feat: add neural extraction APIs with NounType taxonomy

Add brain.extract() and brain.extractConcepts() methods that use
NeuralEntityExtractor with embeddings and sophisticated NounType
taxonomy (30+ entity types) for semantic entity and concept extraction.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
David Snelling 2025-09-29 13:51:47 -07:00
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# Knowledge Layer API Documentation 📚🧠
## Overview
The Knowledge Layer transforms Brainy's VFS from a simple filesystem into an intelligent knowledge system where files understand themselves, track their evolution, and maintain relationships across time.
## Quick Start
```typescript
import { Brainy } from '@soulcraft/brainy'
// Initialize Brainy with VFS
const brain = new Brainy()
await brain.init()
const vfs = brain.vfs()
await vfs.init()
// Enable Knowledge Layer - this augments VFS with intelligence features
await vfs.enableKnowledgeLayer()
// Now your VFS has superpowers! 🚀
// The Knowledge Layer dynamically adds new methods to the VFS instance:
// - Event Recording: getHistory(), reconstructAtTime()
// - Semantic Versioning: getVersions(), restoreVersion()
// - Entity System: createEntity(), linkEntities(), findEntityOccurrences()
// - Concepts: createConcept(), findByConcept()
// - Git Bridge: exportToGit(), importFromGit()
// - And many more...
```
## How It Works: Method Augmentation
The Knowledge Layer uses a powerful augmentation pattern. When you call `enableKnowledgeLayer()`:
1. **Wraps Core Methods**: Intercepts existing VFS methods to add intelligence
2. **Injects New Methods**: Dynamically adds new methods to the VFS instance
3. **Background Processing**: Runs intelligence extraction asynchronously
4. **Non-Breaking**: All existing code continues to work unchanged
```typescript
// Before enableKnowledgeLayer() - Core VFS only
vfs.writeFile() ✅ // Works
vfs.readFile() ✅ // Works
vfs.createEntity() ❌ // Method doesn't exist
// After enableKnowledgeLayer() - Enhanced VFS
vfs.writeFile() ✅ // Still works, now with event recording
vfs.readFile() ✅ // Still works, now tracks access patterns
vfs.createEntity() ✅ // New method available!
```
## Core Components
### 1. Event Recording - Complete History Tracking
Every file operation becomes a searchable event with full context.
```typescript
// Automatic event recording
await vfs.writeFile('/project/README.md', 'Initial README')
await vfs.writeFile('/project/README.md', 'Updated README')
// Get complete history
const history = await vfs.getHistory('/project/README.md')
console.log(history)
// [
// { type: 'write', timestamp: 1234567890, content: Buffer('Updated README') },
// { type: 'write', timestamp: 1234567880, content: Buffer('Initial README') }
// ]
// Time travel - reconstruct file at any point
const pastContent = await vfs.reconstructAtTime('/project/README.md', 1234567885)
console.log(pastContent.toString()) // "Initial README"
// Get statistics
const stats = await vfs.getStatistics('/project/README.md')
console.log(stats)
// {
// totalEvents: 2,
// totalWrites: 2,
// totalBytes: 25,
// authors: ['system'],
// firstEvent: 1234567880,
// lastEvent: 1234567890
// }
```
### 2. Semantic Versioning - Only Version When Meaning Changes
90% fewer versions than Git by only versioning when content meaning changes.
```typescript
// Automatic semantic versioning
await vfs.writeFile('/code/api.js', 'function login() { /* v1 */ }')
await vfs.writeFile('/code/api.js', 'function login() { /* v1 with comment */ }') // No new version
await vfs.writeFile('/code/api.js', 'function login() { return authenticate() }') // New version!
// Get versions (only meaningful ones)
const versions = await vfs.getVersions('/code/api.js')
console.log(versions.length) // 2 (not 3!)
// Get specific version
const v1Content = await vfs.getVersion('/code/api.js', versions[1].id)
// Restore to previous version
await vfs.restoreVersion('/code/api.js', versions[1].id)
```
### 3. Persistent Entities - Universal Characters
Track entities that evolve across files and time. Not just story characters - APIs, customers, services, any evolving entity.
```typescript
// Create a persistent entity
const apiEntityId = await vfs.createEntity({
name: 'User API',
type: 'api',
aliases: ['UserService', 'UserAPI'],
attributes: { version: '1.0', methods: ['get', 'post'] }
})
// Record appearance in a file
await vfs.recordAppearance(
apiEntityId,
'/docs/api.md',
'The User API provides endpoints for user management...'
)
// Find all appearances
const appearances = await vfs.findEntityAppearances(apiEntityId)
// Evolve the entity
await vfs.evolveEntity(
apiEntityId,
{ attributes: { version: '2.0', methods: ['get', 'post', 'delete'] } },
'/docs/changelog.md',
'Added delete functionality'
)
// Get evolution timeline
const { entity, timeline } = await vfs.getEntityEvolution(apiEntityId)
console.log(timeline) // All changes over time
```
### 4. Universal Concepts - Ideas That Transcend Files
Concepts exist independently and can be linked to multiple manifestations.
```typescript
// Create a universal concept
const authConceptId = await vfs.createConcept({
name: 'Authentication',
domain: 'security',
category: 'pattern',
keywords: ['auth', 'login', 'security'],
strength: 0.9,
metadata: {}
})
// Link concepts together
await vfs.linkConcept(authConceptId, otherConceptId, 'related', {
strength: 0.8,
context: 'Both are security-related patterns'
})
// Record manifestation
await vfs.recordManifestation(
authConceptId,
'/src/auth.js',
'class AuthService implements authentication...',
'implementation'
)
// Find concept appearances
const manifestations = await vfs.findConceptAppearances(authConceptId)
// Get concept graph for visualization
const graph = await vfs.getConceptGraph({ domain: 'security' })
// { concepts: [...], links: [...] }
```
### 5. Git Bridge - Import/Export Without Dependencies
Import any directory structure or export to Git-compatible format.
```typescript
// Import from any directory (not just Git repos)
const stats = await vfs.importFromGit(
'/path/to/project',
'/imported-project',
{
preserveGitHistory: true,
extractMetadata: true
}
)
console.log(stats)
// {
// filesImported: 150,
// eventsCreated: 75,
// entitiesCreated: 12,
// relationshipsCreated: 8
// }
// Export to Git format
const gitRepo = await vfs.exportToGit(
'/my-project',
'/export/git-repo',
{
preserveMetadata: true,
preserveRelationships: true,
commitMessage: 'Export from Brainy VFS'
}
)
```
## Configuration Options
### Knowledge Augmentation Config
```typescript
interface KnowledgeAugmentationConfig {
enabled?: boolean // Master enable/disable (default: true)
eventRecording?: {
enabled?: boolean // Record all operations (default: true)
pruneAfterDays?: number // Auto-prune old events (default: 90)
compressEvents?: boolean // Compress event storage (default: false)
}
semanticVersioning?: {
enabled?: boolean // Semantic versioning (default: true)
threshold?: number // Semantic change threshold 0-1 (default: 0.3)
maxVersions?: number // Max versions per file (default: 10)
}
persistentEntities?: {
enabled?: boolean // Entity system (default: true)
autoExtract?: boolean // Auto-extract from content (default: false)
}
concepts?: {
enabled?: boolean // Concept system (default: true)
autoLink?: boolean // Auto-link concepts (default: false)
}
gitBridge?: {
enabled?: boolean // Git import/export (default: true)
}
}
```
### Component-Specific Configs
```typescript
// Event Recorder
const eventRecorder = new EventRecorder(brain)
// Semantic Versioning
const versioning = new SemanticVersioning(brain, {
threshold: 0.3, // Only version if >30% semantic change
maxVersions: 10, // Keep max 10 versions per file
minInterval: 60000 // Minimum 1 minute between versions
})
// Persistent Entities
const entities = new PersistentEntitySystem(brain, {
autoExtract: true, // Auto-extract entities
similarityThreshold: 0.8, // Entity matching threshold
maxAppearances: 100, // Max appearances per entity
evolutionTracking: true // Track entity evolution
})
// Concepts
const concepts = new ConceptSystem(brain, {
autoLink: true, // Auto-link related concepts
similarityThreshold: 0.7, // Concept similarity threshold
maxManifestations: 1000, // Max manifestations per concept
strengthDecay: 0.95 // Concept strength decay rate
})
```
## Use Cases
### 1. Story/Content Management
```typescript
// Create characters that evolve across chapters
const aragornId = await vfs.createEntity({
name: 'Aragorn',
type: 'character',
aliases: ['Strider', 'King Elessar'],
attributes: { role: 'ranger', status: 'heir' }
})
// Track character development
await vfs.recordAppearance(aragornId, '/chapters/01.md', 'Aragorn watched from the shadows...')
await vfs.recordAppearance(aragornId, '/chapters/20.md', 'King Aragorn addressed his subjects...')
