# umbriel

> umbriel — obscuritysrl-umbriel. Use this tool when you need to automate interactions with Windows applications, enabling AI agents to control desktop and OS operations without requiring cursor input. It solves problems of automating tasks on locked or background windows, and integrates with AI systems through five layers including OCR and UI Automation. Umbriel takes in automation commands and outputs controlled Windows app interactions, ideal for use cases requiring seamless and efficient desktop automation.

Canonical page: https://skillsregistry.net/skills/obscuritysrl-umbriel  
JSON: https://api.skillsregistry.net/v1/skills/obscuritysrl-umbriel

## Description

MCP server for driving any Windows app through five layers including OCR, UI Automation, and direct OS operations. Enables AI agents to control Windows desktop and OS cursor-free, even on background/locked windows.

## Trust

- **Trust score (0–1):** 0.68
- **Verification tier:** scanned
- **Last scanned:** 2026-09-03

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** ai-ml
- **Updated:** 2026-09-03

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/a7u6qzlq0w)
- **Repository:** <https://github.com/ObscuritySRL/umbriel>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "obscuritysrl-umbriel"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/obscuritysrl-umbriel` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/obscuritysrl-umbriel/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt