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# Apple Notifier MCP Server

## Overview
This MCP server will provide tools to send notifications on Apple devices using the `osascript` command. The server will expose a simple interface to display notifications with customizable titles, messages, and sound options.

## Project Structure
```
apple-notifier-mcp/
├── package.json
├── tsconfig.json
├── src/
│   ├── index.ts              # Main MCP server implementation
│   ├── notifier.ts           # Core notification functionality
│   └── types.ts              # Type definitions
├── tests/                    # Test files
│   └── notifier.test.ts
└── examples/                 # Example usage
    └── demo.ts
```

## Dependencies
- `@modelcontextprotocol/sdk` - Core MCP SDK
- `typescript` - For type safety and better development experience
- No external dependencies needed for notifications as we'll use native `osascript`

## Implementation Details

### MCP Server Tools
The server will expose the following tools:

1. `send_notification`
   - Parameters:
     - title (required): string - Notification title
     - message (required): string - Notification message
     - subtitle (optional): string - Notification subtitle
     - sound (optional): boolean - Play default notification sound (default: true)

### Core Notification Implementation
We'll use the `osascript` command with AppleScript to send notifications:

```applescript
display notification "message" with title "title" subtitle "subtitle" sound name "default"
```

The notifier module will handle:
- Parameter validation
- Escaping special characters
- Command execution
- Error handling

### Error Handling
The server will handle common error scenarios:
- Invalid parameters
- System command failures
- Permission issues
- Resource constraints

## Example Usage

```typescript
// Using the MCP tool
const result = await mcp.use_tool('apple-notifier', 'send_notification', {
  title: 'Hello',
  message: 'This is a test notification',
  subtitle: 'Optional subtitle',
  sound: true
});
```

## Testing Strategy

1. Unit Tests
   - Parameter validation
   - Command string generation
   - Error handling

2. Integration Tests
   - End-to-end notification sending
   - MCP tool interface
   - Error scenarios

3. Manual Testing
   - Visual verification of notifications
   - Sound testing
   - Different parameter combinations

## Implementation Steps

1. Project Setup
   - Initialize npm project
   - Configure TypeScript
   - Set up development environment

2. Core Implementation
   - Create notifier module
   - Implement command generation
   - Add error handling

3. MCP Server
   - Implement server class
   - Add tool definitions
   - Set up request handlers

4. Testing
   - Write unit tests
   - Add integration tests
   - Perform manual testing

5. Documentation
   - Add JSDoc comments
   - Create usage examples
   - Document error scenarios

## Future Enhancements
- Support for custom notification sounds
- Rich notifications with images
- Scheduled notifications
- Notification center integration
- Support for notification actions