Does llms.txt affect how AI tools read a site?

Shopify Discussion
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Topic summary

  • Seeks real-world experiences with implementing llms.txt and whether it produces a noticeable effect on how AI tools read or interpret a website (AI/SEO context).
  • No responses or evidence provided yet; the question remains open and unresolved.
Summarized with AI on December 27. AI used: gpt-5.
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Has anyone actually used llms.txt? Does it have any noticeable effect on how AI tools read or interpret a site?