# fenestra-mcp

> fenestra-mcp — richer-richard-fenestra. Use this tool when you need to test and verify native GUI applications in a headless environment, solving problems such as ensuring accessibility and usability without requiring a display or GPU. It takes in GUI code and outputs a typed accessibility tree, semantic queries, and screenshots, allowing for automated testing and validation. Ideal for use cases where GUI testing needs to be performed in a continuous integration or automated testing context.

Canonical page: https://skillsregistry.net/skills/richer-richard-fenestra  
JSON: https://api.skillsregistry.net/v1/skills/richer-richard-fenestra

## Description

MCP server for fenestra, a pure-Rust native GUI framework. Renders and verifies native UIs headlessly (no display, no GPU): a typed accessibility tree, semantic query/interact, contrast/focus-order/hit-target checks, screenshot diffing, and motion filmstrips.

## Trust

- **Trust score (0–1):** 0.69
- **Verification tier:** scanned
- **Last scanned:** 2026-09-03

## Facts

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

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/u9tpt9z76l)
- **Repository:** <https://github.com/richer-richard/fenestra>

## 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": "richer-richard-fenestra"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/richer-richard-fenestra` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/richer-richard-fenestra/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