一个模型上下文协议（MCP）服务器，提供代码编辑的语言支持。

这是一个基于TypeScript的MCP服务器，旨在通过提供悬停信息、代码补全和诊断等功能，提升代码编辑体验。它通过提供以下内容演示MCP的核心概念：

• 针对代码分析和操作的专用语言工具
• 与模型上下文协议集成，实现无缝通信

特色

语言支持

• 为代码中的符号提供悬停信息
• 提供代码补全建议
• 报告诊断信息（错误、警告）
• 仅用 TypeScript 测试，理论上应该支持 Python。如果可能的话，我很想增加额外的语言服务器，或者更中立一些。

MCP集成

• 实现与客户端通信的MCP协议
• 以MCP工具形式展示语言特性

工具

• get_hover：获取文档中位置的悬停信息
• 将 languageId、filePath、内容、行和字符作为必要参数
• get_completions：获取文档中职位的完成建议
• 将 languageId、filePath、内容、行和字符作为必要参数

language-server-mcp MCP Server

A Model Context Protocol (MCP) server providing language support for code editing.

This is a TypeScript-based MCP server designed to enhance code editing experiences by providing features such as hover information, code completion, and diagnostics. It demonstrates core MCP concepts by providing:

• Language-specific tools for code analysis and manipulation
• Integration with the Model Context Protocol for seamless communication

Features

Language Support

• Provides hover information for symbols in code
• Offers code completion suggestions
• Reports diagnostic information (errors, warnings)
• Only tested with typescript, theoretically should support Python. Would love to add additional language servers or be more agnostic if possible.

MCP Integration

• Implements the MCP protocol for communication with clients
• Exposes language features as MCP tools

Tools

• get_hover: Get hover information for a position in a document
  • Takes languageId, filePath, content, line, and character as required parameters
• get_completions: Get completion suggestions for a position in a document
  • Takes languageId, filePath, content, line, and character as required parameters
• get_diagnostics: Get diagnostic information for a document
  • Takes languageId, filePath, and content as required parameters

Development

Install dependencies:

npm install

Build the server:

npm run build

For development with auto-rebuild:

npm run watch

Installation

To use with Claude Desktop, add the server config:

On MacOS: ~/Library/Application Support/Claude/claude_desktop_config.json On Windows: %APPDATA%/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "language-server-mcp": {
      "command": "/path/to/language-server-mcp/build/index.js"
    }
  }
}

Debugging

Since MCP servers communicate over stdio, debugging can be challenging. We recommend using the MCP Inspector, which is available as a package script:

npm run inspector

The Inspector will provide a URL to access debugging tools in your browser.