a11y-violation-gate SKILL.md skillA

a11y-violation-gate from testland/qa is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add testland/qa/a11y-violation-gate@git:20260813.84b37f4

Pins git:20260813.84b37f4 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
testland/qa
Path
plugins/qa-accessibility/skills/a11y-violation-gate/SKILL.md
Versions recorded
5
Latest version
git:20260813.84b37f4, committed Aug 13, 2026
First version recorded
Jul 6, 2026
Size
7,951 bytes
Repository stars
11
License
MIT

Builds a CI gate that fails the build on **new** WCAG / a11y violations introduced by a PR while grandfathering pre-existing violations on a per-rule / per-page baseline. Aggregates verdicts from axe-core / pa11y / Lighthouse a11y / WAVE / IBM Equal Access scans. Use when a project has accumulated a11y debt and a strict "zero violations" gate would block every PR - the ratchet pattern lets the team ship while preventing regressions.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# a11y-violation-gate

## Overview

A binary "all or nothing" a11y gate blocks every PR on a project
with accumulated debt, so teams disable it. The **ratchet pattern**
fixes this: the gate fails only on **new** violations vs. a stored
baseline. Existing violations are grandfathered; fixes shrink the
baseline.

This skill builds that gate, aggregating outputs from any
combination of the five scanners covered by `axe-a11y`
(axe-core, pa11y, Lighthouse a11y, WAVE, IBM Equal Access).

Sibling gates with the same architecture: `data-quality-gate`,
`visual-baseline-gate`, `contract-compatibility-gate`,
`perf-budget-gate`.

## When to use

- The project has a11y debt and the team wants to gate against
  regressions while paying down the debt over time.
- Multiple a11y scanners run in CI; the team wants one verdict.
- Per-rule or per-page severity tiering matters (e.g. block on
  serious/critical, warn on moderate).

If the project is a11y-clean already, prefer a strict scanner-
native gate (e.g. `axe-core` configured to fail on any violation)
without ratchet - simpler.

## Step 1 - Run the scanners and unify their outputs
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add testland/qa/a11y-violation-gate@sha256:3ee3570fe7b9a2e5

The line at the top of this page pins the label git:20260813.84b37f4, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_k7mzvroxgzfir4u2.svg)](https://markdownregistry.com/a/art_k7mzvroxgzfir4u2)

2 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 5 versions of this file, between Jul 6, 2026 and Aug 13, 2026, about one every 9 days.

versioncommittedcommitsizeaudit
git:20260813.84b37f4 latest2026-08-13 84b37f4 7,951 BA view · diff
git:20260728.1bce4242026-07-28 1bce424 7,945 BA view · diff
git:20260724.d4db7562026-07-24 d4db756 9,948 BA view · diff
git:20260718.ab299072026-07-18 ab29907 10,234 BA view · diff
git:20260706.d9cec5f2026-07-06 d9cec5f 10,776 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (7951 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

testland/qa · 11 stars · license MIT · pushed 2026-10-20 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_k7mzvroxgzfir4u2
GET https://markdownregistry.com/api/v1/resolve?ref=testland/qa/a11y-violation-gate
GET https://markdownregistry.com/api/v1/blob/3ee3570fe7b9a2e5e1b75b75a6ca654e44cfb86b20cb2c96565ecd8cece3f495

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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