GitHub - mediar-ai/terminator: playwright for windows computer use

🤖 Computer Use MCP that controls your entire desktop

Give AI assistants (Claude, Cursor, VS Code, etc.) the ability to control your desktop and automate tasks across any application.

Claude Code (one-liner):

claude mcp add terminator "npx -y terminator-mcp-agent@latest"

Other clients (Cursor, VS Code, Windsurf, etc.):

Add to your MCP config file:

{
  "mcpServers": {
    "terminator-mcp-agent": {
      "command": "npx",
      "args": ["-y", "terminator-mcp-agent@latest"],
      "env": {
        "LOG_LEVEL": "info",
        "RUST_BACKTRACE": "1"
      }
    }
  }
}

See the MCP Agent README for detailed setup instructions.

Why Terminator MCP?

Uses your browser session - no need to relogin, keeps all your cookies and auth
Doesn't take over your cursor or keyboard - runs in the background without interrupting your work
Works across all dimensions - pixels, DOM, and Accessibility tree for maximum reliability

Use Cases

Create a new instance on GCP, connect to it using CLI
Check logs on Vercel to find most common errors
Test my app new features based on recent commits

🚀 What's new

10/30 Public alpha is live - n8n for legacy software
09/26 Terminator was on Cohere Labs podcast, also check the slides
08/25 Big release — NodeJS SDK in YAML workflows, run JS in browser, OS event recording → YAML generation in MCP, and more
08/25 we raised $2.8m to give AI hands to every desktop

🧠 Why Terminator

For Developers

Create automations that work across any desktop app or browser
Runs 100x faster than ChatGPT Agents, Claude, Perplexity Comet, BrowserBase, BrowserUse (deterministic, CPU speed, with AI recovery)
95% success rate unlike most computer use overhyped products
MIT-licensed — fork it, ship it, no lock-in

We achieve this by pre-training workflows as deterministic code, and calling AI only when recovery is needed.

For Teams

Our public beta workflow builder + managed hosting:

Record, map your processes, and implement the workflow without technical skills
Deploy AI to execute them at >95% success rate without managing hundreds of Windows VMs
Kill repetitive work without legacy RPA complexity, implementation and maintenance cost

Feature Support

Terminator currently supports Windows only. macOS and Linux are not supported.

Feature	Windows	macOS	Linux	Notes
Core Automation
Element Locators	✅	❌	❌	Find elements by `name`, `role`, `window`, etc.
UI Actions (`click`, `type`)	✅	❌	❌	Core interactions with UI elements.
Application Management	✅	❌	❌	Launch, list, and manage applications.
Window Management	✅	❌	❌	Get active window, list windows.
Advanced Features
Browser Automation	✅	❌	❌	Chrome extension enables browser control.
Workflow Recording	✅	❌	❌	Record human workflows for deterministic automation.
Monitor Management	✅	❌	❌	Multi-display support.
Screen & Element Capture	✅	❌	❌	Take screenshots of displays or elements.
Libraries
Python (`terminator.py`)	🟡	❌	❌	`pip install terminator`
TypeScript (`@mediar-ai/terminator`)	✅	❌	❌	`npm i @mediar-ai/terminator`
Workflow (`@mediar-ai/workflow`)	✅	❌	❌	`npm i @mediar-ai/workflow`
CLI (`@mediar-ai/cli`)	✅	❌	❌	`npm i @mediar-ai/cli`
KV (`@mediar-ai/kv`)	✅	❌	❌	`npm i @mediar-ai/kv`
MCP (`terminator-mcp-agent`)	✅	❌	❌	`npx -y terminator-mcp-agent --add-to-app [app]`
Rust (`terminator-rs`)	✅	❌	❌	`cargo add terminator-rs`

Legend:

✅: Supported - The feature is stable and well-tested.
🟡: Partial / Experimental - The feature is in development and may have limitations.
❌: Not Supported - Not available on this platform.

🕵️ How to Inspect Accessibility Elements (like `name:Seven`)

To create reliable selectors (e.g. name:Seven, role:Button, window:Calculator), you need to inspect the Windows Accessibility Tree:

Windows

Tool: Accessibility Insights for Windows
Alt: Inspect.exe (comes with Windows SDK)
Usage: Open the app you want to inspect → launch Accessibility Insights → hover or use keyboard navigation to explore the UI tree (Name, Role, ControlType, AutomationId).

These tools show you the Name, Role, ControlType, and other metadata used in Terminator selectors.

Platform Support

Platform	CLI	MCP Agent	Automation	Installation Method
Windows	✅	✅	✅	npm/bunx

Note: Terminator currently supports Windows only. macOS and Linux support is not available.

Troubleshooting

For detailed troubleshooting, debugging, and MCP server logs, send us a message.

Contributing

Contributions are welcome! Please feel free to submit issues and pull requests. many parts are experimental, and help is appreciated.