diff --git a/CLAUDE.md b/CLAUDE.md
index 16ce671..9d106b1 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -333,9 +333,122 @@ const onSubmit = form.handleSubmit(async (values) => {
 <Button :disabled="!isFormValid">Submit</Button>
 ```
 
+### **Module Development Best Practices**
+
+**Module Structure Requirements:**
+1. **Independence**: Modules must be independent of each other - no direct imports between modules
+2. **Base Dependency**: All modules should depend on 'base' module for core infrastructure
+3. **Service Pattern**: All services should extend `BaseService` for standardized initialization
+4. **API Isolation**: Module-specific API calls must be in the module's services folder
+5. **Dependency Injection**: Cross-module communication only through DI container
+
+**Required Module Structure:**
+```
+src/modules/[module-name]/
+├── index.ts                 # Module plugin definition (REQUIRED)
+├── components/              # Module-specific components
+├── composables/             # Module composables (use DI for services)
+├── services/                # Module services (extend BaseService)
+│   ├── [module]Service.ts  # Core module service
+│   └── [module]API.ts       # LNbits API integration
+├── stores/                  # Module-specific Pinia stores
+├── types/                   # Module type definitions
+└── views/                   # Module pages/views
+```
+
+**Service Implementation Pattern:**
+```typescript
+// Always extend BaseService for services
+export class MyModuleService extends BaseService {
+  protected readonly metadata = {
+    name: 'MyModuleService',
+    version: '1.0.0',
+    dependencies: [] // List service dependencies
+  }
+
+  protected async onInitialize(): Promise<void> {
+    // Service-specific initialization
+  }
+}
+
+// API services for LNbits integration
+export class MyModuleAPI extends BaseService {
+  private baseUrl: string
+  
+  constructor() {
+    super()
+    const config = appConfig.modules.myModule.config
+    this.baseUrl = config.apiConfig.baseUrl
+  }
+  
+  // API methods here
+}
+```
+
+**Module Plugin Pattern:**
+```typescript
+export const myModule: ModulePlugin = {
+  name: 'my-module',
+  version: '1.0.0',
+  dependencies: ['base'], // Always depend on base
+  
+  async install(app: App, options?: { config?: MyModuleConfig }) {
+    // 1. Create service instances
+    const myService = new MyModuleService()
+    const myAPI = new MyModuleAPI()
+    
+    // 2. Register in DI container
+    container.provide(SERVICE_TOKENS.MY_SERVICE, myService)
+    container.provide(SERVICE_TOKENS.MY_API, myAPI)
+    
+    // 3. Initialize services
+    await myService.initialize({
+      waitForDependencies: true,
+      maxRetries: 3
+    })
+    
+    // 4. Register components if needed
+    app.component('MyComponent', MyComponent)
+  }
+}
+```
+
+**Nostr Integration Rules:**
+1. **NEVER create separate relay connections** - always use the central RelayHub
+2. **Access RelayHub through DI**: `const relayHub = injectService(SERVICE_TOKENS.RELAY_HUB)`
+3. **Use RelayHub methods** for all Nostr operations (subscribe, publish, etc.)
+4. **Event kinds** should be module-specific and follow NIP specifications
+
+**LNbits API Integration:**
+1. **Create module-specific API service** in `services/[module]API.ts`
+2. **Extend BaseService** for automatic dependency management
+3. **Use authentication headers**: `X-Api-Key: walletKey`
+4. **Base URL from config**: Use `appConfig.modules.[module].config.apiConfig.baseUrl`
+5. **Error handling**: Implement proper error handling with user feedback
+
+**Composables Best Practices:**
+```typescript
+export function useMyModule() {
+  // Always use DI for services
+  const relayHub = injectService(SERVICE_TOKENS.RELAY_HUB)
+  const authService = injectService(SERVICE_TOKENS.AUTH_SERVICE)
+  const myAPI = injectService(SERVICE_TOKENS.MY_API)
+  
+  // Never import services directly
+  // ❌ import { relayHub } from '@/modules/base/nostr/relay-hub'
+  // ✅ const relayHub = injectService(SERVICE_TOKENS.RELAY_HUB)
+}
+```
+
+**WebSocket & Visibility Management:**
+- Services with WebSocket connections MUST integrate with VisibilityService
+- Register visibility callbacks: `this.visibilityService.registerService(name, onResume, onPause)`
+- Handle connection recovery in `onResume()` callback
+- Implement battery-conscious pausing in `onPause()` callback
+
 ### **Code Conventions:**
 - Use TypeScript interfaces over types for extendability
-- Prefer functional and declarative patterns over classes
+- Prefer functional and declarative patterns over classes (except for services)
 - Use Vue Composition API with `<script setup>` syntax
 - Follow naming convention: lowercase-with-dashes for directories
 - Leverage VueUse functions for enhanced reactivity
@@ -343,6 +456,8 @@ const onSubmit = form.handleSubmit(async (values) => {
 - Optimize images using WebP format with lazy loading
 - **ALWAYS use dependency injection for cross-module service access**
 - **ALWAYS use Shadcn Form components for all form implementations**
+- **ALWAYS extend BaseService for module services**
+- **NEVER create direct dependencies between modules**
 
 **Build Configuration:**
 - Vite config includes PWA, image optimization, and bundle analysis