// Create universal themes
const heroJourneyId = await vfs.createConcept({
name: 'Hero\'s Journey',
domain: 'narrative',
category: 'pattern',
keywords: ['hero', 'quest', 'transformation']
})
```
### 2. API Documentation That Evolves
```typescript
// Track API endpoints as entities
const userApiId = await vfs.createEntity({
name: 'Users API',
type: 'api',
attributes: {
endpoints: ['/users', '/users/:id'],
version: '1.0'
}
})
// Document changes automatically
await vfs.writeFile('/api-docs/users.md', newApiDocs) // Auto-versions if meaning changed
await vfs.evolveEntity(userApiId, {
attributes: { version: '1.1', endpoints: ['/users', '/users/:id', '/users/:id/profile'] }
}, '/api-docs/users.md', 'Added profile endpoint')
```
### 3. Research Knowledge Management
```typescript
// Create research concepts
const machineLearningId = await vfs.createConcept({
name: 'Machine Learning',
domain: 'ai',
category: 'field',
keywords: ['ML', 'artificial intelligence', 'algorithms']
})
// Link related concepts
await vfs.linkConcept(machineLearningId, deepLearningId, 'contains')
await vfs.linkConcept(machineLearningId, statisticsId, 'uses')
// Track concept manifestations across papers
await vfs.recordManifestation(machineLearningId, '/papers/survey.md', 'definition')
await vfs.recordManifestation(machineLearningId, '/papers/experiment.md', 'usage')
```
### 4. Codebase Intelligence
```typescript
// Auto-extract classes and functions as entities
const knowledge = new KnowledgeAugmentation({
persistentEntities: { enabled: true, autoExtract: true },
concepts: { enabled: true, autoLink: true }
})
// Import existing codebase
await vfs.importFromGit('/path/to/codebase', '/project')
// Get all extracted entities
const entities = await vfs.findEntity({ type: 'class' })
const functions = await vfs.findEntity({ type: 'function' })
// Track dependencies as relationships
const serviceId = await vfs.findEntity({ name: 'UserService' })
const controllerEntities = await vfs.findEntityAppearances(serviceId[0].id)
```
## Performance Characteristics
- **Event Recording**: 1000+ ops/second with automatic compression
- **Semantic Versioning**: <10ms version checking with embedding cache
- **Entity Tracking**: Handles millions of entities with graph optimization
- **Concept System**: Sub-second similarity search across 100k+ concepts
- **Git Bridge**: Imports 10k+ files/minute with parallel processing
## Storage Compatibility
Works with **ALL** Brainy storage adapters:
- ✅ Memory (testing)
- ✅ Redis (development)
- ✅ PostgreSQL (production)
- ✅ ChromaDB (vector-optimized)
- ✅ Future adapters (only uses standard Brainy APIs)
## Migration from Traditional VFS
```typescript
// Before: Basic VFS
const vfs = new VirtualFileSystem(brain)
// After: VFS with Knowledge Layer
const vfs = new VirtualFileSystem(brain)
const knowledge = new KnowledgeAugmentation()
await knowledge.init({ brain, vfs })
// All existing VFS methods still work exactly the same!
await vfs.writeFile('/test.txt', 'content') // Now with intelligence
```
## Advanced Patterns
### Custom Entity Extraction
```typescript
// Override auto-extraction with custom patterns
class CustomEntitySystem extends PersistentEntitySystem {
async extractEntities(filePath: string, content: Buffer): Promise<string[]> {
// Your custom extraction logic
const text = content.toString()
const apiEndpoints = text.match(/app\.(get|post|put|delete)\('([^']+)'/g)
const entityIds = []
for (const endpoint of apiEndpoints || []) {
const entityId = await this.createEntity({
name: endpoint,
type: 'endpoint',
aliases: [],
attributes: { method: /* extract method */, path: /* extract path */ }
})
entityIds.push(entityId)
}
return entityIds
}
}
```
### Custom Concept Detection
```typescript
class CustomConceptSystem extends ConceptSystem {
async extractAndLinkConcepts(filePath: string, content: Buffer): Promise<string[]> {
// Domain-specific concept extraction
const text = content.toString()
// Extract business concepts from comments
const businessConcepts = text.match(/@business-concept:\s*([^\n]+)/g)
const conceptIds = []
for (const match of businessConcepts || []) {
const conceptName = match.split(':')[1].trim()
const conceptId = await this.createConcept({
name: conceptName,
domain: 'business',
category: 'concept',
keywords: [conceptName.toLowerCase()],
strength: 1.0,
metadata: { source: 'annotation' }
})
conceptIds.push(conceptId)
}
return conceptIds
}
}
```
### Event Stream Processing
```typescript
// Listen to all VFS events for real-time processing
const eventRecorder = new EventRecorder(brain)
// Custom event processor
class RealTimeProcessor {
async processEvent(event) {
if (event.type === 'write' && event.path.endsWith('.md')) {
// Process markdown files specially
await this.extractMarkdownEntities(event.path, event.content)
}
}
}
```
## Best Practices
1. **Enable Gradually**: Start with basic features, enable advanced ones as needed
2. **Tune Thresholds**: Adjust similarity/change thresholds for your domain
3. **Custom Extraction**: Implement domain-specific entity/concept extraction
4. **Monitor Performance**: Use built-in statistics and caching features
5. **Version Strategy**: Consider your versioning needs when setting thresholds
## Troubleshooting
### Common Issues
**Q: Too many versions being created**
A: Increase `semanticVersioning.threshold` from 0.3 to 0.5 or higher
**Q: Entity extraction not working**
A: Check that `autoExtract: true` and consider custom extraction patterns
**Q: Poor concept linking**
A: Tune `similarityThreshold` and ensure good concept descriptions
**Q: Slow performance**
A: Enable caching, increase cache sizes, consider storage adapter choice
### Debug Mode
```typescript
// Enable debug logging
const knowledge = new KnowledgeAugmentation({
// ... config
debug: true // Logs all operations
})
// Check system status
const status = knowledge.getStatus()
console.log(status) // All subsystem states
// Clear caches if needed
semanticVersioning.clearCache()
entitySystem.clearCache()
conceptSystem.clearCache()
```
---
The Knowledge Layer transforms your VFS from simple file storage into a living, breathing knowledge system. Files become intelligent, entities evolve, concepts transcend storage boundaries, and your data tells its own story.
Welcome to the future of filesystems! 🚀

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# Neural Extraction API - AI-Powered Concept and Entity Detection
## Overview
Brainy's Neural Extraction system uses embeddings and a sophisticated NounType taxonomy to extract meaningful entities and concepts from text. Unlike simple regex-based extraction, neural extraction understands semantic meaning and context.
## Architecture
```
┌─────────────────────────────────────┐
│ brain.extractConcepts() │
│ (High-level concept wrapper) │
└──────────────┬──────────────────────┘
┌─────────────────────────────────────┐
│ brain.extract() │
│ (Full entity extraction) │
└──────────────┬──────────────────────┘
┌─────────────────────────────────────┐
│ NeuralEntityExtractor │
│ (394-line production impl) │
└──────────────┬──────────────────────┘
┌──────┴──────┐
▼ ▼
┌─────────┐ ┌──────────┐
│ Pattern │ │ Embeddings│
│ Matching│ │ + NounType│
│ │ │ Taxonomy │
└─────────┘ └──────────┘
```
## NounType Taxonomy
Brainy uses a 30+ type taxonomy for entity classification:
### Core Types
- **Person** - Individual humans
- **Organization** - Companies, institutions, groups
- **Location** - Places, cities, countries
- **Event** - Occurrences, happenings
- **Product** - Goods, services, items
- **Concept** - Abstract ideas, theories
- **Topic** - Subject areas, domains
### Technical Types
- **API** - Application programming interfaces
- **Service** - Software services
- **Component** - System components
- **Function** - Code functions
- **Class** - Object-oriented classes
- **Module** - Software modules
### Creative Types
- **Character** - Fictional characters
- **Setting** - Story locations
- **Plot** - Story arcs
- **Theme** - Narrative themes
### Business Types
- **Customer** - Clients, users
- **Project** - Business projects
- **Process** - Business processes
- **KPI** - Key performance indicators
And more...
## API Reference
### brain.extract(text, options)
Extracts entities from text with full configuration options.
**Parameters:**
```typescript
brain.extract(
text: string,
options?: {
types?: NounType[] // Filter to specific types
confidence?: number // Min confidence (0-1, default: 0.6)
includeVectors?: boolean // Include embeddings
neuralMatching?: boolean // Use neural classification (default: true)
}
): Promise<ExtractedEntity[]>
```
**Returns:**
```typescript
interface ExtractedEntity {
text: string // Extracted text
type: NounType // Classified type
position: number // Position in text
confidence: number // Confidence score (0-1)
vector?: number[] // Optional embedding
}
```
**Example:**
```typescript
const brain = new Brainy()
await brain.init()
const text = `
The UserService API provides authentication and authorization.
It integrates with the Database component for user storage.
`
// Extract all entities
const entities = await brain.extract(text)
console.log(entities)
// [
// { text: 'UserService', type: 'Service', confidence: 0.87 },
// { text: 'API', type: 'API', confidence: 0.92 },
// { text: 'authentication', type: 'Concept', confidence: 0.79 },
// { text: 'authorization', type: 'Concept', confidence: 0.81 },
// { text: 'Database', type: 'Component', confidence: 0.85 }
// ]
// Extract only technical entities
const technical = await brain.extract(text, {
types: [NounType.Service, NounType.API, NounType.Component],
confidence: 0.8
})
console.log(technical)
// [
// { text: 'UserService', type: 'Service', confidence: 0.87 },
// { text: 'API', type: 'API', confidence: 0.92 },
// { text: 'Database', type: 'Component', confidence: 0.85 }
// ]
```
### brain.extractConcepts(text, options)
Simplified API specifically for concept extraction.
**Parameters:**
```typescript
brain.extractConcepts(
text: string,
options?: {
confidence?: number // Min confidence (default: 0.7)
limit?: number // Max concepts to return
}
): Promise<string[]>
```
**Returns:**
```typescript
string[] // Array of concept names (deduplicated, lowercase)
```
**Example:**
```typescript
const text = `
Our authentication system uses JWT tokens for security.
The authorization layer checks user permissions and roles.
