SEO AI Agents for Sanity

How does it know where my meta lives?

It looks. Sanity has no fixed field names, so agents resolve your document's real shape in the same query that finds the document: whether meta sits in a seo object or at the top level, and which key holds the body. The change is then written exactly there, which is why your template renders it instead of a stray field nobody reads.

Could it create a field my schema does not have?

This is the failure mode worth knowing about on Sanity, and the answer is no. Your schema lives in your Studio, not in the API, so the mutation API accepts any key you send and returns a success. A tool that guesses at field names silently creates orphan attributes nothing renders, and it looks fine because reading them back returns what was written. Agents write only into keys the document already has.

Will updating a title clear the fields next to it?

No. Meta is patched at its exact path, so setting a meta title touches only that key and leaves the description, canonical and anything else in the same object untouched.

Can agents rewrite the body of a document?

Only where the body is a plain string field. Sanity stores rich content as Portable Text, a structured format rather than HTML, and agents do not write into it. Titles, slugs and meta work regardless. If your bodies are Portable Text, treat SEOmatic as handling everything around the content rather than the content itself.

Can agents set canonical tags, noindex or schema markup?

Not unless your schema has fields for them, and even then those directives are rendered by your front end rather than the CMS. When a fix needs one, the agent writes the exact change and hands it to you. On WordPress the same agent writes all three directly.

Does the change show up on my live site straight away?

That depends on your front end. Sanity is headless, so the document updates immediately and your site reflects it on its next build or revalidation. If your site is statically generated, the change is live in Sanity before a visitor sees it.

What if the agent makes a change I do not like?

Every edit stores the previous values before it writes, so a change goes back to what it was in one click. The agent starts in approval mode, so by default you see each change before it is applied, and documents you mark as protected keep waiting for your yes. One honest limit: restoring a field that was previously empty is handed to you rather than applied automatically, because an empty value is treated as leave alone rather than clear.

What happens to the work if I cancel?

It stays yours. Agents write into your own Sanity dataset, so the documents and edits are simply part of it. Nothing reverts or disappears if you stop paying.