formats:
  - oas3
rules:
  udem-info-title-present:
    description: API info.title must be present.
    severity: error
    given: $.info
    then:
      field: title
      function: truthy
  udem-info-version-present:
    description: API info.version must be present (Borealis/Dataverse reports a semantic version).
    severity: error
    given: $.info
    then:
      field: version
      function: truthy
  udem-operations-have-tags:
    description: Every operation should carry at least one tag, as the Dataverse API groups operations by tag.
    severity: warn
    given: $.paths[*][get,put,post,delete,patch]
    then:
      field: tags
      function: truthy
  udem-paths-kebab-or-segment:
    description: Path segments should not contain underscores or uppercase, matching observed Dataverse path style.
    severity: warn
    given: $.paths
    then:
      field: "@key"
      function: pattern
      functionOptions:
        notMatch: "[A-Z_]"
  udem-responses-json:
    description: Operations should declare JSON responses; the Borealis API returns application/json envelopes.
    severity: warn
    given: $.paths[*][get,post,put,delete,patch].responses[*].content
    then:
      field: application/json
      function: truthy