Accessibility error by default
astro-doctor/no-missing-alt no-missing-alt
All <img>, <Image>, and <Picture> elements must include an alt attribute.
Why
Missing alt text leaves screen-reader users with no context for images. An empty alt="" is only acceptable for decorative images that carry no information.
Examples
✗ Incorrect
No alt attribute
---
import { Image } from 'astro:assets'
import logo from '../assets/logo.png'
---
<Image src={logo} width={120} height={40} /> ✓ Correct
Descriptive alt text
---
import { Image } from 'astro:assets'
import logo from '../assets/logo.png'
---
<Image src={logo} alt="Astro Doctor logo" width={120} height={40} /> Configuration
Override the default severity in your ESLint config:
// eslint.config.js
import astroDoctorPlugin from '@santi020k/eslint-plugin-astro-doctor'
export default [
astroDoctorPlugin.configs.recommended,
{
rules: {
'astro-doctor/no-missing-alt': 'error', // or 'warn' or 'off'
},
},
]
Or in your doctor.config.ts:
export default {
rules: {
'astro-doctor/no-missing-alt': 'error',
},
}
All rules
-
astro-doctor/no-client-load-overuse -
astro-doctor/use-astro-image -
astro-doctor/require-image-dimensions -
astro-doctor/no-missing-alt(this page) -
astro-doctor/no-set-html -
astro-doctor/no-public-secret-env -
astro-doctor/prefer-class-list -
astro-doctor/no-blocking-script -
astro-doctor/no-unprocessed-script-surprises -
astro-doctor/no-missing-lang -
astro-doctor/require-island-fallback -
astro-doctor/no-process-env -
astro-doctor/prefer-content-collections