Data & schema semantics · Size & shape

x-extra-annotations

`x-extra-annotations` appears on schema objects and properties. Its value is a string. Used by a single provider across 1 OpenAPI document. Observed values include `@jakarta.validation.constraints.Size(max = 100)`, `@jakarta.validation.constraints.Size(max = 10)`, `@jakarta.validation.constraints.Size(min = 0, max = 5)`, `@jakarta.validation.constraints.Size(min = 1, max = 1000)`. Consistent with size & shape — 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.

14 occurrences

1 documents

1 providers

purpose-named

Where it appears

Location in the document	Occurrences
schema	14

What its value looks like

Value shape	Occurrences
string	14

Observed values

Sampled from the specifications, most frequent first.

@jakarta.validation.constraints.Size(max = 100)@jakarta.validation.constraints.Size(max = 10)@jakarta.validation.constraints.Size(min = 0, max = 5)@jakarta.validation.constraints.Size(min = 1, max = 1000)@jakarta.validation.constraints.Size(min = 1, max = 999)@jakarta.validation.constraints.Size(max = 10) @io.micronaut.validation.annotati@jakarta.validation.constraints.Size(min = 1, max = 10)

Providers publishing it

All 1.

oracle

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.