Public documentation
Overview
What A11Y Cat Extension is, who it supports, and how to use the documentation without overclaiming scan certainty.
Product summary
A11Y Cat Extension is a Chrome MV3 extension for current-page accessibility inspection. It combines bundled axe-core checks, A11Y Cat custom modules, guided manual review workflows, diagnostics, local history, and user-triggered exports.
Who this guide is for
Developers
Understand scanner evidence, selectors, source rule IDs, export payloads, and remediation handoff boundaries.
QA testers
Run repeatable reviews, record limitations, and avoid treating advisory output as confirmed failures.
Accessibility reviewers
Separate automated findings from manual checks, contrast inspection, screen reader review support, and real AT validation.
Product and release stakeholders
Understand release status, local-first behaviour, privacy-sensitive exports, and what the extension cannot certify.
Review contract
| Principle | How the docs apply it |
|---|---|
| Evidence first | Scanner output is described by source, confidence, review type, and current-page scope. |
| Human review required | Automated checks support accessibility review; they do not replace expert testing or real assistive technology testing. |
| Local-first public package | The documented extension package processes scan evidence in the browser and creates exports only after user action. |
| No conformance overclaim | The docs do not claim full WCAG conformance, certification, Chrome Web Store approval, or production readiness unless release evidence proves it. |
Use the docs as operating guidance
Run the extension on representative page states, review the classification, record limitations, and verify user impact with manual methods before making release claims.