A plain-text file at app.onepassapps.com/llms.txt is the version of our site that a language model reads. I have written about the file twice before: on 4 November, when I measured it at 6,065 bytes across 62 lines with 15 linked entries, and on 8 November about how its URL set lines up with our sitemap. This time I went through the descriptions instead of the links.

I work on OnePassApps, the team behind app.onepassapps.com, so everything below is a measurement of our own live site on 12 November 2026, fetched over plain HTTPS with no JavaScript and no signed-in session.

What the file is now

/llms.txt answers HTTP 200 with the content type text/plain; charset=utf-8 and 17,965 bytes across 122 lines. It carries 8 headings and 94 bullets. 55 of those bullets are markdown links - 22 app pages, 23 guide pages, 7 Studio pages and 3 platform pages - and 39 are plain text with no link in them at all.

Those 55 linked URLs are exactly the 55 of our 56 sitemap URLs that are not the home page. That comparison is the 8 November post and this is not a repeat of it; the canonical write-up is The 55 of 56.

The description layer: 47 of the 55 are the page's own meta description

I fetched each of the 55 targets and read its <meta name="description"> out of the served HTML, then compared it with the description llms.txt prints beside the link.

47 of the 55 are byte-identical. Split by group:

  • app pages: 22 of 22 identical
  • guide pages: 22 of 23 identical
  • Studio pages: 0 of 7 identical
  • platform pages (plans, terms, vote): 3 of 3 identical

So for three quarters of the file, llms.txt is not writing anything new. It repeats, word for word, the description each page already serves to a search engine.

The eight that differ

Seven of them are the Studios, and they differ in one direction - llms.txt says more than the page does. The page's meta description stops at the first sentence:

Convert, compress, resize, crop and prepare images on this device.

llms.txt keeps going:

Convert, compress, resize, crop and prepare images on this device. Tools: Convert, Compress, Resize, Crop, Remove background, Remove metadata, Images to PDF.

That "Tools:" tail is the only place in the file where a description lists what a tool can do, and it is the whole reason the seven Studio lines do not match their pages. Across the seven Studios the tail carries 49 tool names - 7 for Image, 4 for Audio, 7 for File, 8 for Text, 11 for Data, 8 for Icon, 4 for Colour - which is the same 49 the studio registry post names, so the file carries that registry forward in prose form.

The eighth goes the other way. "All app guides" says less in llms.txt: "Supported tasks, steps, formats, and limitations." against the page's own "Explore practical OnePassApps app guides, supported formats, step-by-step instructions, and tool limitations."

The prose layer: 39 bullets, no URLs

The other half of the file is not links. The "Access and cost" section is 23 bullets with no URL in any of them: one for each of the 22 apps, plus one line for Browser-local Studios as a group.

Twenty of those 23 are the same sentence with the app's name swapped into it - the name, then "Yes, it is free.", then the name again, then "runs in your browser with no account or payment details, and it never uses OnePassApps credits." Only three are written by hand: NewsFlow (briefs prepared at no credit cost, guests reading the public Inbox within shared capacity), MovieMatcherAI (browsing open without an account, film analysis and fresh title lookups drawing on the plan's credits) and the Studios line.

The remaining plain-text bullets are the three plan lines, the twelve terms-of-use section names and the support contact.

Nothing points at it

I left a promise on 4 November: the file is not linked from our own pages. Checking that again today, 0 of the 56 pages in our sitemap contain the word "llms" anywhere in the served HTML, robots.txt does not name it, sitemap.xml does not list it, and the home page carries no link to it. It is reachable by guessing the path and by nothing else we publish. The canonical write-up for the file itself is What app.onepassapps.com Tells AI Tools.

Limits

One build, one day, plain HTTPS, no cookies, no JavaScript, no signed-in session, 12 November 2026. I compared only the 55 URLs llms.txt names. I did not test how any crawler or model reads the file, and I make no claim about whether it is read at all.

The studios themselves are at app.onepassapps.com/studios/image, and the guides it links are at app.onepassapps.com/guides.