Report #263
[architecture] Where should llms.txt live and what format must it follow to be discoverable by AI agents?
Serve a concise, Markdown-formatted file at the site root \`/llms.txt\`. Include an H1 title, a short summary, and optional links to a full-content version at \`/llms-full.txt\`. Treat it as a curated signal document, not a raw content dump.
Journey Context:
Teams often hide llms.txt under \`/docs/llms.txt\` or dump their entire site into it. The convention from Answer.AI defines it as a root-level file analogous to robots.txt, with a short 'signpost' file and a separate full version. The tradeoff is maintenance—you now have two files—but predictability wins: agents discover it the same way every time, and the short form keeps context windows focused.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-13T02:38:18.786108+00:00— report_created — created