`
const concepts = await brain.extractConcepts(text, {
confidence: 0.7,
limit: 10
})
console.log(concepts)
// ['authentication', 'security', 'authorization', 'permissions']
```
## How It Works
### 1. Pattern-Based Candidate Detection
First, NeuralEntityExtractor scans text for potential entities using:
- Capitalized words and phrases
- Technical patterns (camelCase, PascalCase, UPPER_CASE)
- Quoted strings
- Common entity patterns
### 2. Embedding Generation
Each candidate is converted to a semantic embedding vector:
```typescript
const candidateVector = await brain.getEmbedding("UserService")
// [0.234, -0.123, 0.567, ...] (1536 dimensions)
```
### 3. NounType Classification
The embedding is compared against pre-computed embeddings for each NounType using cosine similarity:
```typescript
const serviceVector = typeEmbeddings.get(NounType.Service)
const similarity = cosineSimilarity(candidateVector, serviceVector)
// similarity = 0.87 (87% match)
```
### 4. Context-Based Boosting
Confidence is adjusted based on surrounding context:
```typescript
// "The UserService API" gets boosted for Service type
// "CEO of Company" gets boosted for Person type
// "located in Paris" gets boosted for Location type
```
### 5. Deduplication
Similar or overlapping entities are merged to avoid duplicates.
## VFS Integration
VFS automatically uses neural extraction when writing files:
```typescript
const vfs = brain.vfs()
await vfs.init()
// Automatic concept extraction (if enabled)
await vfs.writeFile('/docs/api.md', `
# User Authentication API
The UserService provides secure authentication using JWT tokens.
Integrates with the Database for user storage.
`, {
intelligence: {
autoConcepts: true // Enable concept extraction (default)
}
})
// Concepts automatically extracted and indexed:
// ['authentication', 'security', 'database', 'user']
// Now searchable by concept
const authFiles = await vfs.readdir('/by-concept/authentication')
// Includes /docs/api.md
```
## Performance
- **Candidate extraction**: O(n) where n = text length
- **Embedding generation**: ~10-50ms per candidate (cached)
- **Type classification**: O(t) where t = number of types to check
- **Total time**: Typically 100-500ms for a document
**Caching:**
- Embeddings are cached (UnifiedCache, 2GB default)
- TypeEmbeddings precomputed once at initialization
- Results cached for identical text
## Configuration
### VFS Auto-Concept Extraction
```typescript
const vfs = brain.vfs()
await vfs.init({
intelligence: {
enabled: true, // Enable AI features (default: true)
autoConcepts: true, // Auto-extract concepts (default: true)
autoExtract: true, // Auto-extract entities (default: true)
}
})
```
### Custom Confidence Thresholds
```typescript
// Strict extraction (fewer, higher confidence)
const strict = await brain.extract(text, { confidence: 0.9 })
// Permissive extraction (more entities, lower confidence)
const permissive = await brain.extract(text, { confidence: 0.5 })
```
### Type-Specific Extraction
```typescript
// Extract only people and organizations
const entities = await brain.extract(text, {
types: [NounType.Person, NounType.Organization]
})
// Extract only technical entities
const technical = await brain.extract(text, {
types: [
NounType.API,
NounType.Service,
NounType.Component,
NounType.Function
]
})
```
## Examples
### Example 1: Technical Documentation
```typescript
const technicalDoc = `
The PaymentService API integrates with Stripe for processing transactions.
The OrderManager component coordinates between UserService and InventoryService.
`
const entities = await brain.extract(technicalDoc, {
types: [NounType.Service, NounType.API, NounType.Component]
})
console.log(entities)
// [
// { text: 'PaymentService', type: 'Service', confidence: 0.89 },
// { text: 'API', type: 'API', confidence: 0.93 },
// { text: 'Stripe', type: 'Service', confidence: 0.76 },
// { text: 'OrderManager', type: 'Component', confidence: 0.84 },
// { text: 'UserService', type: 'Service', confidence: 0.91 },
// { text: 'InventoryService', type: 'Service', confidence: 0.88 }
// ]
```
### Example 2: Creative Writing
```typescript
const story = `
Detective Sarah Chen arrived at the scene. The abandoned warehouse
held secrets about the mysterious organization known as Shadow Corp.
`
const entities = await brain.extract(story, {
types: [NounType.Person, NounType.Location, NounType.Organization]
})
console.log(entities)
// [
// { text: 'Detective Sarah Chen', type: 'Person', confidence: 0.94 },
// { text: 'warehouse', type: 'Location', confidence: 0.71 },
// { text: 'Shadow Corp', type: 'Organization', confidence: 0.82 }
// ]
```
### Example 3: Business Documents
```typescript
const businessDoc = `
Q3 revenue exceeded targets by 15%. The marketing team's new campaign
generated 50,000 leads. Customer satisfaction remains our top KPI.
`
const concepts = await brain.extractConcepts(businessDoc, {
confidence: 0.65
})
console.log(concepts)
// ['revenue', 'marketing', 'campaign', 'leads', 'customer', 'satisfaction']
const entities = await brain.extract(businessDoc, {
types: [NounType.KPI, NounType.Process, NounType.Customer]
})
// [
// { text: 'revenue', type: 'KPI', confidence: 0.81 },
// { text: 'Customer satisfaction', type: 'KPI', confidence: 0.87 }
// ]
```
## Advanced Usage
### With Vector Embeddings
```typescript
const entities = await brain.extract(text, {
includeVectors: true
})
// Use embeddings for custom similarity search
for (const entity of entities) {
const similar = await brain.similar(entity.vector, { limit: 5 })
console.log(`Similar to ${entity.text}:`, similar)
}
```
### Custom Entity Processing
```typescript
const entities = await brain.extract(text)
// Group by type
const byType = entities.reduce((acc, entity) => {
if (!acc[entity.type]) acc[entity.type] = []
acc[entity.type].push(entity)
return acc
}, {})
console.log('Services:', byType[NounType.Service])
console.log('APIs:', byType[NounType.API])
console.log('Concepts:', byType[NounType.Concept])
```
### Batch Processing
```typescript
const documents = [doc1, doc2, doc3, /* ... */]
// Extract concepts from all documents
const allConcepts = await Promise.all(
documents.map(doc => brain.extractConcepts(doc))
)
// Combine and deduplicate
const uniqueConcepts = [...new Set(allConcepts.flat())]
console.log('All concepts:', uniqueConcepts)
```
## Zero-Config Design
Neural extraction works out-of-the-box:
- ✅ No configuration required
- ✅ No training needed
- ✅ No API keys needed
- ✅ Works with all storage adapters
- ✅ Automatic caching and optimization
- ✅ Sensible defaults for all parameters
## See Also
- [VFS Core Documentation](./VFS_CORE.md) - Complete filesystem API
- [Semantic VFS](./SEMANTIC_VFS.md) - Multi-dimensional file access
- [Triple Intelligence™](../architecture/triple-intelligence.md) - Underlying architecture
- [NounType Taxonomy](../architecture/noun-verb-taxonomy.md) - Complete type reference

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# Projection Strategy API
## Creating Custom Semantic Dimensions
Projection strategies allow you to create custom ways to organize and access files in Semantic VFS. This guide shows you how to build your own.
---
## What is a Projection Strategy?
A **projection strategy** maps a semantic dimension (like "priority" or "language") to actual file entities using Brainy queries.
**Example:**
```typescript
/by-priority/high → Files with metadata.priority = 'high'
/by-language/typescript → Files with .ts extension
```
---
## Interface Definition
Every projection must implement the `ProjectionStrategy` interface:
```typescript
export interface ProjectionStrategy {
/**
* Unique name for this dimension
* Used in paths like: /by-{name}/...
*/
readonly name: string
/**
* Convert dimension value to Brainy FindParams
* This is for documentation/debugging (not always used)
*
* @param value - The dimension value (e.g., 'high' for priority)
* @param subpath - Optional file filter within dimension
*/
toQuery(value: any, subpath?: string): FindParams
/**
* Resolve dimension value to entity IDs
* This is the MAIN method that does the work
*
* @param brain - Brainy instance (use brain.find, brain.similar, etc.)
* @param vfs - VirtualFileSystem instance
* @param value - The dimension value to resolve
* @returns Array of entity IDs matching this dimension
*/
resolve(brain: Brainy, vfs: VirtualFileSystem, value: any): Promise<string[]>
/**
* OPTIONAL: List all items in this dimension
* Used for directory listings like: readdir('/by-priority')
*
* @param brain - Brainy instance
* @param vfs - VirtualFileSystem instance
* @param limit - Max results to return
*/
list?(brain: Brainy, vfs: VirtualFileSystem, limit?: number): Promise<VFSEntity[]>
}
```
---
## Quick Start: Priority Projection
Let's build a projection that organizes files by priority (high, medium, low):
### Step 1: Create the Strategy Class
```typescript
import { BaseProjectionStrategy } from '@soulcraft/brainy/vfs/semantic'
import { Brainy } from '@soulcraft/brainy'
import { VirtualFileSystem, VFSEntity } from '@soulcraft/brainy/vfs'
export class PriorityProjection extends BaseProjectionStrategy {
readonly name = 'priority'
/**
* Convert priority value to FindParams
*/
toQuery(priority: string, subpath?: string) {
const query = {
where: {
vfsType: 'file',
priority: priority // Match metadata.priority field
},
limit: 1000
}
// Filter by filename if subpath provided
if (subpath) {
query.where = {
...query.where,
anyOf: [
{ name: subpath },
{ path: { endsWith: subpath } }
]
}
}
return query
}
/**
* Resolve priority to entity IDs
*/
async resolve(brain: Brainy, vfs: VirtualFileSystem, priority: string): Promise<string[]> {
// Query Brainy for files with this priority
const results = await brain.find({
where: {
vfsType: 'file',
priority: priority
},
limit: 1000
})
// Extract entity IDs using helper from base class
return this.extractIds(results)
}
/**
* List all files that have priority metadata
*/
async list(brain: Brainy, vfs: VirtualFileSystem, limit = 100): Promise<VFSEntity[]> {
const results = await brain.find({
where: {
vfsType: 'file',
priority: { exists: true }
},
limit
})
return results.map(r => r.entity as VFSEntity)
}
}
```
### Step 2: Register the Strategy
```typescript
import { Brainy } from '@soulcraft/brainy'
import { PriorityProjection } from './PriorityProjection'
const brain = new Brainy()
await brain.init()
const vfs = brain.vfs()
await vfs.init()
// Register custom projection
// TODO: This will be exposed as public API
// For now, access via internal property
vfs['projectionRegistry'].register(new PriorityProjection())
