple Intelligence](./architecture/triple-intelligence.md) - Unified query system
- [Architecture Overview](./architecture/overview.md) - System design

### API Documentation
- [API Reference](./api/README.md) - Complete API documentation
- [TypeScript Types](./api/types.md) - Type definitions

### Advanced Topics
- [Augmentations System](./architecture/augmentations.md) - **Enterprise plugins & neural import**
- [Storage Architecture](./architecture/storage.md) - Storage adapter system
- [Performance Tuning](./guides/performance.md) - Optimization guide
- [Migration Guide](../MIGRATION.md) - Upgrading from 1.x

## What is Brainy?

Brainy is a next-generation AI database that combines:
- **Vector Search**: Semantic similarity using HNSW indexing
- **Graph Relationships**: Complex relationship mapping and traversal
- **Field Filtering**: Precise metadata filtering with O(1) lookups
- **Natural Language**: Query in plain English

## Key Features

### 🧠 Triple Intelligence Engine
All three intelligence types (vector, graph, field) work together in every query for optimal results.

### 📝 Noun-Verb Taxonomy
Model your data naturally as entities (nouns) and relationships (verbs) - no complex schemas needed.

### 🌍 Natural Language Queries
Ask questions in plain English and Brainy understands your intent:
```typescript
await brain.find("recent articles about AI with high ratings")
```

### ⚡ Production Ready
- Universal storage (FileSystem, S3, OPFS, Memory)
- Zero configuration with intelligent defaults
- Full TypeScript support
- Cross-platform compatibility

## Quick Example

```typescript
import { Brainy } from 'brainy'

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

// Add entities (nouns)
const articleId = await brain.add("Revolutionary AI Breakthrough", {
  type: "article",
  category: "technology",
  rating: 4.8
})

const authorId = await brain.add("Dr. Sarah Chen", {
  type: "person",
  role: "researcher"
})

// Create relationships (verbs)
await brain.relate(authorId, articleId, "authored", {
  date: "2024-01-15",
  contribution: "primary"
})

// Query naturally
const results = await brain.find("highly rated technology articles by researchers")
```

## 📚 Complete Documentation Index

### 🚀 Quick Start Guides

| Document | Description |
|----------|-------------|
| [API Reference](./api/README.md) | **START HERE** - Complete API documentation with examples |
| [VFS Quick Start](./vfs/QUICK_START.md) | Virtual filesystem in 30 seconds |

### 🆕 v4.0.0 Migration & Optimization

| Document | Description |
|----------|-------------|
| [v3→v4 Migration Guide](./MIGRATION-V3-TO-V4.md) | **NEW** - Upgrade guide with zero breaking changes |
| [AWS S3 Cost Optimization](./operations/cost-optimization-aws-s3.md) | **NEW** - 96% cost savings with lifecycle policies |
| [GCS Cost Optimization](./operations/cost-optimization-gcs.md) | **NEW** - 94% savings with Autoclass |
| [Azure Cost Optimization](./operations/cost-optimization-azure.md) | **NEW** - 95% savings with tier management |
| [Cloudflare R2 Cost Guide](./operations/cost-optimization-cloudflare-r2.md) | **NEW** - Zero egress fees + S3-compatible API |

### 🎯 Core Concepts

| Document | Description |
|----------|-------------|
| [Architecture Overview](./architecture/overview.md) | High-level system design and components |
| [Noun-Verb Taxonomy](./architecture/noun-verb-taxonomy.md) | Revolutionary data model - entities and relationships |
| [Triple Intelligence](./architecture/triple-intelligence.md) | Vector + Graph + Field unified query system |
| [Zero Configuration](./architecture/zero-config.md) | Auto-adapts to any environment |
| [Storage Architecture](./architecture/storage-architecture.md) | **v4.0.0** - Storage adapters and optimization |
| [Data Storage Architecture](./architecture/data-storage-architecture.md) | **v4.0.0** - Metadata/vector separation, sharding |
| [Index Architecture](./architecture/index-architecture.md) | HNSW, Graph, and Metadata indexing |

### 💾 Storage & Deployment

| Document | Description |
|----------|-------------|
| [Cloud Deployment Guide](./deployment/CLOUD_DEPLOYMENT_GUIDE.md) | **v4.0.0** - Deploy on AWS, GCP, Azure, Cloudflare |
| [AWS Deployment](./deployment/aws-deployment.md) | AWS-specific deployment patterns |
| [GCP Deployment](./deployment/gcp-deployment.md) | Google Cloud deployment |
| [Kubernetes Deployment](./deployment/kubernetes-deployment.md) | K8s deployment configurations |
| [Distributed Storage](./architecture/distributed-storage.md) | Multi-node storage coordination |
| [Extending Storage](./EXTENDING_STORAGE.md) | Create custom storage adapters |
| [Capacity Planning](./operations/capacity-planning.md) | Scale to millions of entities |

