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

  description: "Ensure there are no sibling nodes next to $ref properties"
  type: "validation"
  recommended: true
  severity: "error"
  given: "$"
    function: "refSiblings"

The function is used by the no-$ref-siblings Rule

View Function Source