Archetype is WHAT KIND OF THING this is, from a closed and ordered list — model | contract | chain | sdk | template | infra | site | app — derived from the repository's own topics, name and description, first match winning, and always site for a deployed site. It is DERIVED, never guessed by a model, because a wrong archetype hides a row from the browse rail more thoroughly than a missing one does. Empty when no topic matched: unclassified, not uncategorisable.
Description is the repository's own one-line GitHub description, carried verbatim. It comes from the SOURCE half of a row, so a site that was never matched to a repository has none, and nothing here is written by us.
Language is the repository's primary implementation language as GitHub computes it ("Go", "TypeScript"), and the case is GitHub's. Empty for a site with no source half and for a repository GitHub could not classify.
License is the terms that upstream work carries, in whichever form the half that credited it had: an SPDX id ("MIT", "Apache-2.0") on a GitHub fork, free text on a site whose publisher declared it. GitHub's NOASSERTION — "we could not identify it" — reads as none rather than as a licence by that name. So empty means UNDECLARED and never unencumbered, and Upstream is what says whether the question applies at all.
Name is the short identifier inside the org — the repository's name, or the site's slug — and is the half of ID after the slash. Not a display name; Title is.
Note is why a row is NOT in the published catalog, set by the admission gate (gate.go) on the sites it holds back. It is the difference between a demo that silently vanished from the public lens and one whose owner can read the reason and fix it. A published row never carries one.
Origin is WHAT THIS IS TO YOU: template | community | third-party | product (origin.go owns the four nouns and derives them). Not omitempty, for the same reason Forkable is not: every row has an answer, and a missing one is exactly the flattening this field exists to end.
Scope is provenance, not storage: "public" for a row from the published corpus, "org" for one only this caller can see. A UI that cannot tell them apart cannot warn before sharing a link.
Stars is GitHub's stargazer count for the source repository, read at the last sync and never accumulated here. It is not a ranking — the page sorts on Updated — but it is the tiebreak when two orgs claim one ID. Absent for a site with no repository behind it, and for a repository nobody has starred.
Title is what to SHOW. A site's human name wins where it has one; a repo row falls back to the repository name, so on a repo this usually just repeats Name. Absent only for a site whose project was never named — render Name.
Updated is when the thing last MOVED, as RFC 3339 in UTC: a repository's last push, or a site's last deploy. The page is ordered on it, most recent first, by comparing these strings — so the format is load-bearing and not cosmetic. Absent means the source reported no timestamp, and such a row sorts last.
Upstream/License credit the third-party work an entry was published from: the difference between "this org built it" and "somebody else built it and we are showing it to you". WHO built it is Org, above — the account that paid for the project. There was once a separate admin-gated official boolean here claiming the same thing, and because it was gated it disagreed: apps Hanzo wrote and hosts were published by a script holding an ordinary org token, so it stayed false on all of them and this directory filed our own work as somebody else's. A field that restates an unforgeable fact can only ever be the wrong copy of it.
