MCP Desktop Alert Emitter

A Model Context Protocol (MCP) service engineered to furnish native desktop notification functionalities leveraging the node-notifier library.

Core Capabilities

• Utility for straightforward notification issuance
• Enhanced notification apparatus incorporating supplementary parameters
• Compatibility with varied alert classifications (info, success, warning, error)
• User-definable configuration parameters for alerts

Supported Environments

This MCP host relies on node-notifier and functions universally on: - macOS: Leverages the built-in Notification Center - Windows: Utilizes Windows Toast Notifications (for Win 8 and newer) or taskbar pop-ups (pre-Win 8) - Linux: Executes the notify-send utility for standard Gnome/Ubuntu desktop alerts

Refer to the node-notifier documentation for specifics on platform-specific execution behaviors.

Operational Modalities

Interaction with the MCP Alert Emitter can be established in two primary fashions:

Method 1: Direct execution via npx

The most immediate approach involves utilizing npx:

# Execute the package directly
npx @uehaj/mcp-notifier

This command retrieves and runs the package instantaneously.

Method 2: Source checkout and build process

# Obtain repository copy
git clone https://github.com/uehaj/mcp-notifier.git
cd mcp-notifier

# Install prerequisites
npm install

# Compile project assets
npm run build

# Initiate the server process
node build/index.js

Integration within Claude Desktop Environment

1. Modify the Claude Desktop configuration file:
2. macOS: ~/Library/Application Support/Claude/claude_desktop_config.json

3. Windows: %APPDATA%\Claude\claude_desktop_config.json

4. Select one of the subsequent configuration schemes:

For npx invocation (Recommended path):

{
  "mcpServers": {
    "mcp-desktop-alert-emitter": {
      "command": "npx",
      "args": [
        "@uehaj/mcp-notifier"
      ]
    }
  }
}

For local source checkout method:

{
  "mcpServers": {
    "mcp-desktop-alert-emitter": {
      "command": "node",
      "args": [
        "/absolute/path/to/cloned/mcp-notifier/build/index.js"
      ]
    }
  }
}

1. Restart the Claude Desktop application.

Smithery Connectivity

This service is registered within Smithery. Due to its fundamental reliance on local workstation access for proper operation, it must be instantiated locally rather than utilized as a remote, hosted entity.

Execution via Smithery Command Line Interface:

# Invoke using the Smithery CLI
npx @smithery/cli run @uehaj/mcp-notifier

Manual Configuration from Source Repository:

Adhere to the procedures outlined in the "Source checkout and build process" section above.

Exposed Utilities

emit-basic-alert

Fundamental alerting function accepting the following arguments:

• title: The display heading for the notification (mandatory)
• message: The primary content text of the alert (mandatory)
• icon: Optional URI or file path to a custom icon graphic
• sound: Boolean flag indicating whether an audible alert should play (optional)
• wait: Boolean flag dictating if the execution flow should halt until dismissal (optional)

emit-advanced-alert

Sophisticated alerting function offering expanded parameters:

• title: The notification heading (mandatory)
• message: The core notification payload (mandatory)
• type: Categorization of the alert: "info", "success", "warning", or "error" (optional)
• timeout: Duration in milliseconds before automatic dismissal (optional)
• closeLabel: Text displayed on the dismissal control (macOS specific, optional)
• actions: A sequence defining supplementary interactive button labels (macOS specific, optional)

Verification Procedures

To execute automated checks:

# For npx invocation method
npx @modelcontextprotocol/inspector npx @uehaj/mcp-notifier

# For local source compilation method
cd mcp-notifier
npx @modelcontextprotocol/inspector node build/index.js

Development Workflow

Publication to npm Registry

The package incorporates several npm lifecycle scripts to streamline publication tasks:

# Deploy the currently defined version
npm run release

# Advance patch version (e.g., 1.0.0 -> 1.0.1) and deploy
npm run release:patch

# Advance minor version (e.g., 1.0.0 -> 1.1.0) and deploy
npm run release:minor

# Advance major version (e.g., 1.0.0 -> 2.0.0) and deploy
npm run release:major

These commands will sequentially perform the following actions: 1. Automatically execute the necessary compilation routine 2. Update the semantic version identifier as required 3. Submit the resulting package to npm under public visibility

You must be authenticated via npm login prior to executing any release scripts.

Prerequisites

• Node.js environment, version 18 or newer
• npm package manager, version 6 or newer
• An active graphical desktop environment (Windows, macOS, or Linux)
• Necessary operational permissions for system alerting services

Governing License

MIT

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