What ai.txt means
ai.txt is a public text file you publish on your domain that states how you want AI tools to use the content on your site.
A builder who is fine with AI tools reading and summarizing their public docs, but does not want their pricing page scraped for a training set, can write that preference into an ai.txt file instead of leaving it unstated.
Publishing ai.txt is not a legal contract and not a technical block. AI companies are not required to read it or follow it, so it works as a public statement rather than an enforced rule.
You can see Mydentify's own version at /ai.txt as a working example of the format before you write your own.
Why this matters for builders
Use it when you want a clear, crawlable statement of AI usage preferences.
Mistake builders make often
Some builders write an ai.txt file and assume it now blocks unwanted AI use, when in reality it only states a preference that crawlers may or may not respect.
What to do now
Read Mydentify's own ai.txt file as a reference, then pair any AI usage preferences you publish with an actual robots.txt rule for crawlers that do enforce blocks.