Individual skill

generate-alts

Write alt text for the images in the Sanity dataset. A script lists every image usage (document, field, current alt, the asset's title/description/alt text, a caption, the section heading and the text around it), downloads one small preview per asset into a local cache (`.alts/`, never the same image twice), the agent looks at each image and proposes one alt per usage in the site's content language (or marks it decorative), then the script builds an HTML page where the user reviews, edits and approves them and exports `approved.json`; approved alts go into drafts with a dry-run-first script (`--apply` to write). Use when the user asks to "generate/write/fill alt texts", "images without alt", "alt audit", "accessibility of images", "describe our images", after a content import or migration, or before an accessibility or SEO review. Works on Nexity projects (`img` objects) and on similar Sanity sites.

base/.agents/skills/generate-alts/SKILL.md

Source commit d66f0fd9976e15ca51d6fcd5352482c5c66c281b

What was checked

Matches the observed repository HEAD

Yes

Scanner rules are current

No

Repository scan complete

No

Skill scan complete

No

Observed behavior

Not checked yet

Last checked

Nov 4, 2026

These are observations at the recorded commit, not a guarantee of safety. Review the source before running it.

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