TypeScript Definition Finder MCP Server

Name: TypeScript Definition Finder MCP Server
Author: runninghare

@runninghare

Repository

About TypeScript Definition Finder MCP Server

A Model Context Protocol (MCP) server that helps AI code editors find TypeScript symbol definitions in your codebase.

Basic information

Config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "ts-def-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@smithery/cli",
        "install",
        "@runninghare/ts-def-mcp",
        "--client",
        "claude"
      ]
    }
  }
}

Tools

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Overview

What is TypeScript Definition Finder MCP Server?

An MCP server that helps AI code editors locate the original definition of TypeScript symbols in a codebase, including imported symbols from external packages.

How to use TypeScript Definition Finder MCP Server?

Install via Smithery (npx -y @smithery/cli install @runninghare/ts-def-mcp --client claude) or manually with bun install and bun run build. Start the server with node dist/run.js. Use the tool find_typescript_definition (trigger /ts-def) with parameters file_path, line_content, and column_number.

Key features of TypeScript Definition Finder MCP Server

Finds original definitions of TypeScript symbols
Works with imported symbols from external packages
Returns both the definition location and code snippet
Supports stdio interface for AI code editor integration
Trigger command /ts-def available in Cursor

Use cases of TypeScript Definition Finder MCP Server

Locating the original definition of an imported symbol in a TypeScript project
Finding where a class, interface, or function is defined in the local codebase
Assisting AI code editors to navigate to symbol definitions during code generation or refactoring