CHECKPOINT: Brainy 2.0 API refactor - pre-fixes state

Current state: - Unified augmentation system to BrainyAugmentation interface - Changed methods to specific noun/verb naming (addNoun, getNoun, etc) - Made old methods private - Combined getNouns into single unified method - Neural API exists and is complete - Triple Intelligence uses correct Brainy operators (not MongoDB) Issues identified: - Documentation incorrectly shows MongoDB operators (code is correct) - Need to ensure all features are properly exposed - Need to verify nothing was lost in simplification This commit serves as a rollback point before applying fixes.
2025-08-25 09:52:32 -07:00 · 2025-08-25 09:52:32 -07:00 · 26c7d61185
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+# Creating Augmentations for Brainy
+
+## The BrainyAugmentation Interface
+
+Every augmentation implements this simple yet powerful interface:
+
+```typescript
+interface BrainyAugmentation {
+  // Identification
+  name: string                    // Unique name for your augmentation
+  
+  // Execution control
+  timing: 'before' | 'after' | 'around' | 'replace'  // When to execute
+  operations: string[]            // Which operations to intercept
+  priority: number                 // Execution order (higher = first)
+  
+  // Lifecycle methods
+  initialize(context: AugmentationContext): Promise<void>
+  execute<T>(operation: string, params: any, next: () => Promise<T>): Promise<T>
+  shutdown?(): Promise<void>      // Optional cleanup
+}
+```
+
+## Creating a Storage Augmentation
+
+Storage augmentations are special - they provide the storage backend for Brainy:
+
+```typescript
+import { StorageAugmentation } from 'brainy/augmentations'
+import { MyCustomStorage } from './my-storage'
+
+export class MyStorageAugmentation extends StorageAugmentation {
+  private config: MyStorageConfig
+  
+  constructor(config: MyStorageConfig) {
+    super()
+    this.name = 'my-custom-storage'
+    this.config = config
+  }
+  
+  // Called during storage resolution phase
+  async provideStorage(): Promise<StorageAdapter> {
+    const storage = new MyCustomStorage(this.config)
+    this.storageAdapter = storage
+    return storage
+  }
+  
+  // Called during augmentation initialization
+  protected async onInitialize(): Promise<void> {
+    await this.storageAdapter!.init()
+    this.log(`Custom storage initialized`)
+  }
+}
+```
+
+### Using Your Storage Augmentation
+
+```typescript
+// Register before brain.init()
+const brain = new BrainyData()
+brain.augmentations.register(new MyStorageAugmentation({
+  connectionString: 'redis://localhost:6379'
+}))
+await brain.init()  // Will use your storage!
+```
+
+## Creating a Feature Augmentation
+
+Here's a complete example of a caching augmentation:
+
+```typescript
+import { BaseAugmentation, BrainyAugmentation } from 'brainy/augmentations'
+
+export class CachingAugmentation extends BaseAugmentation {
+  private cache = new Map<string, any>()
+  
+  constructor() {
+    super()
+    this.name = 'smart-cache'
+    this.timing = 'around'        // Wrap operations
+    this.operations = ['search']   // Only cache searches
+    this.priority = 50             // Mid-priority
+  }
+  
+  async execute<T>(operation: string, params: any, next: () => Promise<T>): Promise<T> {
+    if (operation === 'search') {
+      // Check cache
+      const cacheKey = JSON.stringify(params)
+      if (this.cache.has(cacheKey)) {
+        this.log('Cache hit!')
+        return this.cache.get(cacheKey)
+      }
+      
+      // Execute and cache
+      const result = await next()
+      this.cache.set(cacheKey, result)
+      return result
+    }
+    
+    // Pass through other operations
+    return next()
+  }
+  
+  protected async onInitialize(): Promise<void> {
+    this.log('Cache initialized')
+  }
+  
+  async shutdown(): Promise<void> {
+    this.cache.clear()
+    await super.shutdown()
+  }
+}
+```
+
+## The Four Timing Modes
+
+### 1. `before` - Pre-processing
+```typescript
+timing = 'before'
+async execute(op, params, next) {
+  // Validate/transform input
+  const validated = await validate(params)
+  return next(validated)  // Pass modified params
+}
+```
+
+### 2. `after` - Post-processing  
+```typescript
+timing = 'after'
+async execute(op, params, next) {
+  const result = await next()
+  // Log, analyze, or modify result
+  console.log(`Operation ${op} returned:`, result)
+  return result
+}
+```
+
+### 3. `around` - Wrapping (middleware)
+```typescript
+timing = 'around'
+async execute(op, params, next) {
+  console.log('Starting', op)
+  try {
+    const result = await next()
+    console.log('Success', op)
+    return result
+  } catch (error) {
+    console.log('Failed', op, error)
+    throw error
+  }
+}
+```
+
+### 4. `replace` - Complete replacement
+```typescript
+timing = 'replace'
+async execute(op, params, next) {
+  // Don't call next() - replace entirely!
