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sophiacave

lo-eyes

by sophiacave
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Python
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lo-eyes

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License: MIT Python 3.10+ MCP Compatible

Visual frontend accessibility inspector MCP server. WCAG contrast checking, touch target validation, heading hierarchy audits, responsive screenshots, and S+ grading across mobile and desktop viewports.

Built by Like One Foundation (501(c)(3) nonprofit). Works with any site by changing BASE_URL.

Tools

Tool

Description

eyes_screenshot

Viewport-sized screenshot at any device preset

eyes_scan

Auto-chunk full page into readable viewport pieces with RAG manifest

eyes_audit

Responsive + accessibility audit with S+ grading

eyes_devices

List available device presets

Related MCP server: webcheck-mcp

Device Presets

Name

Viewport

Type

iphone-se

375x667

Mobile

iphone-14

390x844

Mobile

ipad

768x1024

Tablet

laptop

1280x800

Desktop

desktop

1440x900

Desktop

Audit Checks

  • Overflow: Elements exceeding viewport width (respects scroll parents)

  • Font size: Text below 12px minimum

  • Touch targets: Interactive elements below Apple HIG 44px minimum

  • Heading hierarchy: Skipped heading levels (h1 -> h3)

Grading

Grade

Criteria

S+

Zero issues

A

1-5 medium, zero high

B

6+ medium, zero high

C

1-2 high

D

3-5 high

F

6+ high

Setup

cd lo-eyes
python3 -m venv .venv
source .venv/bin/activate
pip install playwright mcp
python3 -m playwright install chromium

Usage

As MCP Server (Claude Code)

Add to .mcp.json:

{
  "mcpServers": {
    "lo-eyes": {
      "command": "/path/to/lo-eyes/.venv/bin/python3",
      "args": ["/path/to/lo-eyes/server.py"]
    }
  }
}

As CLI

./lo-eyes audit /                           # Audit homepage
./lo-eyes screenshot /blog/ --device ipad   # iPad screenshot
./lo-eyes scan / --device iphone-14         # Full-page chunked scan
./lo-eyes responsive /academy/              # All 5 viewports

Stack

License

MIT

Built with love by Like One.

This server cannot be installed

A
license - permissive license
-
quality - not tested
A
maintenance

How are these scores calculated?

Maintenance

–Maintainers
–Response time
0dRelease cycle
2Releases (12mo)
Commit activity

Resources

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