MCP Service Baseline Template

This artifact presents a rudimentary implementation of a Model Context Protocol (MCP) service engine, designed to illustrate core operational features, including accessible tools and defined resources.

Implementation Sequence

1. Project Initialization (Execute in your desired directory via PowerShell or Command Prompt): bash uv init mcp-server-basic cd mcp-server-basic

2. Virtual Environment Configuration and Activation bash uv venv .venv\Scripts\activate

3. Dependency Acquisition: bash uv add "mcp[cli]"

or alternatively: bash uv add -r requirements.txt

Functional Components

The service exposes the following capabilities:

Utility Functions (Tools)

• add(a: int, b: int): Computes the sum of two integral inputs.
• subtract(a: int, b: int): Derives the difference when the second integer is subtracted from the first.

Data Endpoints (Resources)

• greeting://{name}: Yields a personalized introductory phrase targeted to the supplied identifier.

Service Execution Instructions

To launch the server integrated with the MCP Inspector for debugging purposes: bash uv run mcp dev main.py

For standard, production-like execution: bash uv run mcp run

To register the service within the Claude desktop environment: bash uv run mcp install main.py

VS Code Integration for MCP Development

• Load the project folder (/mcp-server-basic) into Visual Studio Code.

• Open an integrated terminal and execute: bash uv run main.py

• Initiate the chat interface via the key combination Cntrl+Shift+I.

• Authenticate using your GitHub credentials and complete the initial setup.
• Apply the MCP configuration settings to VS Code (two primary methods exist for user settings):

GreetingsFromMCP

WIKIPEDIA: XMLHttpRequest (XHR) represents an Application Programming Interface structured as a JavaScript object, whose methods facilitate the transmission of Hypertext Transfer Protocol (HTTP) queries from a web browser context to a backend web server. These methods enable an application running within the browser to dispatch requests to the server subsequent to the initial page load completion, and subsequently retrieve data. XMLHttpRequest is integral to the paradigm known as Ajax programming. Prior to Ajax, the principal means of server interaction involved hyperlink navigation and form submissions, actions that typically resulted in the replacement of the current rendered page with a new one.

== Provenance == The foundational concept underpinning XMLHttpRequest was conceptualized in 2000 by the engineering team responsible for Microsoft Outlook. This concept was subsequently realized within the Internet Explorer 5 browser iteration (released in 1999). Nevertheless, the initial syntax did not employ the standardized XMLHttpRequest identifier. Instead, developers utilized the constructor calls ActiveXObject("Msxml2.XMLHTTP") and ActiveXObject("Microsoft.XMLHTTP"). By the time Internet Explorer 7 was released (2006), universal browser support for the XMLHttpRequest designator was achieved. The XMLHttpRequest designator has since become the prevalent standard across all primary browser platforms, encompassing Mozilla's Gecko rendering engine (2002), Safari version 1.2 (2004), and Opera version 8.0 (2005).

=== Formal Specification === The World Wide Web Consortium (W3C) promulgated a Working Draft specification pertaining to the XMLHttpRequest object on April 5, 2006. On February 25, 2008, the W3C issued the Level 2 specification Working Draft. This Level 2 iteration augmented the original with mechanisms for tracking request progress events, enabling cross-origin communication, and managing binary data streams. By the conclusion of 2011, the Level 2 specifics had been integrated into the primary specification document. In the latter part of 2012, development stewardship transitioned to the WHATWG, which maintains a perpetually evolving document utilizing Web IDL notation.

== Operational Procedure == Generally, dispatching a query utilizing XMLHttpRequest necessitates adherence to several distinct programmatic phases.

1. Instantiation: Create an XMLHttpRequest object instance via a constructor invocation:
2. Configuration: Invoking the "open" method to designate the request method type, identify the target endpoint URI, and stipulate whether the operation will proceed synchronously or asynchronously:
3. Listener Setup (Asynchronous): For non-blocking requests, define a handler function that executes upon state transitions of the request object:
4. Transmission: Initiate the transmission sequence by calling the "send" method, potentially including payload data:
5. Response Handling: Monitor state changes within the assigned event handler. If the server delivers response data, it is, by default, accumulated in the "responseText" attribute. Upon cessation of response processing, the object transitions to state 4, signifying the "completed" status. Beyond these fundamental steps, XMLHttpRequest offers extensive parameters for fine-grained control over request dispatch and response ingestion. Custom header fields can be prepended to the request to convey server expectations, and data can be uploaded during the "send" call. The received response payload can be deserialized from JSON format directly into a usable JavaScript object structure, or processed incrementally as segments arrive, obviating the wait for the complete textual content. Furthermore, the request can be terminated prematurely or configured with a timeout threshold.