Rayfin Hello World

A sample VS Code extension that automatically opens a terminal and greets you on startup.

Features

🔍 Checks for prerequisites — verifies npm and Docker are installed on startup
📦 Auto-installs Rayfin CLI — runs npm create @microsoft/rayfin@latest if not found
❌ Helpful error messages — if npm or Docker are missing, shows download links
🎉 Command Palette — run "Rayfin: Hello World" anytime to see a notification

After installing, reload VS Code (Ctrl+Shift+P → Reload Window). The extension will:

Check if npm is installed — if not, shows an error with a link to download Node.js
Check if Docker is installed — if not, shows an error with a link to download Docker Desktop
If both are present, checks for the Rayfin CLI and installs it automatically

Command	Description
`Rayfin: Hello World`	Shows a Hello World notification

Open the Command Palette (Ctrl+Shift+P) and type the command name to run it.