Summary
Pipes Val's browser-driven QA checks into Claude so your AI assistant can see what's broken and help you fix it. Val crawls your staging or preview URLs with real Chrome, catches dead links, busted layouts, accessibility violations, console errors, and mobile-only bugs across device profiles. The MCP server exposes scan results and findings that Claude can read and reason about. Useful when you're shipping fast with AI-generated code and want an automated second pair of eyes that can both find the bugs and suggest patches. Requires a Val subscription and license key from nyx-intelligence.com.
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one prompt install →Val QA scan — GitHub Action
Run Val, the QA agent for vibecoded apps, on every PR. Val drives a real browser against your preview URL, catches broken links, dead buttons, busted layouts, accessibility violations, and posts a report as a PR comment.
Requires a Val subscription
Val is a paid product. Get a license key at val.nyx-intelligence.com, store it as a repository secret (e.g. VAL_LICENSE_KEY), and pass it to the action.
Quick start
name: Val QA
on: pull_request
jobs:
qa:
runs-on: ubuntu-latest
steps:
- name: Deploy preview
id: deploy
# ... your preview deployment step (Vercel, Netlify, etc.) ...
# outputs.url should be the preview URL
- name: Val scan
uses: nyx-intelligence/val-action@v1
with:
url: ${{ steps.deploy.outputs.url }}
license-key: ${{ secrets.VAL_LICENSE_KEY }}
devices: 'desktop,iPhone 14'
fail-on: 'high'
Inputs
| Name | Default | Description |
|---|---|---|
url | (required) | The URL Val should scan. Pass your preview deployment URL. |
license-key | (required) | Your Val license key (vk_...). Get one at val.nyx-intelligence.com. |
max-pages | 12 | Maximum same-origin pages to crawl. |
devices | desktop | Comma-separated device profiles, e.g. desktop,iPhone 14,Pixel 7. |
fail-on | high | Severity that fails the action: high, medium, low, or never. |
comment | true | Post the report as a PR comment (true / false). |
github-token | ${{ github.token }} | Token used to post the PR comment. |
Outputs
| Name | Description |
|---|---|
high | Number of high-severity findings. |
medium | Number of medium-severity findings. |
low | Number of low-severity findings. |
report-path | Path to the raw report file. |
What Val checks
- Broken links and 4xx/5xx responses
- Uncaught JS errors and console errors
- Broken/missing images
- Horizontal layout overflow on mobile
- Clipped text in fixed containers
- Cumulative Layout Shift (janky load)
- A11y essentials: missing alt, unnamed buttons, unlabeled inputs, missing
<html lang> - Multi-device: catches bugs that appear only on mobile or only on desktop
Permissions
The action needs pull-requests: write to post comments:
permissions:
contents: read
pull-requests: write
Featured
Plug Mailtrap into your AI workflow and let it handle the email.
Connect Mailtrap MCP →Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →Make coding agent sessions - Searchable, Shareable, Vendor-neutral & Scored.
Try For Free →Your agent targets a perfect 10 Code Health score. Deterministic. Every commit.
Try For Free →Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →Configuration
VAL_LICENSE_KEY*secretYour Val license key (vk_...). Subscribe at val.nyx-intelligence.com (4.99 USD per month) if you do not have one.
Categories
Registryactive
Package@nyx-intelligence/val-mcp
TransportSTDIO
AuthRequired
UpdatedMay 29, 2026
