Skip to content

jsts-upgrade-assistant

AI-powered tool for automatically upgrading npm packages in TypeScript projects and resolving compiler errors

8,727
Weekly Downloads
build.protocol_tooling.mcp#typescript#javascript#upgrade#tool#ai#npm#packages#mcp#model-context-protocol

Install jsts-upgrade-assistant in your MCP client

jsts-upgrade-assistant is a Model Context Protocol server. Add it to your MCP client config once, restart, and the server's tools become available to your AI assistant. The same JSON snippet below works across all four major clients — only the config file path differs.

  1. Locate your client's MCP config file.
    • Cursor: ~/.cursor/mcp.json
    • Claude Desktop (macOS): ~/Library/Application Support/Claude/claude_desktop_config.json
    • Claude Desktop (Windows): %APPDATA%\Claude\claude_desktop_config.json
    • VS Code: Settings → Extensions → MCP
    • Windsurf: Settings → MCP Servers
  2. Add jsts-upgrade-assistant to the mcpServers map — paste the snippet below into your config file. If you already have other MCP servers, merge the entry into the existing mcpServers object.
  3. Restart your client so it picks up the new server.
  4. Verify — ask the assistant to list available tools; jsts-upgrade-assistant's tools should appear.
{
  "mcpServers": {
    "jsts-upgrade-assistant": {
      "command": "npx",
      "args": [
        "-y",
        "@microsoft/jsts-upgrade-assistant"
      ]
    }
  }
}

Install jsts-upgrade-assistant in Cursor

Open ~/.cursor/mcp.json in your editor, paste the snippet above into mcpServers, save, and restart Cursor. jsts-upgrade-assistant will show up in the assistant's tool list on next launch.

Install jsts-upgrade-assistant in Claude Desktop (macOS)

Open ~/Library/Application Support/Claude/claude_desktop_config.json in your editor, paste the snippet above into mcpServers, save, and restart Claude Desktop (macOS). jsts-upgrade-assistant will show up in the assistant's tool list on next launch.

Install jsts-upgrade-assistant in Claude Desktop (Windows)

Open %APPDATA%\Claude\claude_desktop_config.json in your editor, paste the snippet above into mcpServers, save, and restart Claude Desktop (Windows). jsts-upgrade-assistant will show up in the assistant's tool list on next launch.

Install jsts-upgrade-assistant in VS Code

Open Settings → Extensions → MCP in your editor, paste the snippet above into mcpServers, save, and restart VS Code. jsts-upgrade-assistant will show up in the assistant's tool list on next launch.

npm package: @microsoft/jsts-upgrade-assistant

Transport

jsts-upgrade-assistant supports the following MCP transports. Most AI clients use stdio by default for locally-installed servers.

stdio

From the jsts-upgrade-assistant README

# @microsoft/jsts-upgrade-assistant A modernization tool that helps developers upgrade their TypeScript npm dependencies and TypeScript compiler version. The package ships an MCP (Model Context Protocol) server plus a set of [Agent Skills](https://docs.anthropic.com/en/docs/agents/skills) that orchestrate the upgrade workflow end-to-end. ## Installation ```bash # Install globally npm install -g @microsoft/jsts-upgrade-assistant # Or install locally in your project npm install --save-dev @microsoft/jsts-upgrade-assistant ``` The package will automatically download the correct platform-specific binary for your system. ### Supported Platforms - Windows x64 (Intel/AMD) - Windows ARM64 - Linux x64 (Intel/AMD) - Linux ARM64 - macOS x64 (Intel) - macOS ARM64 (Apple S

Other Model Context Protocol servers in the same space as jsts-upgrade-assistant. Each one adds different capabilities to your AI assistant — pick based on the data sources or workflows you need.

Browse the full MCP server directory or use Stork's one-line install to let your agent pick the right server automatically.