GDD (Giggly-Dazzling-Duckling)
@Cap-of-tea
AI-controlled browser farm: run N isolated Chromium instances with 36 MCP tools for multi-device testing, screenshots, device emulation, network control, and console diagnostics.
Overview
What is GDD?
AI-controlled browser farm on your machine. Run N isolated Chromium instances with 36 MCP tools — test your site like it's launch day.
Key Features
- Multi-device — 22 device presets: iPhone SE → 16 Pro Max, Pixel 9, Galaxy S24, iPads, desktops
- Human-like input —
humanize=truemoves the mouse along a Bézier curve with natural easing before clicking - Full interaction — Navigate, tap, type, swipe, scroll, hover, handle dialogs, take screenshots
- Device emulation — Screen size, DPR, touch, user agent, geolocation, timezone, language
- Network control — Simulate 4G, Fast 3G, Slow 3G, or offline per browser
- Diagnostics — Console errors, network traffic, performance metrics, push notifications
- Error beacon — Every tool response warns about JS errors across all browsers automatically
- Cross-platform — Windows GUI with live video wall + headed/headless on Linux & macOS
- Docker —
docker run -p 9700:9700 ghcr.io/cap-of-tea/gdd:1.5.0
Quick Start
- Download from GitHub Releases
- Run
./GDD.Headless - Add to
.mcp.json:
{ "mcpServers": { "gdd": { "url": "http://localhost:9700/mcp" } } }
Server Config
{
"mcpServers": {
"gdd": {
"url": "http://localhost:9700/mcp"
}
}
}