+  return myCustomImplementation(params)
+}
+```
+
+## Operations You Can Intercept
+
+Common operations in Brainy:
+- `'storage'` - Storage resolution (special)
+- `'add'`, `'addNoun'` - Adding data
+- `'search'`, `'similar'` - Searching
+- `'update'`, `'delete'` - Modifications
+- `'saveNoun'`, `'saveVerb'` - Storage operations
+- `'all'` - Intercept everything
+
+## Context Available to Augmentations
+
+```typescript
+interface AugmentationContext {
+  brain: BrainyData         // The brain instance
+  storage: StorageAdapter   // Storage backend
+  config: BrainyDataConfig  // Configuration
+  log: (message: string, level?: 'info' | 'warn' | 'error') => void
+}
+```
+
+## Real-World Examples
+
+### 1. Redis Storage Augmentation
+```typescript
+export class RedisStorageAugmentation extends StorageAugmentation {
+  async provideStorage(): Promise<StorageAdapter> {
+    return new RedisAdapter({
+      host: 'localhost',
+      port: 6379,
+      // Implement full StorageAdapter interface
+    })
+  }
+}
+```
+
+### 2. Audit Trail Augmentation
+```typescript
+export class AuditAugmentation extends BaseAugmentation {
+  timing = 'after'
+  operations = ['add', 'update', 'delete']
+  
+  async execute(op, params, next) {
+    const result = await next()
+    
+    // Log to audit trail
+    await this.logAudit({
+      operation: op,
+      params,
+      result,
+      timestamp: new Date(),
+      user: this.context.config.currentUser
+    })
+    
+    return result
+  }
+}
+```
+
+### 3. Rate Limiting Augmentation
+```typescript
+export class RateLimitAugmentation extends BaseAugmentation {
+  timing = 'before'
+  operations = ['search']
+  private limiter = new RateLimiter({ rps: 100 })
+  
+  async execute(op, params, next) {
+    await this.limiter.acquire()  // Wait if rate limited
+    return next()
+  }
+}
+```
+
+## Publishing to Brain Cloud Marketplace
+
+Future capability for premium augmentations:
+
+```typescript
+// package.json
+{
+  "name": "@brain-cloud/redis-storage",
+  "brainy": {
+    "type": "augmentation",
+    "category": "storage",
+    "premium": true
+  }
+}
+
+// Users can install via:
+// brainy augment install redis-storage
+```
+
+## Best Practices
+
+1. **Use BaseAugmentation** - Provides common functionality
+2. **Set appropriate priority** - Storage (100), System (80-99), Features (10-50)
+3. **Be selective with operations** - Don't use 'all' unless necessary
+4. **Handle errors gracefully** - Don't break the chain
+5. **Clean up in shutdown()** - Release resources
+6. **Log appropriately** - Use context.log() for consistent output
+7. **Document your augmentation** - Include examples
+
+## Testing Your Augmentation
+
+```typescript
+import { BrainyData } from 'brainy'
+import { MyAugmentation } from './my-augmentation'
+
+describe('MyAugmentation', () => {
+  let brain: BrainyData
+  
+  beforeEach(async () => {
+    brain = new BrainyData()
+    brain.augmentations.register(new MyAugmentation())
+    await brain.init()
+  })
+  
+  afterEach(async () => {
+    await brain.destroy()
+  })
+  
+  it('should enhance searches', async () => {
+    // Test your augmentation's effect
+    const results = await brain.search('test')
+    expect(results).toHaveProperty('enhanced', true)
+  })
+})
+```
+
+## Summary
+
+Augmentations are Brainy's extension system. They can:
+- Replace storage backends
+- Add caching layers
+- Implement audit trails
+- Add rate limiting
+- Sync with external systems
+- Transform data
+- And much more!
+
+The unified BrainyAugmentation interface makes it easy to create powerful extensions while maintaining consistency across the entire system.