It is a summary, not an access control.
The file can describe the business and link to selected resources in plain text. That may be convenient for readers or tools that choose to consult it. It should not contain private customer information or credentials.
Do not confuse it with robots.txt, which has a different role in communicating crawler instructions. Neither file is a substitute for authentication or server-side access controls.
Keep the claims modest.
Google explicitly says its AI search features do not require a new AI text file. There is no basis for promising that installing llms.txt will create rankings, recommendations or leads.
If you maintain one, the information should agree with the website. An outdated summary containing retired services or old prices can create confusion instead of helping.
What should be in a small business summary?
Use the actual business name, a short service description, the canonical website address and a small set of useful links. Point pricing questions to the current pricing page rather than maintaining a second elaborate price catalog.
Avoid inflated credentials, fake reviews and private operating details. Do not include customer records or internal strategy documents simply because a crawler might read them.
What comes first?
A clear homepage, accurate service information, a functioning enquiry form, search access and genuine proof all come before an optional summary file. Those tasks help real customers directly.
If the website already has a file, keeping it accurate is a small maintenance job. If it does not, ask whether the time would be better spent fixing an incomplete service page or an outdated Google listing.
How we use it here.
Beverly Hills Growth maintains a brief site guide that points to the current contractor services and pricing. It is supplementary to the visible website, not a claim of special AI eligibility.
Our SEO work is judged by completed tasks and available evidence. We do not score success by how many optimization files were installed.
Sources and further reading
This guide explains our approach and the cited sources. Search platforms decide their results; no ranking, citation or enquiry volume is guaranteed.