Design and build rich, structured UI responses — cards, forms, dashboards, data visualisations. Inspired by Google's A2UI proposal.
From Wikipedia
In computer networking, a rich client is a computer that typically provides rich functionality independent of the central server. This kind of computer was originally known as just a "client" or "thick client," in contrast with "thin client", which describes a computer heavily dependent on a server's applications. A rich client may be described as having a rich user interaction.