# io.github.rog0x/a11y (npm · @rog0x/mcp-a11y-tools)

Alt text, headings, contrast, ARIA for AI agents

- Trust score: 69/100 (medium)
- Change this week: +23
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- npm · `@rog0x/mcp-a11y-tools`: 69/100 (this document), [markdown](https://verifymcp.io/servers/rog0x-a11y/rog0x-mcp-a11y-tools.md), [page](https://verifymcp.io/servers/rog0x-a11y/rog0x-mcp-a11y-tools)

## Channel facts

- Registry: `npm`
- Package: `@rog0x/mcp-a11y-tools`
- Version: `1.0.2`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-08-03.

- **Supply Chain Security**: 86/100
  - No malware found by supply-chain analysis.
  - Only part of the dependency tree could be resolved (116 of 121), so this covers what we could see, not the whole tree.
  - No install/post-install scripts declared.
  - Only part of the dependency tree could be resolved (116 of 121), so this covers what we could see, not the whole tree.
- **Provenance & Transparency**: 45/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 133 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 77/100
  - AI-judged instruction clarity (excellent).
  - Tool/resource definitions use about 366 tokens (~73/item across 5 items; 5 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 23/100
  - Stability observed for 7 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add rog0x-a11y -- npx -y @rog0x/mcp-a11y-tools
```

### Codex

```bash
codex mcp add rog0x-a11y -- npx -y @rog0x/mcp-a11y-tools
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "rog0x-a11y": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@rog0x/mcp-a11y-tools"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add rog0x-a11y --command npx --arg -y --arg @rog0x/mcp-a11y-tools
```

### Hermes

```yaml
mcp_servers:
  rog0x-a11y:
    command: "npx"
    args: ["-y", "@rog0x/mcp-a11y-tools"]
```

### Other

```json
{
  "mcpServers": {
    "rog0x-a11y": {
      "command": "npx",
      "args": [
        "-y",
        "@rog0x/mcp-a11y-tools"
      ]
    }
  }
}
```

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-08-03 (score 69, +4)

- [functional improvement] Stability: unverified → 0.23

### 2026-08-02 (score 65, +7)

- [security regression] Provenance: fail → unverified
- [security regression] Install scripts: pass → unverified
- [security improvement] Known CVEs: unverified → partial
- [functional regression] License: pass → unverified
- [functional regression] Maintenance: pass → unverified
- [functional improvement] Dependency health: unverified → partial
- [functional] Licence: MIT

### 2026-08-01 (score 58, −11)

- [security regression] Known CVEs: partial → unverified
- [functional regression] Dependency health: partial → unverified

### 2026-07-31 (score 69, +54)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-30 (score 15, −11)

- [security regression] Provenance: unverified → fail
- [security regression] Malware scan: pass → unverified
- [security improvement] Install scripts: unverified → pass
- [functional regression] Security disclosure: unverified → fail
- [functional regression] Dependency health: partial → unverified
- [functional improvement] License: unverified → pass
- [functional improvement] Maintenance: unverified → pass
- [functional] Licence: MIT

### 2026-07-29 (score 26, +2)

- [functional regression] Security disclosure: fail → unverified
- [functional improvement] Dependency health: unverified → partial

### 2026-07-28 (score 24, −22)

- [functional regression] Tool coverage: 100 → unverified
- [functional] First check of Schema quality: unverified

### 2026-07-27 (score 46)

First indexed and scored.

## MCP tools (5)

### `check_alt_text` (~70 tokens)

Analyze images in HTML for missing, empty, or low-quality alt text. Reports which images need alt text, which use decorative (empty) alt, and which are properly labeled. Also checks linked images and input[type=image].

Input parameters:

- `html` (string, required): The HTML content to analyze for image alt text

### `check_heading_hierarchy` (~66 tokens)

Validate heading structure in HTML: checks for proper h1-h6 nesting order, no skipped levels, single h1, empty headings, and heading content quality. Returns a visual tree of the heading structure.

Input parameters:

- `html` (string, required): The HTML content to analyze for heading structure

### `check_color_contrast` (~96 tokens)

Check WCAG 2.x contrast ratio between a foreground and background color pair. Reports AA and AAA compliance for both normal and large text. Accepts hex (#fff, #ffffff), rgb(r,g,b), or named colors.

Input parameters:

- `background` (string, required): Background color in hex, rgb(), or named color format
- `foreground` (string, required): Foreground (text) color in hex, rgb(), or named color format

### `validate_aria` (~66 tokens)

Validate ARIA attributes in HTML: checks for invalid roles, missing required ARIA properties, redundant ARIA on native elements, aria-label on non-interactive elements, and aria-hidden on focusable elements.

Input parameters:

- `html` (string, required): The HTML content to validate for ARIA correctness

### `check_form_accessibility` (~68 tokens)

Check form elements for accessibility: verifies labels are associated with inputs, radio/checkbox groups use fieldset/legend, placeholder is not used as sole label, autocomplete hints on personal info fields, and detects duplicate IDs.

Input parameters:

- `html` (string, required): The HTML content to analyze for form accessibility

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/rog0x-a11y/rog0x-mcp-a11y-tools#diagnostics

## Score history

- 2026-08-03: 69
- 2026-08-02: 65
- 2026-08-01: 58
- 2026-07-31: 69
- 2026-07-30: 15
- 2026-07-29: 26
- 2026-07-28: 24
- 2026-07-27: 46

## Links

- npm package: https://www.npmjs.com/package/@rog0x/mcp-a11y-tools
- Socket report: https://socket.dev/npm/package/@rog0x/mcp-a11y-tools
- Repository: https://github.com/rog0x/mcp-a11y-tools
- Changelog RSS feed: https://verifymcp.io/servers/rog0x-a11y/rog0x-mcp-a11y-tools/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/rog0x-a11y/rog0x-mcp-a11y-tools/changelog.json
- HTML version of this page: https://verifymcp.io/servers/rog0x-a11y/rog0x-mcp-a11y-tools