### 📊 API Documentation

| Document | Description |
|----------|-------------|
| [API Reference](./API_REFERENCE.md) | Complete API documentation |
| [Comprehensive API Overview](./api/COMPREHENSIVE_API_OVERVIEW.md) | All APIs with examples |
| [API Decision Tree](./API_DECISION_TREE.md) | Choose the right API for your use case |
| [Core API Patterns](./CORE_API_PATTERNS.md) | Common patterns and best practices |
| [Neural API Patterns](./NEURAL_API_PATTERNS.md) | AI-powered query patterns |
| [Find System](./FIND_SYSTEM.md) | Natural language find() API |
| [API Surface Design](./architecture/API_SURFACE_DESIGN.md) | API design principles |
| [API Returns](./api-returns.md) | Return types and structures |

### 🔧 Framework Integration

| Document | Description |
|----------|-------------|
| [Framework Integration Guide](./guides/framework-integration.md) | React, Vue, Angular, Svelte, etc. |
| [Next.js Integration](./guides/nextjs-integration.md) | Server-side rendering with Brainy |
| [Vue.js Integration](./guides/vue-integration.md) | Vue 3 integration patterns |

### 📁 Virtual Filesystem (VFS)

| Document | Description |
|----------|-------------|
| [VFS Core Documentation](./vfs/VFS_CORE.md) | Core VFS concepts and architecture |
| [Semantic VFS Guide](./vfs/SEMANTIC_VFS.md) | Semantic filesystem projections |
| [VFS API Guide](./vfs/VFS_API_GUIDE.md) | Complete VFS API reference |
| [Neural Extraction](./vfs/NEURAL_EXTRACTION.md) | AI-powered file analysis |
| [Common Patterns](./vfs/COMMON_PATTERNS.md) | VFS usage patterns |
| [User Functions](./vfs/USER_FUNCTIONS.md) | Custom VFS functions |
| [VFS Graph Types](./vfs/VFS_GRAPH_TYPES.md) | Graph-based VFS projections |
| [VFS Examples & Scenarios](./vfs/VFS_EXAMPLES_SCENARIOS.md) | Real-world VFS examples |
| [VFS Initialization](./vfs/VFS_INITIALIZATION.md) | Setup and configuration |
| [Projection Strategy API](./vfs/PROJECTION_STRATEGY_API.md) | Custom projection strategies |
| [Building File Explorers](./vfs/building-file-explorers.md) | Build custom file browsers |
| [VFS Troubleshooting](./vfs/TROUBLESHOOTING.md) | Common issues and solutions |

### 🧠 Advanced Topics

| Document | Description |
|----------|-------------|
| [Natural Language Queries](./guides/natural-language.md) | Query in plain English |
| [Neural API](./guides/neural-api.md) | AI-powered features |
| [Import Anything](./guides/import-anything.md) | Import data from any source |
| [Distributed Systems](./guides/distributed-system.md) | Multi-node deployments |
| [Model Loading](./guides/model-loading.md) | Load and manage AI models |
| [Model Loading Quick Reference](./MODEL_LOADING_QUICK_REFERENCE.md) | Model loading cheat sheet |
| [Enterprise for Everyone](./guides/enterprise-for-everyone.md) | No paywalls, no tiers |

### 🔌 Augmentations (Plugins)

| Document | Description |
|----------|-------------|
| [Creating Augmentations](./CREATING-AUGMENTATIONS.md) | Build custom plugins |
| [Augmentations Complete Reference](./augmentations/COMPLETE-REFERENCE.md) | Full augmentation API |
| [Augmentations Developer Guide](./augmentations/DEVELOPER-GUIDE.md) | Plugin development guide |
| [Augmentation Configuration](./augmentations/CONFIGURATION.md) | Configure augmentations |
| [Augmentation System](./architecture/augmentations.md) | System architecture |
| [Augmentation System Audit](./architecture/augmentation-system-audit.md) | Actual vs planned features |
| [Augmentations Actual](./architecture/augmentations-actual.md) | Currently implemented augmentations |
| [API Server Augmentation](./augmentations/api-server.md) | REST API server plugin |