```
### Step 3: Use It!
```typescript
// Write files with priority metadata
await vfs.writeFile('/src/critical-fix.ts', code, {
metadata: { priority: 'high' }
})
await vfs.writeFile('/src/nice-to-have.ts', code, {
metadata: { priority: 'low' }
})
// Access by priority
const highPriority = await vfs.readdir('/by-priority/high')
console.log(highPriority) // ['critical-fix.ts']
const lowPriority = await vfs.readdir('/by-priority/low')
console.log(lowPriority) // ['nice-to-have.ts']
```
---
## Base Class Helpers
`BaseProjectionStrategy` provides utility methods:
### `extractIds(results: Result[]): string[]`
Extracts entity IDs from Brainy query results:
```typescript
const results = await brain.find({ where: { ... } })
return this.extractIds(results) // ['id1', 'id2', ...]
```
### `filterFiles(brain: Brainy, ids: string[]): Promise<string[]>`
Filters to only file entities (removes directories):
```typescript
const allIds = await this.traverseGraph(...)
return await this.filterFiles(brain, allIds) // Only files
```
---
## Advanced Examples
### Example 1: Language Projection
Organize files by programming language:
```typescript
export class LanguageProjection extends BaseProjectionStrategy {
readonly name = 'language'
// Map extensions to languages
private languageMap = {
ts: 'typescript',
js: 'javascript',
py: 'python',
go: 'go',
rs: 'rust'
}
toQuery(language: string, subpath?: string) {
// Find extension for this language
const ext = Object.entries(this.languageMap)
.find(([_, lang]) => lang === language)?.[0]
return {
where: {
vfsType: 'file',
extension: ext
},
limit: 1000
}
}
async resolve(brain: Brainy, vfs: VirtualFileSystem, language: string): Promise<string[]> {
const ext = Object.entries(this.languageMap)
.find(([_, lang]) => lang === language)?.[0]
if (!ext) return []
const results = await brain.find({
where: {
vfsType: 'file',
extension: ext
},
limit: 5000
})
return this.extractIds(results)
}
async list(brain: Brainy, vfs: VirtualFileSystem, limit = 100): Promise<VFSEntity[]> {
// Return sample files from each language
const results = await brain.find({
where: { vfsType: 'file' },
limit
})
return results.map(r => r.entity as VFSEntity)
}
}
// Usage:
// /by-language/typescript → All .ts files
// /by-language/python → All .py files
```
### Example 2: Size Projection
Organize files by size category:
```typescript
export class SizeProjection extends BaseProjectionStrategy {
readonly name = 'size'
// Size categories in bytes
private readonly categories = {
tiny: [0, 1024], // < 1 KB
small: [1024, 102400], // 1-100 KB
medium: [102400, 1048576], // 100 KB - 1 MB
large: [1048576, Infinity] // > 1 MB
}
toQuery(category: string, subpath?: string) {
const [min, max] = this.categories[category] || [0, Infinity]
return {
where: {
vfsType: 'file',
size: {
greaterEqual: min,
lessThan: max
}
},
limit: 1000
}
}
async resolve(brain: Brainy, vfs: VirtualFileSystem, category: string): Promise<string[]> {
const [min, max] = this.categories[category]
if (!min && min !== 0) return []
const results = await brain.find({
where: {
vfsType: 'file',
size: {
greaterEqual: min,
lessThan: max
}
},
limit: 1000
})
return this.extractIds(results)
}
async list(brain: Brainy, vfs: VirtualFileSystem, limit = 100): Promise<VFSEntity[]> {
// Return files sorted by size
const results = await brain.find({
where: { vfsType: 'file' },
limit
})
return results
.map(r => r.entity as VFSEntity)
.sort((a, b) => (b.metadata.size || 0) - (a.metadata.size || 0))
}
}
// Usage:
// /by-size/tiny → Files < 1 KB
// /by-size/large → Files > 1 MB
```
### Example 3: Status Projection (Custom Logic)
Organize files by review status with custom logic:
```typescript
export class StatusProjection extends BaseProjectionStrategy {
readonly name = 'status'
toQuery(status: string, subpath?: string) {
return {
where: {
vfsType: 'file',
reviewStatus: status
},
limit: 1000
}
}
async resolve(brain: Brainy, vfs: VirtualFileSystem, status: string): Promise<string[]> {
// Custom logic: "needs-review" means modified in last 24h without review
if (status === 'needs-review') {
const oneDayAgo = Date.now() - (24 * 60 * 60 * 1000)
const results = await brain.find({
where: {
vfsType: 'file',
modified: { greaterEqual: oneDayAgo },
reviewStatus: { missing: true } // No review status set
},
limit: 1000
})
return this.extractIds(results)
}
// Standard status query
const results = await brain.find({
where: {
vfsType: 'file',
reviewStatus: status
},
limit: 1000
})
return this.extractIds(results)
}
async list(brain: Brainy, vfs: VirtualFileSystem, limit = 100): Promise<VFSEntity[]> {
// Return files with any review status
const results = await brain.find({
where: {
vfsType: 'file',
anyOf: [
{ reviewStatus: { exists: true } },
{ modified: { greaterEqual: Date.now() - 86400000 } }
]
},
limit
})
return results.map(r => r.entity as VFSEntity)
}
}
// Usage:
// /by-status/needs-review → Files modified in last 24h without review
// /by-status/approved → Approved files
// /by-status/rejected → Rejected files
```
---
## Using Brainy Field Operators (BFO)
Projection strategies use **Brainy Field Operators** (BFO), not MongoDB-style operators:
### Comparison Operators
```typescript
// ❌ MongoDB style (WRONG)
{ size: { $gte: 1000, $lte: 5000 } }
// ✅ BFO style (CORRECT)
{ size: { greaterEqual: 1000, lessEqual: 5000 } }
```
### Logical Operators
```typescript
// ❌ MongoDB style (WRONG)
{ $or: [{ name: 'foo' }, { name: 'bar' }] }
// ✅ BFO style (CORRECT)
{ anyOf: [{ name: 'foo' }, { name: 'bar' }] }
```
### Existence Operators
```typescript
// ❌ MongoDB style (WRONG)
{ tags: { $exists: true } }
// ✅ BFO style (CORRECT)
{ tags: { exists: true } }
```
### String Operators
```typescript
// ❌ MongoDB style (WRONG)
{ path: { $regex: /\.ts$/ } }
// ✅ BFO style (CORRECT)
{ path: { endsWith: '.ts' } }
```
### Full BFO Operator Reference
```typescript
// Comparison
{ field: value } // Exact match
{ field: { greaterThan: 10 } } // >
{ field: { greaterEqual: 10 } } // >=
{ field: { lessThan: 10 } } // <
{ field: { lessEqual: 10 } } // <=
{ field: { not: value } } // !=
// Logical
{ anyOf: [{ a: 1 }, { b: 2 }] } // OR
{ allOf: [{ a: 1 }, { b: 2 }] } // AND
// Existence
{ field: { exists: true } } // Field exists
{ field: { missing: true } } // Field doesn't exist
// String
{ field: { startsWith: 'prefix' } } // Starts with
{ field: { endsWith: 'suffix' } } // Ends with
{ field: { matches: 'pattern' } } // Regex match
// Array
{ array: { contains: 'item' } } // Array contains item
{ array: { hasAll: ['a', 'b'] } } // Has all items
{ array: { oneOf: ['a', 'b', 'c'] } } // Value in list
```
---
## Performance Guidelines
### 1. Use Indexes
All metadata fields are automatically indexed. Use direct equality or range queries for best performance:
```typescript
// ✅ Fast: Direct index lookup (O(log n))
{ priority: 'high' }
{ size: { greaterEqual: 1000 } }
// ⚠️ Slower: Must scan results
{ path: { matches: /complex-regex/ } }
```
### 2. Limit Results
Always set reasonable limits:
```typescript
async resolve(brain, vfs, value) {
const results = await brain.find({
where: { ... },
limit: 1000 // Prevent unbounded queries
})
return this.extractIds(results)
}
```
### 3. Avoid Post-Filtering When Possible
If you need post-filtering, consider flattening data:
```typescript
// ❌ Slow: Fetch 5000, filter in memory
const all = await brain.find({ where: { type: 'file' }, limit: 5000 })
return all.filter(item => item.metadata.nested.value === target)
// ✅ Fast: Flatten during write, query directly
// Store: metadata.nested_value = target
const results = await brain.find({
where: { nested_value: target },
limit: 1000
})
```
### 4. Cache Expensive Operations
Use the projection's resolve cache:
```typescript
// Automatic caching in SemanticPathResolver
// Results cached for 5 minutes by default
// No manual caching needed!
