This is the clearest version of this debate I have seen, so let me try to put a frame on it, because the thread keeps circling.
Two different things are getting mixed together, and they have different fixes.
One is AI search citation. ChatGPT or Perplexity answering a buying question by reading pages and citing sources. This rewards legibility. Can a crawler read your page at all, are your products clean machine readable entities, is the answer stated plainly, do your pages connect into one map.
The other is agentic shopping. Gemini, Copilot, and the Shopify agentic storefront pulling structured catalog and feed data through protocols. This rewards your product and variant data being complete, consistent, and governed, which is exactly what Gabe is describing at 8500 SKUs.
They overlap, and the foundation underneath both is the same. Most stores fail that foundation before any of the advanced work matters. In order:
First, the Front Door. Can a machine read the page at all. A surprising number of stores serve a near blank page to crawlers, because the content only loads with JavaScript, or a bot wall blocks them outright. Nothing downstream counts if this is broken.
Second, Entity Integrity. Complete Product and Organization data. Price, availability, identifiers, real social links, ratings. This is the layer AI actually cites, and it is where most stores fail hardest.
Then the rest. Readability, internal structure, and yes off site credibility, which this thread is right about. Reddit, editorial, reviews, and consistent third party descriptions all raise a model’s confidence to name you. But off site signals do not save a store the AI cannot read in the first place.
On llms.txt and ai.txt, I would not spend much time there yet. There is little evidence the major engines meaningfully read them today, and it is easy to mistake for progress. Fix the things they demonstrably use first.
The simple version. This is not a new playbook, it is the old foundations plus a new unit. Search rewarded the page. AI rewards the entity.
I will be happy to run those five checks on a specific store if anyone wants to see where they actually stand. Drop a URL.