No, whatever the invoice says. Adding a few tags and a schema block to a page built for a human with a mouse is still SEO. Optimising for an agentic web starts on the other side: what does software that reads need from you? Clean structure, the full text without the theatre, a JSON or markdown version of every page, and a form it can actually submit. That is not a plugin. It is a second edition of your site, and most of the work is in the content, not in the head of the page. I built that second edition for my own site; you are reading it now.