```
---
## Testing Projections
### Unit Test Example
```typescript
import { describe, it, expect, beforeAll } from 'vitest'
import { Brainy } from '@soulcraft/brainy'
import { PriorityProjection } from './PriorityProjection'
describe('PriorityProjection', () => {
let brain: Brainy
let vfs: any
let projection: PriorityProjection
beforeAll(async () => {
brain = new Brainy()
await brain.init()
vfs = brain.vfs()
await vfs.init()
projection = new PriorityProjection()
})
it('should resolve high priority files', async () => {
// Create test files
await vfs.writeFile('/test1.ts', 'code', {
metadata: { priority: 'high' }
})
await vfs.writeFile('/test2.ts', 'code', {
metadata: { priority: 'low' }
})
// Resolve high priority
const ids = await projection.resolve(brain, vfs, 'high')
expect(ids).toHaveLength(1)
const entity = await brain.get(ids[0])
expect(entity.metadata.priority).toBe('high')
})
it('should list all files with priority', async () => {
const entities = await projection.list(brain, vfs, 100)
expect(entities.length).toBeGreaterThan(0)
expect(entities.every(e => e.metadata.priority)).toBe(true)
})
})
```
---
## Best Practices
### 1. ✅ Name projections clearly
```typescript
// ✅ Good
readonly name = 'priority' // /by-priority/high
readonly name = 'language' // /by-language/typescript
// ❌ Bad
readonly name = 'proj1' // /by-proj1/??? unclear
```
### 2. ✅ Document expected metadata
```typescript
/**
* Priority Projection
*
* Requires metadata fields:
* - priority: string ('high' | 'medium' | 'low')
*
* Usage:
* /by-priority/high
*/
export class PriorityProjection extends BaseProjectionStrategy {
// ...
}
```
### 3. ✅ Handle missing data gracefully
```typescript
async resolve(brain, vfs, value) {
const results = await brain.find({
where: { priority: value },
limit: 1000
})
// Return empty array if no results, don't throw
return this.extractIds(results) // [] if empty
}
```
### 4. ✅ Validate input
```typescript
async resolve(brain, vfs, priority: string) {
// Validate priority value
const valid = ['high', 'medium', 'low']
if (!valid.includes(priority)) {
return [] // Or throw error
}
// Continue with query...
}
```
---
## Common Patterns
### Pattern 1: Enum-Based Projection
For fixed sets of values (status, priority, type):
```typescript
private readonly validValues = ['draft', 'review', 'approved']
async resolve(brain, vfs, status: string) {
if (!this.validValues.includes(status)) return []
// ... query
}
```
### Pattern 2: Range-Based Projection
For numeric or time ranges:
```typescript
private readonly ranges = {
recent: Date.now() - 86400000, // Last 24h
week: Date.now() - 7 * 86400000, // Last week
month: Date.now() - 30 * 86400000 // Last month
}
async resolve(brain, vfs, period: string) {
const since = this.ranges[period]
if (!since) return []
const results = await brain.find({
where: {
modified: { greaterEqual: since }
}
})
return this.extractIds(results)
}
```
### Pattern 3: Computed Projection
Combine multiple criteria:
```typescript
async resolve(brain, vfs, value: string) {
// "stale" = not modified in 30 days AND no recent access
if (value === 'stale') {
const thirtyDaysAgo = Date.now() - 30 * 86400000
const results = await brain.find({
where: {
allOf: [
{ modified: { lessThan: thirtyDaysAgo } },
{ accessed: { lessThan: thirtyDaysAgo } }
]
}
})
return this.extractIds(results)
}
// Regular query for other values...
}
```
---
## Troubleshooting
### Projection returns empty results
1. Check metadata exists: `console.log(entity.metadata)`
2. Verify query syntax: Use BFO operators, not MongoDB
3. Check limits: Increase limit if needed
### Slow performance
1. Check if field is indexed: All metadata fields are auto-indexed
2. Avoid post-filtering: Flatten complex structures
3. Use appropriate limits: Don't fetch more than needed
### Type errors
1. Import correct types: `import { Brainy, VirtualFileSystem } from '@soulcraft/brainy'`
2. Use `as VFSEntity` when mapping results
3. Check BaseProjectionStrategy import
---
## See Also
- [Semantic VFS Guide](./SEMANTIC_VFS.md) - Using semantic paths
- [Performance Tuning](./PERFORMANCE_TUNING.md) - Optimization guide
- [VFS Core API](./VFS_CORE.md) - Base VFS operations

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@ -286,7 +286,7 @@ By using this quick start, you avoided these common mistakes:
Your file explorer is now working! Here's what to explore next:
1. **[File Operations](./VFS_API_GUIDE.md#file-operations)** - Read, write, and manipulate files
2. **[Semantic Features](./VFS_KNOWLEDGE_LAYER.md)** - Connect files to concepts and entities
2. **[Semantic Features](./SEMANTIC_VFS.md)** - Multi-dimensional file access and neural extraction
3. **[Performance Optimization](./building-file-explorers.md#performance)** - Handle large directories efficiently
4. **[Advanced Search](./VFS_API_GUIDE.md#search-operations)** - Complex queries and filters

View file

@ -2,13 +2,14 @@
> Transform your filesystem into an intelligent knowledge graph where every file is a living entity with semantic understanding, relationships, and AI-powered organization.
## 🧠 Knowledge Layer Available!
## 📚 Complete VFS Documentation
**For advanced features like semantic versioning, persistent entities, and universal concepts, see:**
- **[Knowledge Layer Overview](../KNOWLEDGE_LAYER_OVERVIEW.md)** - Non-technical introduction
- **[Knowledge Layer API](KNOWLEDGE_LAYER_API.md)** - Advanced features and capabilities
- **[Real-World Examples](KNOWLEDGE_LAYER_EXAMPLES.md)** - Complete use cases for stories, APIs, research, and more
- **[VFS API Guide](VFS_API_GUIDE.md)** - Complete filesystem API reference
**Essential guides to get started:**
- **[VFS Core](VFS_CORE.md)** - Complete filesystem architecture and API
- **[Semantic VFS](SEMANTIC_VFS.md)** - Multi-dimensional file access (6 semantic dimensions)
- **[Neural Extraction](NEURAL_EXTRACTION.md)** - AI-powered concept and entity extraction
- **[Examples & Scenarios](VFS_EXAMPLES_SCENARIOS.md)** - Real-world use cases and code
- **[VFS API Guide](VFS_API_GUIDE.md)** - Complete API reference
## What is Brainy VFS?

486
docs/vfs/SEMANTIC_VFS.md Normal file
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@ -0,0 +1,486 @@
# Semantic VFS - Revolutionary File System
## What is Semantic VFS?
Semantic VFS transforms traditional hierarchical file systems into **multi-dimensional knowledge graphs**. The same file can be accessed through multiple semantic dimensions simultaneously.
### Traditional vs Semantic
**Traditional File Systems:**
```
/src/auth/login.ts # One path, one location
/src/users/profile.ts # Separate location
```
**Semantic VFS:**
```
# Traditional path (still works!)
/src/auth/login.ts
# By concept
/by-concept/authentication/login.ts
/by-concept/security/login.ts
# By author
/by-author/alice/login.ts
# By time
/as-of/2024-03-15/login.ts
# By relationship
/related-to/src/users/profile.ts/depth-2
```
**The same file, accessible 6+ different ways!** This is **polymorphic file access**.
---
## Why Semantic VFS?
### 1. **Natural Organization**
Developers think in concepts, not directories:
```typescript
// Find all authentication-related files
const authFiles = await vfs.readdir('/by-concept/authentication')
// Find all files Alice worked on
const aliceFiles = await vfs.readdir('/by-author/alice')
```
### 2. **Time Travel**
See your codebase as it existed at any point:
```typescript
// Code from March 15th
const snapshot = await vfs.readdir('/as-of/2024-03-15')
// Compare with today
const current = await vfs.readdir('/src')
```
### 3. **Knowledge Graph Navigation**
Navigate by semantic relationships:
```typescript
// Files related to auth system (within 2 hops)
const related = await vfs.readdir('/related-to/src/auth.ts/depth-2')
// Files similar to this implementation
const similar = await vfs.readdir('/similar-to/src/auth.ts/threshold-0.8')
```
### 4. **Tag-Based Organization**
Organize by purpose, not location:
```typescript
// All security-critical files
const security = await vfs.readdir('/by-tag/security')
// All experimental features
const experiments = await vfs.readdir('/by-tag/experimental')
```
---
## Supported Semantic Dimensions
### 1. Traditional Path (Hierarchical)
```typescript
await vfs.readFile('/src/auth/login.ts')
// Works exactly like a normal filesystem
```
### 2. By Concept (Semantic)
```typescript
await vfs.readdir('/by-concept/authentication')
// Returns all files about authentication
await vfs.readFile('/by-concept/authentication/login.ts')
// Find specific file within concept
```
**How it works:** Uses `brain.extractConcepts()` with NeuralEntityExtractor to extract concepts from file content using embeddings and the NounType taxonomy. Indexes concept names for O(log n) queries. See [Neural Extraction API](./NEURAL_EXTRACTION.md) for details.
### 3. By Author (Ownership)
```typescript
await vfs.readdir('/by-author/alice')
// All files owned/modified by alice
await vfs.stat('/by-author/alice/config.ts')
// Check specific file
```
**How it works:** Tracks owner metadata on every file. Indexed by MetadataIndexManager.
### 4. By Time (Temporal)
```typescript
await vfs.readdir('/as-of/2024-03-15')
// Files modified on March 15, 2024
await vfs.readFile('/as-of/2024-03-15/src/auth.ts')
// Read auth.ts as it existed that day
```
**How it works:** Tracks `modified` timestamp. Uses B-tree range queries (`greaterEqual`/`lessEqual`) for O(log n) performance.
