refSiblings
refSiblings checks every $ref in the specification to ensure that it’s a lone child node, and does not
contain and siblings.
OpenAPI ignores everything but the ref. This is a problem because JSON Schema allows sibling nodes.
Example ruleset configuration
no-$ref-sibling:
description: "Ensure there are no sibling nodes next to $ref properties"
type: "validation"
recommended: true
severity: "error"
given: "$"
then:
function: "refSiblings"
The function is used by the no-$ref-siblings Rule