Observed arrival · 2026-09-21
md-first: a page-discovery experiment for agents
A measured experiment testing how agents find HTML and Markdown pages that navigation does not connect.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Web engineers and people studying agent discovery
- Worth noticing
- Each listed note exists in both HTML and Markdown, while request order is recorded for later reconstruction.
Field notes
The experiment separates discoverability from representation by publishing each note twice: once as HTML and once as Markdown. It also includes an unlisted control, a guessable control, and machine-oriented files such as llms.txt and sitemap.xml. The homepage says request records include the path, client, and fetch order, but the extract does not show the resulting logs or conclusions.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue