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Xutaotaotao

mcp-get-installed-apps

by Xutaotaotao
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TypeScript
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Get Installed Apps MCP Server

A Model Context Protocol (MCP) server that provides information about installed applications on your computer, support MacOS and Windows.

Project Introduction

Get Installed Apps MCP Server is a simple MCP implementation that allows AI assistants to discover which applications are installed on your computer. This server implements the Model Context Protocol (MCP) specification, enabling seamless integration with compatible AI clients.

Related MCP server: XcodeBuildMCP

Features

  • Returns a comprehensive list of installed applications on your computer

  • Simple integration with any MCP-compatible AI client

  • Lightweight implementation with minimal dependencies

Project Structure

mcp-get-installed-apps
├── src
│   ├── index.ts               # Application entry point
├── tsconfig.json              # TypeScript configuration file
├── package.json               # npm configuration file
└── README.md                  # Project documentation

Installation

git clone https://github.com/Xutaotaotao/mcp-get-installed-apps.git
cd git-mcp-server
npm install
npm run build

MCP Configuration

After installation, you can configure Get Installed Apps MCP in your MCP JSON configuration:

{
    "mcpServers": {
        "get-installed-apps": {
            "command": "node",
            "args": [
                "mcp-get-installed-apps/build/index.js"
            ]
        }
    }
}

Configure the MCP JSON in the AI Client

MCP Tool Description

Get Installed Apps MCP Server provides the following tool, which can be called through the MCP protocol:

Get Installed Apps (get-installed-apps)

Returns a list of all installed applications on your computer.

Parameters:

  • None

Returns:

  • Success: Text content containing JSON data of all installed applications

  • Failure: Text content containing error information

Available Tools

1 tool
get-installed-appsB

Get my computer's installed apps

ParametersJSON Schema
NameRequiredDescriptionDefault

No parameters

TDQS

B3.1/5.0
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries the full burden of behavioral disclosure. It mentions 'Get' which implies a read operation, but fails to describe critical traits like whether this requires permissions, what format the output is in, if it's paginated, or any rate limits. For a tool with zero annotation coverage, this is inadequate.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single, efficient sentence with no wasted words. It is front-loaded with the core purpose, making it easy for an AI agent to quickly understand the tool's function without unnecessary elaboration.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the lack of annotations and output schema, the description is incomplete. It does not explain what the return values are (e.g., list format, data structure) or address behavioral aspects like permissions or errors. For a tool that retrieves system data, this leaves significant gaps in understanding.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The tool has 0 parameters with 100% schema description coverage, so the schema fully documents the inputs. The description does not need to add parameter information, and it appropriately avoids redundancy. A baseline of 4 is applied since no parameters exist, and the description does not introduce confusion.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description 'Get my computer's installed apps' clearly states the action (get) and resource (installed apps) with a specific scope (my computer). It's not tautological with the tool name 'get-installed-apps' and provides a meaningful purpose. However, without sibling tools, the differentiation aspect is not applicable, preventing a perfect score.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides no guidance on when to use this tool, such as prerequisites, alternatives, or exclusions. It simply states what the tool does without context for usage, which is a significant gap in helping an AI agent make informed decisions.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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TDQS

B3.2/5.0
Disambiguation5/5

With only one tool, there is no possibility of ambiguity or overlap between tools. The tool's purpose is clearly defined as retrieving installed apps from the computer, making it distinct by default.

Naming Consistency5/5

Since there is only one tool, naming consistency is inherently perfect. The tool name 'get-installed-apps' follows a clear verb-noun pattern, and there are no other tools to compare it against for inconsistency.

Tool Count2/5

A single tool is too few for most server purposes, as it limits functionality and suggests a thin or incomplete surface. While it might be appropriate for a very narrow scope, it generally feels insufficient for typical agent workflows.

Completeness2/5

The server's domain appears to be managing installed apps, but with only a 'get' operation, there are significant gaps. Missing operations like install, uninstall, update, or search apps make the surface incomplete and likely to cause agent failures for broader tasks.

Maintenance

ActivityInactive
ResponsivenessNo issues

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