GDD

GDD v1.0.0 — Giggly-Dazzling-Duckling

First public release of GDD — an AI-powered multi-browser testing tool.

Download

• GDD.exe — Single self-contained executable (~70 MB). No .NET installation required.
• appsettings.json — Default configuration file. Place next to GDD.exe.
• mcp-proxy-auto.ps1 — Stdio proxy for Claude Code MCP integration. Auto-launches GDD.

Prerequisites

• Windows 10/11
• WebView2 Runtime — GDD checks on startup and offers to install if missing

Highlights

• 25 MCP tools — Player management, navigation, interaction, reading, screenshots, device/network/geolocation emulation, auth, diagnostics, JS execution
• 22 device presets — iPhone SE through 16 Pro Max, Pixel 9, Galaxy S24, iPads, desktops
• 5 network presets — Online, 4G, Fast 3G, Slow 3G, Offline
• 5 location presets — Moscow, Saint Petersburg, New York, London, Tokyo
• Video wall — See all browsers at once with DWM thumbnail rendering
• Auto-launch — mcp-proxy-auto.ps1 starts GDD automatically when Claude Code connects
• Dark theme with system title bar color matching
• Built-in manual — Help button + gdd_get_manual M2M API

Quick Start

1. Download GDD.exe and appsettings.json into the same folder
2. Download mcp-proxy-auto.ps1 and update the path to GDD.exe inside it
3. Add to your project .mcp.json:

   {
     "mcpServers": {
       "gdd": {
         "command": "powershell",
         "args": ["-ExecutionPolicy", "Bypass", "-File", "path/to/mcp-proxy-auto.ps1"]
       }
     }
   }
   

4. Start a Claude Code session — GDD launches automatically

See README for full documentation.