JSON Structure

There is a proposal for a new spec (JSON Structure) as an alternative to JSON Schema when the focus is on a language that describes data structures, not validation. This is also what Part 5 is about. JSON Structure also supports units, etc.

The landing page is https://json-structure.org.

From the intro:

JSON Structure is a schema language that can describe data types and structures whose definitions map cleanly to programming language types and database constructs as well as to the popular JSON data encoding. The type model reflects the needs of modern applications and allows for rich annotations with semantic information that can be evaluated and understood by developers and by large language models (LLMs).

JSON Structure’s syntax is similar to that of JSON Schema, but while JSON Schema focuses on document validation, JSON Structure focuses on being a strong data definition language that also supports validation.

This topic is under discussion in the IETF HTTP API Working Group.

If it gains traction, it might be an additional or alternate option for future versions of Part 5.

Read Part 5 and the JSON Structure landing page first, then review the issue discussion and the HTTP API Working Group context. Done would require a decided position on whether JSON Structure should be an additional or alternate option for a future version of Part 5, along with an agreed scope.