Guide · Agent skill
How to use the Accesskey Uniqueness Checker agent skill
Updated · written with AI from the project's own documentation and checked against our catalogue data
The accesskeys skill is a set of instructions that teaches an AI agent to review web page markup for duplicate accesskey attributes, the HTML keyboard shortcuts that let users jump to an element with a key press. This guide explains what the skill makes the agent do, how to install it, how to trigger it with plain requests, and what to watch for. After reading, you will be able to add the skill to your agent and ask it to audit a page or component for shortcut conflicts.
Accesskey Uniqueness Checkerthedaviddias/Front-End-Checklist · MIT Download the skill Quick start
- 1Download the ZIP. Get the accesskeys skill ZIP file from the skill's page on the directory.
- 2Unzip into a skills folder. Extract it into ~/.claude/skills/ for personal use, or into a project's .claude/skills/ folder for one project.
- 3Or upload in the Claude apps. In the Claude apps, go to Settings → Capabilities → Skills and upload the skill.
- 4Ask for an accesskey review. Send the page markup or component code and ask the agent to check for duplicate accesskey attributes.
- 5Review the findings. Check which elements share a key, and apply the suggested unique value or removal.
- 6Verify in a browser. Test each shortcut and confirm it reaches the intended element, using accessibility tools or assistive tech where relevant.
What the accesskeys skill makes the agent do
When two elements on a page share the same accesskey value, usually only one of them is reachable with that shortcut, so the others are hard or impossible to use from the keyboard. The skill tells the agent to check rendered HTML and interactive components for this problem.
Once the skill is active, the agent looks for duplicate accesskey attributes, explains the impact on keyboard users, and suggests either a unique value for each element or removing redundant ones. It also notes how to verify the fix with browser accessibility tools or assistive technology.
- Finds duplicate accesskey values across a document
- Explains how the conflict affects keyboard navigation
- Suggests unique values or removal of redundant keys
- Describes how to verify the fix with accessibility tooling or assistive tech
Install the accesskeys skill
Download the ZIP file from the skill's page on the directory. Unzip it into your personal skills folder at ~/.claude/skills/, or into a project's .claude/skills/ folder if you want the skill to apply only to that project.
If you use the Claude apps instead, upload the skill under Settings → Capabilities → Skills.
- Personal install: unzip into ~/.claude/skills/
- Project install: unzip into the project's .claude/skills/ folder
- Claude apps: Settings → Capabilities → Skills, then upload
Trigger the skill with natural requests
You do not need a special command. The skill's description covers reviewing rendered HTML, interactive components and design-system patterns for unique accesskey values, so ask for that work in plain language. Give the agent the markup, a file path or a page to review.
Be specific about scope. Asking for a check of one component is more useful than asking for a full site audit, because this skill covers only the accesskey rule.
- "Check this page for duplicate accesskey attributes."
- "Review the navigation component in src/components/Nav.html for accesskey conflicts."
- "Some of our buttons have accesskey values. Are any of them duplicated, and what should they be instead?"
Read the results and verify the fix
The agent should name the exact elements that share a key and explain which one wins. Its suggested fix is either a new unique value or removing the attribute from elements that do not need a shortcut. Check that the change is correct by testing in a browser and, where relevant, with a screen reader.
Remember that the skill gives guidance from its written rules. It does not run a formal test, so confirm the result with your own tools.
- Confirm each shortcut now maps to one element
- Test the keys in the browser and with assistive technology
- Re-run the check after changes to catch new duplicates
Tips for getting better results
Paste the rendered markup when you can. Source templates can build accesskey values dynamically, so the output of the page is a more reliable input than the template alone.
If your site does not use accesskey attributes at all, this skill has nothing to check. Use a broader accessibility review for other concerns.
- Include the component's surrounding markup so the agent can see every element that uses a key
- Ask for focus behaviour and accessible names too, since the skill's description mentions them where relevant
- Keep one check per request so the findings stay easy to act on
<a href="/save" accesskey="s">Save</a>
<a href="/search" accesskey="s">Search</a>What people use it for
- Auditing a marketing page where several links were given the same accesskey
- Reviewing a shared navigation or header component before release
- Checking a design-system button pattern for conflicting shortcut keys
- Giving an accessibility reviewer a quick first pass on keyboard shortcuts
Frequently asked questions
What does the accesskeys skill do?
It teaches an AI agent to check web page markup for duplicate accesskey attributes. When two elements share a value, usually only the first is reachable by that shortcut, so the agent flags the conflict and suggests unique values or removing redundant ones.
What do I need to use it?
The skill lists no requirements. It does not run scripts and does not use the network. You install the skill files and ask your agent to review markup.
Is the accesskeys skill free?
The skill is published under the MIT licence. Check the licence file in the source repository for the full terms.
Where do I install the accesskeys skill?
Unzip the downloaded ZIP into ~/.claude/skills/ for personal use or into a project's .claude/skills/ folder. In the Claude apps, upload it under Settings → Capabilities → Skills.
Does this skill check my whole site for accessibility?
No. It covers one rule, unique accesskey values. It is a narrow check and not a full accessibility audit or a formal compliance certification.
My site does not use accesskey. Can I still use it?
The skill has nothing to check if no accesskey attributes exist. Choose a broader accessibility review for other issues.
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Our verdict
Use this skill if you build or audit front-end code and want a quick, focused check for duplicate accesskey shortcuts, especially in shared components. Pick a different tool if you need a full accessibility audit, a formal compliance certification, or your site does not use accesskey attributes.
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