Currently, all images on github.com are automatically wrapped in an anchor tag.
As a result, images that are intentionally marked as decorative (via alt="") end up rendering as a link without an accessible name. This is confusing and inaccessible for assistive technology users.
This rule can be enabled to enforce that the alt attribute is always set to descriptive text.
This rule should be removed once this behavior is updated on GitHub's UI.
<img src="cat.png" alt=""><img src="mona.png" alt="Mona Lisa, the Octocat">