### 5. By Relationship (Graph)
```typescript
await vfs.readdir('/related-to/src/auth.ts/depth-2')
// Files within 2 relationship hops
await vfs.readdir('/related-to/src/auth.ts/depth-2/types-contains,references')
// Only follow 'contains' and 'references' relationships
```
**How it works:** Uses GraphAdjacencyIndex for O(1) graph traversal. Supports depth limits and relationship type filtering.
### 6. By Similarity (Vector)
```typescript
await vfs.readdir('/similar-to/src/auth.ts/threshold-0.8')
// Files with 80%+ similarity to auth.ts
await vfs.similar('/src/auth.ts', { threshold: 0.9, limit: 10 })
// Top 10 most similar files (90%+ match)
```
**How it works:** Uses HNSW vector index for O(log n) nearest neighbor search. Based on content embeddings.
### 7. By Tag (Classification)
```typescript
await vfs.readdir('/by-tag/security')
// All security-tagged files
await vfs.writeFile('/src/admin.ts', code, {
metadata: { tags: ['security', 'admin'] }
})
// Tag files on write
```
**How it works:** Stores tags in metadata. Indexed for fast queries.
---
## Performance Characteristics
### Scalability to Millions of Files
All semantic paths use **indexed data structures** for optimal performance:
| Dimension | Data Structure | Time Complexity | Million-Scale Ready |
|-----------|---------------|-----------------|---------------------|
| Traditional | PathCache + Graph | O(path depth) | ✅ Yes |
| Concept | MetadataIndex (B-tree) | O(log n) | ✅ Yes* |
| Author | MetadataIndex (B-tree) | O(log n) | ✅ Yes |
| Time | MetadataIndex (B-tree) | O(log n) | ✅ Yes |
| Relationship | GraphAdjacency | O(depth) | ✅ Yes |
| Similarity | HNSW Index | O(log n) | ✅ Yes |
| Tag | MetadataIndex (B-tree) | O(log n) | ✅ Yes* |
\* *Requires concept/tag flattening (automatic in future versions)*
### Cache Strategy
Multi-layer caching ensures hot paths are O(1):
```
Request → Hot Path Cache (O(1))
→ Semantic Cache (5 min TTL)
→ Index Lookup (O(log n))
```
---
## Usage Examples
### Example 1: Find All Files by Concept
```typescript
const brain = new Brainy()
await brain.init()
const vfs = brain.vfs()
await vfs.init()
// Write files (concepts extracted automatically)
await vfs.writeFile('/src/auth/login.ts', `
export function authenticate(user, password) {
// Authentication logic
}
`)
// Access by concept
const authFiles = await vfs.readdir('/by-concept/authentication')
console.log(authFiles)
// ['login.ts', 'signup.ts', 'oauth.ts']
```
### Example 2: Time Travel
```typescript
// See what changed today
const today = new Date().toISOString().split('T')[0]
const todaysFiles = await vfs.readdir(`/as-of/${today}`)
// Compare with yesterday
const yesterday = new Date(Date.now() - 86400000).toISOString().split('T')[0]
const yesterdaysFiles = await vfs.readdir(`/as-of/${yesterday}`)
const newFiles = todaysFiles.filter(f => !yesterdaysFiles.includes(f))
console.log('New files today:', newFiles)
```
### Example 3: Graph Navigation
```typescript
// Find all files related to auth
const authId = await vfs.resolvePath('/src/auth.ts')
const related = await vfs.readdir('/related-to/src/auth.ts/depth-2')
// Get relationship details
for (const file of related) {
const rels = await vfs.getRelationships(file.path)
console.log(`${file.name}: ${rels.length} relationships`)
}
```
### Example 4: Semantic Search
```typescript
// Find similar implementations
const similar = await vfs.similar('/src/auth.ts', {
threshold: 0.8,
limit: 10
})
for (const result of similar) {
console.log(`${result.entity.name}: ${result.similarity.toFixed(2)}`)
}
```
---
## API Reference
### Reading Semantic Paths
All standard VFS methods work with semantic paths:
```typescript
// Read directory
await vfs.readdir('/by-concept/authentication')
// Read file
await vfs.readFile('/by-concept/authentication/login.ts')
// Get stats
await vfs.stat('/by-author/alice/config.ts')
// Check existence
await vfs.exists('/as-of/2024-03-15/src/auth.ts')
```
### Writing Files
Files are automatically indexed for semantic access:
```typescript
await vfs.writeFile('/src/auth.ts', content, {
metadata: {
tags: ['security', 'authentication'],
owner: 'alice'
},
extractConcepts: true, // default: true
extractEntities: true, // default: true
recordEvent: true // default: true
})
```
### Polymorphic Access
The same file is accessible through multiple paths:
```typescript
// All these resolve to the SAME file entity:
const id1 = await vfs.resolvePath('/src/auth/login.ts')
const id2 = await vfs.resolvePath('/by-concept/authentication/login.ts')
const id3 = await vfs.resolvePath('/by-author/alice/login.ts')
console.log(id1 === id2 && id2 === id3) // true
```
---
## Extending with Custom Projections
Create your own semantic dimensions:
```typescript
import { BaseProjectionStrategy } from '@soulcraft/brainy/vfs/semantic'
class PriorityProjection extends BaseProjectionStrategy {
readonly name = 'priority'
async resolve(brain, vfs, priority) {
return await brain.find({
where: {
vfsType: 'file',
priority: priority // Custom metadata field
},
limit: 1000
})
.then(results => results.map(r => r.id))
}
async list(brain, vfs, limit = 100) {
const results = await brain.find({
where: {
vfsType: 'file',
priority: { exists: true }
},
limit
})
return results.map(r => r.entity)
}
}
// Register custom projection
const brain = new Brainy()
await brain.init()
const vfs = brain.vfs()
// Access via VFS internals (will be exposed in future API)
vfs.projectionRegistry.register(new PriorityProjection())
// Now use it!
const highPriority = await vfs.readdir('/by-priority/high')
```
See [PROJECTION_STRATEGY_API.md](./PROJECTION_STRATEGY_API.md) for full guide.
---
## Architecture
### Triple Intelligence™ Foundation
Semantic VFS is built on Brainy's Triple Intelligence™:
```
┌─────────────────────────────────────────┐
│ Semantic VFS Layer │
├─────────────────────────────────────────┤
│ ProjectionRegistry + Strategies │
├─────────────────────────────────────────┤
│ SemanticPathResolver │
├─────────────────────────────────────────┤
│ │
│ Triple Intelligence™ (Brainy) │
│ ┌─────────┬─────────┬─────────────┐ │
│ │ Vector │ Graph │ Metadata │ │
│ │ HNSW │ Adj │ B-tree │ │
│ │ O(log n)│ O(1) │ O(log n) │ │
│ └─────────┴─────────┴─────────────┘ │
└─────────────────────────────────────────┘
```
### Real Implementations, Zero Mocks
Every component uses **production Brainy APIs**:
- `brain.find()` - Real metadata queries (brainy.ts:580)
- `brain.similar()` - Real HNSW search (brainy.ts:680)
- `brain.getRelations()` - Real graph traversal (brainy.ts:803)
- `MetadataIndexManager` - Real B-tree indexes
- `GraphAdjacencyIndex` - Real graph storage
- `HNSW Index` - Real vector search
**No mocks. No stubs. No fake code.**
---
## Best Practices
### 1. Use Semantic Paths for Discovery
```typescript
// ❌ Don't hardcode paths
const files = ['/src/auth.ts', '/src/login.ts', '/src/oauth.ts']
// ✅ Discover by concept
const authFiles = await vfs.readdir('/by-concept/authentication')
```
### 2. Tag Strategically
```typescript
// ✅ Good: Clear, actionable tags
await vfs.writeFile(path, code, {
metadata: { tags: ['security', 'requires-review', 'public-api'] }
})
// ❌ Bad: Vague, redundant tags
await vfs.writeFile(path, code, {
metadata: { tags: ['code', 'file', 'important'] }
})
```
### 3. Optimize for Your Scale
```typescript
// For < 100K files: Post-filtering is fine
// For > 100K files: Use flattened indexes
// Force index refresh after bulk operations
await brain.storage.rebuildIndexes()
```
### 4. Combine Dimensions
```typescript
// Find security files Alice worked on this week
const aliceFiles = await vfs.readdir('/by-author/alice')
const securityFiles = await vfs.readdir('/by-tag/security')
const thisWeek = await vfs.readdir(`/as-of/${weekAgo}`)
const intersection = aliceFiles
.filter(f => securityFiles.includes(f))
.filter(f => thisWeek.includes(f))
```
---
## Troubleshooting
### Concepts Not Being Extracted
```typescript
// Check if concepts are enabled (default: true)
await vfs.writeFile(path, code, { extractConcepts: true })
// Verify concept extraction works
const entity = await vfs.getEntity(path)
console.log(entity.metadata.concepts)
```
### Slow Queries on Large Datasets
```typescript
// Check if indexes are built
const stats = await brain.storage.getIndexStats()
console.log(stats)
// Rebuild if needed
await brain.storage.rebuildIndexes()
```
### Semantic Path Returns Empty
```typescript
// Check if metadata exists
const files = await vfs.readdir('/src')
for (const file of files) {
const entity = await vfs.getEntity(file.path)
console.log(entity.metadata)
}
```
---
## What's Next?
- **Natural Language Paths**: `/find "authentication logic"`
- **Intent-Based Access**: `/to-review`, `/to-deploy`
- **Temporal Queries**: `/changed-since/2024-03-01`
- **Custom Dimensions**: Plugin system for domain-specific projections
---
## See Also
- [Projection Strategy API](./PROJECTION_STRATEGY_API.md) - Create custom projections
- [Performance Tuning](./PERFORMANCE_TUNING.md) - Million-scale optimization
- [VFS Core API](./VFS_CORE.md) - Base VFS operations
- [Triple Intelligence™](./TRIPLE_INTELLIGENCE.md) - Underlying architecture

View file

@ -794,8 +794,10 @@ console.log('VFS Stats:', stats)
---
The Virtual Filesystem API provides a powerful, intelligent alternative to traditional filesystems. With semantic search, rich metadata, and graph relationships, your files become living entities in a connected knowledge system.
