Guide · Agent skill
How to use the ARIA Allowed Attributes Checker agent skill
Updated · written with AI from the project's own documentation and checked against our catalogue data
The aria-allowed-attr skill is a set of guidance instructions that tells an AI agent to check whether each ARIA attribute on an element is one that the element's role supports. It is useful for front-end developers, designers, QA reviewers and design-system teams who review HTML or interactive components. After reading this guide you will know how to install the skill, how to ask the agent for a review, and what the agent will and will not do.
ARIA Allowed Attributes Checkerthedaviddias/Front-End-Checklist · MIT Download the skill Quick start
- 1Download the ZIP. Download the skill ZIP from the page where you found this guide.
- 2Unzip into a skills folder. Unzip it into ~/.claude/skills/ for personal use, or into .claude/skills/ inside a project.
- 3Or upload in the Claude apps. In the Claude apps, open Settings, go to Capabilities, then Skills, and upload the skill.
- 4Ask for a review in plain language. Paste your markup or point the agent at the component files and ask it to check ARIA attributes against each role.
- 5Check the findings. Read each flagged attribute, the suggested fix and the explanation, then confirm the change in the code.
- 6Verify with other tools. Confirm fixes with browser accessibility tooling or assistive technology, as the skill's review notes suggest.
What the skill makes the agent do
ARIA attributes are accessibility labels and state markers, such as aria-checked. Each ARIA role supports only a specific set of these attributes. When this skill is active, the agent reviews rendered HTML and interactive components and checks that every ARIA attribute is valid for the element's assigned role.
When it finds a mismatch, the agent points out the unsupported attribute, suggests removing or correcting it, and explains why it matters: screen readers may ignore the attribute or misinterpret the element. The skill also prompts the agent to consider native HTML semantics, keyboard behaviour, focus flow and accessible names where relevant.
Install the skill from the ZIP download
Download the ZIP for this skill from the page where you found this guide. Then unzip it into one of these locations:
- Personal skills folder: ~/.claude/skills/
- Project skills folder: .claude/skills/ inside your project
Install it in the Claude apps instead
If you use the Claude apps rather than a local folder, you can upload the skill there. Open Settings, go to Capabilities, then Skills, and upload the skill from the ZIP.
How to trigger the skill with natural requests
You do not need a special command. The skill's description tells the agent when to use it, so ask for a review of markup or components in plain language. Naming the topic helps, for example mentioning ARIA roles or attributes, and pasting the markup or pointing the agent at the files.
- Review this component for ARIA attributes that are not allowed on its role.
- Check this HTML for unsupported aria attributes and tell me how to fix them.
- Is aria-checked valid on this element? Explain why it matters for screen reader users.
- Review this design-system button pattern for role, name and keyboard behaviour.
Example: a mismatched role and attribute
The skill's reference file gives a clear case. aria-checked is allowed on a checkbox role, so this is correct:
<div role="checkbox" aria-checked="true" tabindex="0">Subscribe</div>What the agent flags and what it does not
The reference file marks aria-checked as not allowed on a heading role. Given markup like that, the agent should flag the attribute and suggest removing it or using a role that supports it. Be aware that the skill is a guidance checklist: it changes how the agent reviews code and does not run automated accessibility tests.
- Flags attributes that do not belong to the element's role
- Suggests removal or correction
- Explains the effect on assistive technology
- Does not run a scanner or produce a full audit
What people use it for
- Reviewing a custom checkbox or toggle built from div elements before release
- Checking a design-system component pattern for consistent ARIA usage across teams
- Spotting aria-* attributes copied onto the wrong element during a code review
- Explaining to a developer why an attribute is ignored by screen readers
Frequently asked questions
How do I install the aria-allowed-attr skill?
Download the ZIP from the page where you found this guide and unzip it into ~/.claude/skills/ for personal use or .claude/skills/ inside a project. You can also upload it in the Claude apps under Settings, then Capabilities, then Skills.
Does the aria-allowed-attr skill require anything else?
The listing states that it requires nothing else. It does not run scripts and does not use the network.
Is the aria-allowed-attr skill free and what is its licence?
The skill is listed under the MIT licence. The source does not mention pricing, so check the listing page for any cost details.
Can this skill replace a full accessibility audit?
No. The skill is a guidance checklist that changes how the agent reviews code. It does not run automated tests, so a full audit should also use automated testing tools and manual checks.
What should I do if the agent does not seem to use the skill?
Check that the ZIP was unzipped into the correct folder, such as ~/.claude/skills/ or .claude/skills/, and that SKILL.md is present. Then name the topic in your request, for example by asking about ARIA attributes on a specific role.
How is this different from an automated ARIA checker?
An automated checker runs tests on a page. This skill asks the agent to reason about the markup you give it, check attributes against roles, and explain the impact. It is better for learning and code review than for scanning a whole site.
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Our verdict
Use this skill if you are a front-end developer, designer or QA reviewer who wants an agent to check ARIA attributes against each element's role and explain the fixes. Pick an automated accessibility testing tool instead if you need a full scan or a formal audit, and do not expect a finished product for non-technical use.
Download the skill