Data & schema semantics · Type system

x-struct

`x-struct` appears on schema objects and properties. Its value is a string. Used by a single provider across 12 OpenAPI documents. Observed values include `null`, `Elixir.SwitchboardWeb.V1.Specs.PageInfo`, `Elixir.SwitchboardWeb.V1.Specs.InlinePreferenceSetRequest`, `Elixir.SwitchboardWeb.V1.Specs.PreferenceSetRequest`. Consistent with type system — this is inferred from where the key appears and what it carries, not from any published definition.

Data & schema semantics derived description
How this description was produced. It is assembled from what was measured in the corpus — where this key appears in a document, what shape its value takes, the values observed, and how many providers use it. It is not taken from a published definition, because for most extensions none exists. Read it as evidence, not as a specification. If you own this extension and want it described properly, tell us.
3505 occurrences
12 documents
1 providers
purpose-named

Where it appears

Location in the documentOccurrences
operation 566
schema 2834
requestBody 20
response 77
header 8

What its value looks like

Value shapeOccurrences
string3505

Observed values

Sampled from the specifications, most frequent first.

nullElixir.SwitchboardWeb.V1.Specs.PageInfoElixir.SwitchboardWeb.V1.Specs.InlinePreferenceSetRequestElixir.SwitchboardWeb.V1.Specs.PreferenceSetRequestElixir.SwitchboardWeb.V1.Specs.PreferenceSetWorkflowCategorySettingElixir.SwitchboardWeb.V1.Specs.ConditionElixir.SwitchboardWeb.V1.Specs.PreferenceSetChannelsElixir.SwitchboardWeb.V1.Specs.PreferenceSetChannels.PreferenceSetChannelSetting

Providers publishing it

All 1.

knock-app

Why this is not in OpenAPI

Extensions exist because a provider needed something the specification would not carry. Most of what they hold is not the API contract at all — it is operational metadata about the contract: documentation, lifecycle, policy, provenance, and now agents. That metadata is usually better placed alongside the contract, in an Overlay or an APIs.json index, than crammed inside it. See everything else doing the data & schema semantics job.