As AI tools crawl and summarize the web, site owners want more say in how their content is used. llms.txt is a proposed convention, a markdown file at your site root that points AI systems to your most important, clean content. Here's a grounded take on whether to bother.
What it is (and isn't)
- What it is: a curated, human-readable map of your best content for LLMs.
- What it isn't: an enforcement mechanism, tools may ignore it.
- Not robots.txt: robots.txt controls crawling; llms.txt guides comprehension.
- Not access control: it won't stop training or block usage.
Should you add one?
For most sites, yes, cautiously. It's cheap to create, can help LLMs surface your canonical explanations, and signals intent. Just don't expect it to be a visibility silver bullet; extractable content, schema and third-party presence still do the heavy lifting.
