Web Accessibility
CheckedAnalyzes web pages for WCAG compliance, suggesting fixes to improve accessibility for users with disabilities.
Install on your platform
Showing Claude Code. One command installs this skill into any of the agents below.
- 1
Run this in your project
terminal$ npx skills add s-hiraoku/synapse-a2a --skill web-accessibility -a claude-code Uses the open-source
skillsCLI and needs Node.js. Add-gto install it for your user instead of this project.
What we know about this skill
Publisher
s-hiraoku
Taken from the source listing. We haven't verified who controls this account.
Install target
Live repository
Not pinned. Installing fetches whatever the repository holds at the time you run the command.
Automated safety checks
This skill passed all 6 checks. We read its files at one commit and looked for the things that make a skill dangerous to run — not for whether it works.
Declares what it does: passed
SKILL.md parses and declares a name and a description.
SKILL.md exists, its frontmatter parses, and it declares a name and a description.
No undeclared network calls: passed
Makes no network calls.
Every host the skill dials — from its scripts, its config endpoints or the commands it tells the agent to run — is either well-known package and API infrastructure or declared in its own frontmatter. Links in documentation are not counted.
No obfuscated payloads: passed
No encoded or obfuscated payloads.
No base64, hex or compressed blob is decoded and then executed, and no encoded shell commands.
No credential access: passed
Reads no keys, tokens, keychains or credential files.
Neither the code nor the SKILL.md instructions read SSH keys, cloud credentials, keychains, token stores, browser cookie databases or dotfiles that hold secrets.
No pipe-to-shell installers: passed
No pipe-to-shell or download-and-run installers.
No `curl … | sh` pattern, in the code or in the instructions, that runs code fetched at run time.
Pinned to a commit: passed
Scanned s-hiraoku/synapse-a2a at 844eb75d92.
The exact upstream commit SHA that was scanned is recorded, so the result refers to specific bytes.
- Commit
- 844eb75d92
- Scanned
- 3 files, 837 lines
- Copies in repo
- 3 — all of them scanned
About this skill
What it does
This skill enables AI agents to analyze and improve the accessibility of web pages, ensuring they are usable by people with disabilities. It helps identify barriers in navigation, contrast, and semantic structure to create more inclusive digital experiences.
When to use it
- Audit a website before launch to catch missing alt text or poor color contrast.
- Refactor legacy HTML codebases that lack proper ARIA labels or heading hierarchies.
- Validate forms to ensure error messages are announced correctly by screen readers.
- Generate an accessibility report highlighting WCAG compliance gaps for stakeholders.
Key capabilities
- Detects missing alternative text for images and media elements.
- Identifies insufficient color contrast ratios between text and backgrounds.
- Flags improper heading structures and skipped navigation landmarks.
- Suggests ARIA attribute additions for dynamic content and custom widgets.
- Evaluates keyboard navigability and focus management issues.
Example prompts
"Analyze this HTML snippet and list all accessibility violations according to WCAG 2.1." "Refactor this React component to include proper ARIA labels for screen reader support." "Generate a checklist of accessibility improvements needed for this landing page design."
Tips & gotchas
Ensure the AI agent has access to the full DOM structure or valid HTML/CSS code to provide accurate audits. Results may vary if the input lacks context about the target audience or specific WCAG version requirements.