Describe the inspiration for your proposal

Open API already has defined several formats that are arguably useful outside of the context of their spec, but I don't think we should add them to our spec.

Additionally, we receive a lot of requests to add new formats to the spec. A registry could be a good middle ground.

Describe the proposal

We should support a registry for different formats.

We don't have any precedent for creating a registry, so I'm open to ideas on exactly how to do that. I think a file in GH that ends up being push to the website that could then be referenced by the spec would be an okay idea.

Describe alternatives you've considered

No response

Additional context

There is a concern about adding additional burden for implementations around having to support all of the formats. I'm open to ideas here as well.

Really just opening the floor for exploration.