### ⚡ Performance & Scaling

| Document | Description |
|----------|-------------|
| [Performance Guide](./PERFORMANCE.md) | Optimization techniques |
| [Performance Analysis](./architecture/PERFORMANCE_ANALYSIS.md) | Benchmarks and analysis |
| [Scaling Guide](./SCALING.md) | Scale to billions of entities |
| [Clustering Algorithms Analysis](./architecture/CLUSTERING_ALGORITHMS_ANALYSIS.md) | HNSW algorithm details |
| [Initialization & Rebuild](./architecture/initialization-and-rebuild.md) | Index management |

### 📋 Reference

| Document | Description |
|----------|-------------|
| [Complete Feature List](./features/complete-feature-list.md) | All Brainy features |
| [v3 Features](./features/v3-features.md) | v3.x feature list |
| [Metadata Architecture](./architecture/METADATA_ARCHITECTURE.md) | Metadata namespacing |
| [Metadata Contract Implementation](./METADATA_CONTRACT_IMPLEMENTATION.md) | Metadata API contracts |
| [Finite Type System](./architecture/finite-type-system.md) | Type-safe noun/verb taxonomy |
| [Validation](./VALIDATION.md) | Data validation rules |
| [Universal Display Augmentation](./universal-display-augmentation.md) | Display system |

### 🛠️ Development

| Document | Description |
|----------|-------------|
| [Troubleshooting](./troubleshooting.md) | Common issues and solutions |
| [Release Guide](./RELEASE-GUIDE.md) | How to release new versions |

### 🔍 Internal Documentation

| Document | Description |
|----------|-------------|
| [Audit Report](./internal/AUDIT_REPORT.md) | Feature audit |
| [Cleanup Summary](./internal/CLEANUP_SUMMARY.md) | Codebase cleanup notes |
| [Honest Status](./internal/HONEST_STATUS.md) | Actual implementation status |

---

## Documentation Structure

```
docs/
├── README.md (this file)          # Complete documentation index
├── MIGRATION-V3-TO-V4.md          # v4.0.0 migration guide
│
├── guides/                        # User guides
│   ├── natural-language.md
│   ├── neural-api.md
│   ├── import-anything.md
│   ├── framework-integration.md
│   ├── nextjs-integration.md
│   ├── vue-integration.md
│   ├── distributed-system.md
│   ├── model-loading.md
│   └── enterprise-for-everyone.md
│
├── architecture/                  # System architecture
│   ├── overview.md
│   ├── noun-verb-taxonomy.md
│   ├── triple-intelligence.md
│   ├── zero-config.md
│   ├── storage-architecture.md    # v4.0.0
│   ├── data-storage-architecture.md # v4.0.0
│   ├── index-architecture.md
│   ├── distributed-storage.md
│   ├── augmentations.md
│   ├── augmentation-system-audit.md
│   ├── augmentations-actual.md
│   ├── finite-type-system.md
│   └── ...
│
├── operations/                    # Operations guides
│   ├── cost-optimization-aws-s3.md       # v4.0.0
│   ├── cost-optimization-gcs.md          # v4.0.0
│   ├── cost-optimization-azure.md        # v4.0.0
│   ├── cost-optimization-cloudflare-r2.md # v4.0.0
│   └── capacity-planning.md
│
├── deployment/                    # Deployment guides
│   ├── CLOUD_DEPLOYMENT_GUIDE.md  # v4.0.0
│   ├── aws-deployment.md
│   ├── gcp-deployment.md
│   └── kubernetes-deployment.md
│
├── vfs/                          # Virtual Filesystem docs
│   ├── QUICK_START.md
│   ├── VFS_CORE.md
│   ├── SEMANTIC_VFS.md
│   ├── VFS_API_GUIDE.md
│   ├── NEURAL_EXTRACTION.md
│   ├── COMMON_PATTERNS.md
│   └── ...
│
├── api/                          # API documentation
│   ├── README.md
│   └── COMPREHENSIVE_API_OVERVIEW.md
│
├── augmentations/                # Augmentation docs
│   ├── COMPLETE-REFERENCE.md
│   ├── DEVELOPER-GUIDE.md
│   ├── CONFIGURATION.md
│   └── api-server.md
│
├── features/                     # Feature documentation
│   ├── complete-feature-list.md
│   └── v3-features.md
│
└── internal/                     # Internal docs
    ├── AUDIT_REPORT.md
    ├── CLEANUP_SUMMARY.md
    └── HONEST_STATUS.md
```

## Community

- **GitHub**: [github.com/brainy-org/brainy](https://github.com/brainy-org/brainy)
- **Issues**: [Report bugs or request features](https://github.com/brainy-org/brainy/issues)
- **Discussions**: [Join the conversation](https://github.com/brainy-org/brainy/discussions)

## License

Brainy is MIT licensed. See [LICENSE](../LICENSE) for details.