2026-01-27T20:01:24Z

ATProto Lexicons

Create a taxonomy for ATProto app themes.

Create an index of ATProto lexicons by theme and/or semantic content.

Crib from the RDF ecosystem, which has more or less figured this out.

Developers benefit by increased findability.

Developers new to the ecosystem may not know that a lexicon that suits their needs already exists.

Dorian Taylor

Even if an existing lexicon provided partial coverage, a developer could extend it via subclass or mix-in.

How do we represent the themes?

Is there prior art on indexing data vocabularies by theme?

Model the changes to index membership as well as changes to the topology of the taxonomy itself.

Users are coming to the ATmosphere looking for ATProto-compatible apps in various application domains.

Users can browse ATProto apps from familiar categories, without being overwhelemed by choices.

Why an index of lexicons and not an index of apps?