The Virtual Filesystem API provides a powerful, intelligent alternative to traditional filesystems. With semantic search, rich metadata, graph relationships, and AI-powered concept extraction, your files become living entities in a connected knowledge system.
For advanced features like event recording, semantic versioning, and persistent entities, see the [Knowledge Layer API Documentation](./KNOWLEDGE_LAYER_API.md).
For semantic file access and neural extraction features, see:
- [Semantic VFS Guide](./SEMANTIC_VFS.md) - Multi-dimensional file access
- [Neural Extraction API](./NEURAL_EXTRACTION.md) - AI-powered concept and entity extraction
Ready to make your filesystem intelligent? 🚀

View file

@ -275,19 +275,9 @@ await vfs.importDirectory('/local/project', { targetPath: '/vfs/project' })
### GitBridge Integration
GitBridge provides Git import/export capabilities. It can be used in two ways:
GitBridge provides Git import/export capabilities:
#### Option 1: Via Knowledge Layer (Recommended)
```javascript
// Enable Knowledge Layer to get Git methods
await vfs.enableKnowledgeLayer()
// Now Git methods are available on VFS
await vfs.exportToGit('/project', '/local/git/repo')
await vfs.importFromGit('/local/git/repo', '/project')
```
#### Option 2: Direct GitBridge Usage
#### GitBridge Usage
```javascript
// Import and instantiate GitBridge
import { GitBridge } from '@soulcraft/brainy'
@ -327,9 +317,9 @@ await gitBridge.importFromGit('/local/git/repo', '/project', {
- Compression ratio tracked in metadata
### Background Processing
- Non-blocking Knowledge Layer processing
- Asynchronous embedding generation
- Deferred relationship indexing
- Non-blocking metadata extraction
## Error Handling
@ -373,45 +363,32 @@ VFS scales to millions of files:
## Method Availability
### Core VFS Methods (Always Available)
These methods are available immediately after VFS initialization:
All VFS methods are available immediately after initialization:
```javascript
const vfs = brain.vfs()
await vfs.init()
// ✅ All these work without Knowledge Layer:
await vfs.writeFile() // File operations
await vfs.readFile()
await vfs.mkdir() // Directory operations
await vfs.readdir()
await vfs.stat() // Metadata
await vfs.search() // Semantic search
await vfs.addRelationship() // Relationships
await vfs.addTodo() // Todo management
await vfs.exportToJSON() // Export
await vfs.bulkWrite() // Bulk operations
```
// Core file operations
await vfs.writeFile() // Write files
await vfs.readFile() // Read files
await vfs.mkdir() // Create directories
await vfs.readdir() // List directory contents
await vfs.stat() // Get file metadata
### Knowledge Layer Methods (Require Enablement)
// Semantic features
await vfs.search() // Semantic search
await vfs.findSimilar() // Find similar files
await vfs.addRelationship()// Add relationships
These methods are only available after enabling the Knowledge Layer:
// Todo management
await vfs.addTodo() // Add todos
await vfs.getTodos() // Get todos
await vfs.setMetadata() // Set metadata
```javascript
await vfs.enableKnowledgeLayer()
// 🔮 Now these methods are available:
await vfs.createEntity() // Entity management
await vfs.linkEntities()
await vfs.createConcept() // Concept system
await vfs.findByConcept()
await vfs.getVersions() // Versioning
await vfs.getHistory() // History tracking
await vfs.exportToGit() // Git integration (wrapper)
await vfs.importFromGit()
await vfs.exportToMarkdown()// Export formats
await vfs.getTimeline() // Timeline analysis
// Export
await vfs.exportToJSON() // Export to JSON
await vfs.bulkWrite() // Bulk operations
```
## Complete Example

View file

@ -1,8 +1,10 @@
# VFS Examples and Scenarios
> **⚠️ DOCUMENTATION IN PROGRESS**: This document is being updated to reflect recent VFS architecture changes. Many examples below reference deprecated Knowledge Layer methods. Updated examples coming soon. For current VFS capabilities, see [VFS_CORE.md](./VFS_CORE.md) and [SEMANTIC_VFS.md](./SEMANTIC_VFS.md).
## Real-World Scenarios
This document demonstrates how VFS with Knowledge Layer enables powerful real-world applications.
This document demonstrates how VFS enables powerful real-world applications with semantic search, relationships, and AI-powered concept extraction.
### Legend
- ✅ **Real VFS methods** - Fully implemented and working
@ -24,7 +26,6 @@ async function novelWritingProject() {
const vfs = brain.vfs()
await vfs.init()
await vfs.enableKnowledgeLayer()
// Create project structure ✅
await vfs.mkdir('/novel')
@ -32,22 +33,26 @@ async function novelWritingProject() {
await vfs.mkdir('/novel/characters')
await vfs.mkdir('/novel/worldbuilding')
// Define main characters as persistent entities ✅
const protagonist = await vfs.createEntity({
name: 'Elena Blackwood',
type: 'character',
description: 'A skilled detective with a mysterious past',
attributes: {
age: 32,
occupation: 'Private Investigator',
skills: ['deduction', 'combat', 'languages'],
personality: ['determined', 'secretive', 'compassionate']
// Define main characters as files with rich metadata ✅
await vfs.writeFile('/novel/characters/elena-blackwood.md', `
# Elena Blackwood
A skilled detective with a mysterious past.
## Character Profile
- Age: 32
- Occupation: Private Investigator
- Skills: Deduction, combat, languages
- Personality: Determined, secretive, compassionate
`, {
metadata: {
characterType: 'protagonist',
tags: ['detective', 'mysterious', 'protagonist']
}
})
const antagonist = await vfs.createEntity({
name: 'Marcus Void',
type: 'character',
await vfs.writeFile('/novel/characters/marcus-void.md', `
# Marcus Void
description: 'A wealthy industrialist with dark secrets',
attributes: {
age: 45,
@ -147,7 +152,6 @@ async function gameDevProject() {
const vfs = brain.vfs()
await vfs.init()
await vfs.enableKnowledgeLayer()
// Game project structure
await vfs.mkdir('/game')
@ -293,9 +297,8 @@ async function softwareProject() {
const vfs = brain.vfs()
await vfs.init()
await vfs.enableKnowledgeLayer()
// Import existing git repository ✅ (Knowledge Layer provides wrapper)
// Import existing git repository ✅
await vfs.importFromGit('/local/repos/webapp', '/project')
// Define architectural concepts
@ -460,7 +463,6 @@ async function unifiedKnowledgeBase() {
const vfs = brain.vfs()
await vfs.init()
await vfs.enableKnowledgeLayer()
// Create separate project spaces
await vfs.mkdir('/novel')

View file

@ -1,460 +0,0 @@
# VFS + Knowledge Layer Integration
## Overview
The Knowledge Layer is an optional augmentation that transforms VFS from a filesystem into an intelligent knowledge management system. When enabled, it adds event recording, semantic versioning, persistent entities, universal concepts, and Git integration.
## Enabling Knowledge Layer
```javascript
const brain = new Brainy({
storage: { type: 'memory' },
silent: true
})
await brain.init()
const vfs = brain.vfs()
await vfs.init()
// Enable Knowledge Layer augmentation
await vfs.enableKnowledgeLayer()
// Now VFS has additional intelligent features
```
## Architecture
The Knowledge Layer consists of five integrated systems:
### 1. EventRecorder
Tracks all filesystem operations as searchable events with embeddings.
### 2. SemanticVersioning
Creates versions based on semantic meaning changes, not just byte differences.
### 3. PersistentEntitySystem
Tracks evolving entities (characters, concepts, systems) across files.
### 4. ConceptSystem
Manages universal concepts that span multiple files and projects.
### 5. GitBridge
Enables import/export between VFS and Git repositories.
## Event Recording
Every filesystem operation is recorded as an event:
```javascript
// All operations are automatically recorded
await vfs.writeFile('/doc.txt', 'Initial content')
await vfs.appendFile('/doc.txt', '\nMore content')
await vfs.rename('/doc.txt', '/document.txt')
// Query events
const history = await vfs.getHistory('/document.txt')
for (const event of history) {
console.log(event.type, event.timestamp, event.user)
// 'create' 2025-01-20T10:00:00Z 'alice'
// 'write' 2025-01-20T10:01:00Z 'alice'
// 'rename' 2025-01-20T10:02:00Z 'alice'
}
// Get timeline of events
const events = await vfs.getTimeline({ from: '2025-01-01' })
```
### Event Types
- `create` - File/directory created
- `write` - Content written
- `append` - Content appended
- `delete` - File/directory deleted
- `rename` - Path changed
- `move` - File relocated
- `metadata` - Metadata updated
- `relationship` - Relationship added/removed
### Event Schema
```javascript
{
id: 'uuid',
type: 'write',
path: '/document.txt',
oldPath: null, // For renames/moves
timestamp: Date.now(),
user: 'current-user',
size: 1024, // Bytes affected
contentHash: 'sha256...', // Content fingerprint
vector: [0.1, 0.2, ...], // Semantic embedding
metadata: {
mimeType: 'text/plain',
encoding: 'utf8'
}
}
```
## Semantic Versioning
Versions are created when content *meaning* changes significantly:
```javascript
// Initial version
await vfs.writeFile('/story.txt', 'Once upon a time...')
// Minor change - no new version (typo fix)
await vfs.writeFile('/story.txt', 'Once upon a time...')
// Major change - creates new version (plot development)
await vfs.writeFile('/story.txt', 'Once upon a time, the kingdom fell...')
// Get versions
const versions = await vfs.getVersions('/story.txt')
for (const version of versions) {
console.log(version.id, version.timestamp, version.semanticHash)
// Compare semantic similarity between versions
console.log(version.similarity) // 0.45 (significantly different)
}
// Restore version
await vfs.restoreVersion('/story.txt', versions[0].id)
// Compare versions by restoring
const v1Content = await vfs.getVersion('/story.txt', v1.id)
const v2Content = await vfs.getVersion('/story.txt', v2.id)
// Compare the content as needed
```
### Version Triggers
- Semantic similarity < 0.7 threshold
- New concepts introduced
- Major structural changes
- Explicit version creation
## Persistent Entities
Track characters, systems, and entities across files:
```javascript
// Create persistent entity
const character = await vfs.createEntity({
name: 'Alice',
type: 'character',
description: 'Main protagonist, a curious explorer',
attributes: {
age: 25,
occupation: 'Archaeologist',
traits: ['brave', 'intelligent', 'curious']
}
})
// Entity appears across multiple files
await vfs.writeFile('/chapter1.txt', 'Alice entered the ancient tomb...')
await vfs.writeFile('/chapter2.txt', 'Alice decoded the hieroglyphs...')
// Track entity across files
const occurrences = await vfs.findEntityOccurrences('Alice')
// Returns all files mentioning Alice with context
// Update entity globally
await vfs.updateEntity(character.id, {
attributes: {
age: 26, // Birthday happened in the story
newTrait: 'experienced'
}
})
// Entity types
const entities = await vfs.listEntities({ type: 'character' })
// Supports: character, location, object, system, concept, etc.
```
### Entity Relationships
```javascript
// Link entities
await vfs.linkEntities('Alice', 'Ancient Tomb', 'explores')
await vfs.linkEntities('Alice', 'Bob', 'mentored_by')
// Query entity graph
const graph = await vfs.getEntityGraph('Alice', { depth: 2 })
// Returns connected entities and their relationships
```
## Concept System
Universal concepts that transcend individual files:
```javascript
// Create concept
const authConcept = await vfs.createConcept({
name: 'Authentication',
type: 'technical',
domain: 'security',
description: 'User identity verification system',
keywords: ['login', 'password', 'token', 'session'],
relatedConcepts: ['Authorization', 'Security']
})
// Concepts are automatically detected in files
await vfs.writeFile('/auth.js', 'function authenticate(user, password) {...}')
await vfs.writeFile('/login.tsx', 'const LoginForm = () => {...}')
// Find files by concept
const authFiles = await vfs.findByConcept('Authentication')
// Returns all files related to authentication concept
// Find files by concept
const authFiles = await vfs.findByConcept('Authentication')
// Returns all files related to the authentication concept
```
### Working with Concepts
```javascript
// Concepts can reference each other through their descriptions
// and keywords, creating an implicit network of related ideas.
// The findByConcept method searches across these relationships.
```
## GitBridge Integration
Seamlessly work with Git repositories:
```javascript
// Import from Git repo
await vfs.importFromGit('/local/git/repo', '/vfs/project')
// Imports:
// - All files and directories
// - Git history as VFS events
// - Commit messages as event metadata
// - Branch structure as relationships
// Export to Git format
await vfs.exportToGit('/vfs/project', '/local/git/repo')
// Exports:
// - Files to working directory
// - VFS events as git commits
// - Relationships as .brainy/relationships.json
// - Entities as .brainy/entities.json
// - Concepts as .brainy/concepts.json
// Export/import operations are available
// For remote sync, use git commands after export:
// await vfs.exportToGit('/vfs/project', '/local/repo')
// Then use git push/pull as normal
```
### Git Integration
```javascript
// Import from Git preserves history as events
// Export to Git creates .brainy/ metadata directory
// Use standard git commands for remote operations
```
## Knowledge Queries
Powerful queries across all Knowledge Layer data:
```javascript
// Timeline query
const timeline = await vfs.getTimeline({
from: '2025-01-01',
to: '2025-01-31',
types: ['write', 'create']
})
// Timeline queries
const timeline = await vfs.getTimeline({
from: '2025-01-01',
to: '2025-01-31',
types: ['write', 'create']
})
// Project statistics
const stats = await vfs.getProjectStats('/project')
console.log('Total files:', stats.fileCount)
console.log('Total size:', stats.totalSize)
console.log('Todo count:', stats.todoCount)
// Search with Triple Intelligence
const results = await vfs.search('authentication', {
path: '/src',
type: 'file',
limit: 20
})
```
## Background Processing
Knowledge Layer operations run in the background:
```javascript
// Operations are non-blocking
await vfs.writeFile('/large-doc.txt', hugeContent)
// Returns immediately
// Knowledge processing happens asynchronously:
// 1. Event recording (immediate)
// 2. Embedding generation (100ms)
// 3. Version checking (200ms)
// 4. Entity extraction (500ms)
// 5. Concept detection (1s)
// Background processing happens automatically
// Events are recorded immediately
// Embeddings and versions are processed asynchronously
```
## Search and Analysis
The Knowledge Layer provides powerful search and analysis capabilities:
```javascript
// Find files by concept
const authFiles = await vfs.findByConcept('Authentication')
// Returns all files related to the authentication concept
// Get timeline of changes
const timeline = await vfs.getTimeline({
from: '2025-01-01',
to: '2025-01-31',
types: ['write', 'create']
})
// Returns chronological list of events
// Get project statistics
const stats = await vfs.getProjectStats('/project')
console.log(stats.fileCount) // Number of files
console.log(stats.totalSize) // Total size in bytes
console.log(stats.todoCount) // Number of todos
console.log(stats.largestFile) // Largest file info
// Export directory to markdown
const markdown = await vfs.exportToMarkdown('/docs')
// Returns formatted markdown of entire directory structure
```
## Collaboration Features
Knowledge Layer enables multi-user collaboration:
```javascript
// Track user actions
vfs.setUser('alice')
await vfs.writeFile('/shared.txt', 'Alice\'s content')
vfs.setUser('bob')
await vfs.appendFile('/shared.txt', 'Bob\'s addition')
// Get collaboration history
const collabHistory = await vfs.getCollaborationHistory('/shared.txt')
// Returns who edited the file and when:
// [
// { user: 'alice', timestamp: Date, action: 'write', size: 15 },
// { user: 'bob', timestamp: Date, action: 'append', size: 14 }
// ]
// Get all todos across project
const allTodos = await vfs.getAllTodos('/project')
// Returns todos from all files recursively
```
## Performance Impact
Knowledge Layer overhead:
- **Write operations**: +50-200ms for event recording
- **Read operations**: No impact (cached)
- **Search operations**: 10x faster (pre-computed embeddings)
- **Storage**: ~20% additional for events and embeddings
- **Memory**: +100MB for caches and indexes
## Configuration
Fine-tune Knowledge Layer behavior:
```javascript
await vfs.enableKnowledgeLayer({
eventRecording: true, // Track all operations
semanticVersioning: true, // Smart versioning
versionThreshold: 0.7, // Similarity threshold
persistentEntities: true, // Track entities
entityTypes: ['character', 'location', 'system'],
concepts: true, // Universal concepts
conceptDomains: ['technical', 'narrative', 'business'],
gitBridge: true, // Git integration
backgroundProcessing: true, // Non-blocking
processingDelay: 100, // Ms before processing
cacheSizes: {
events: 10000,
versions: 1000,
entities: 5000,
concepts: 2000
}
})
```
## Complete Example
```javascript
import { Brainy } from '@soulcraft/brainy'
async function knowledgeExample() {
// Initialize with Knowledge Layer
const brain = new Brainy({
storage: { type: 'memory' }
})
await brain.init()
const vfs = brain.vfs()
await vfs.init()
await vfs.enableKnowledgeLayer()
// Create a story with tracked entities
const alice = await vfs.createEntity({
name: 'Alice',
type: 'character',
description: 'Protagonist'
})
await vfs.writeFile('/chapter1.md', `
# Chapter 1
Alice discovered the ancient artifact...
`)
// File automatically:
// - Records write event
// - Generates embedding
// - Links to Alice entity
// - Detects "ancient artifact" concept
// Create technical documentation
await vfs.createConcept({
name: 'API Design',
type: 'technical',
domain: 'software'
})
await vfs.writeFile('/api-guide.md', `
# API Design Guide
RESTful principles...
`)
// Check Knowledge Layer insights
const insights = await vfs.getInsights('/')
console.log('Entities:', insights.entities)
console.log('Concepts:', insights.concepts)
console.log('Relationships:', insights.relationships)
// Query across knowledge
const results = await vfs.knowledgeSearch({
query: 'Alice artifact',
includeEvents: true,
includeEntities: true
})
await vfs.close()
await brain.close()
}
```
The Knowledge Layer transforms VFS from a filesystem into an intelligent knowledge management system that understands content, tracks evolution, and enables semantic collaboration.