Microsoft Skype API Rules

# authorship: generated by API Evangelist tooling (derive-rules.py, 2026-11-04). x-method: generated
# Every rule below was MEASURED against Microsoft Skype's own contract before it was written; a rule is present only
# when the contract satisfies it at 80% or more. Severity: 100% -> error, >= 90% -> warn, else info.
# Provenance:
#   - operation-has-operationid: 100%
#   - operation-has-summary: 100%
#   - operation-has-tags: 100%
#   - operation-has-success-response: 100%
#   - operation-declares-4xx: 100%
#   - operation-declares-401-or-403: 95%
#   - path-segment-casing-camel: 86%
#   - path-no-trailing-slash: 100%
#   - list-pagination-parameter: 100%
#   - info-has-description: 100%
#   - info-title-present: 100%
#   - info-description-present: 100%
#   - info-version-present: 100%
#   - info-version-semver: 100%
#   - operation-tags-present: 100%
#   - operation-summary-present: 100%
#   - operation-summary-min-length: 95%
#   - operation-operationid-present: 100%
#   - operation-parameters-present: 100%
#   - operation-responses-present: 100%
#   - parameter-name-present: 100%
#   - parameter-name-casing-camel: 84%
#   - parameter-in-present: 100%
#   - parameter-in-values: 98%
#   - parameter-description-present: 93%
#   - parameter-description-min-length: 100%
#   - response-description-present: 100%
#   - response-description-min-length: 100%
x-method: generated
x-generator: derive-rules.py
x-generated: '2026-11-04'
x-source:
- openapi/microsoft-skype-chat-openapi.yml
- openapi/microsoft-skype-sms-openapi.yml
x-self-check:
  status: checked
  rules: 28
  dropped: {}
extends:
- - spectral:oas
  - recommended
formats:
- oas3
rules:
  operation-has-operationid:
    description: 'Every operation declares an operationId (measured: 100% of this contract)'
    severity: error
    given: $.paths[*][get,post,put,patch,delete]
    then:
      field: operationId
      function: truthy
    x-pattern-key: Operation.operationId|present
  operation-has-summary:
    description: 'Every operation has a summary (measured: 100% of this contract)'
    severity: error
    given: $.paths[*][get,post,put,patch,delete]
    then:
      field: summary
      function: truthy
    x-pattern-key: Operation.summary|present
  operation-has-tags:
    description: 'Every operation is tagged (measured: 100% of this contract)'
    severity: error
    given: $.paths[*][get,post,put,patch,delete]
    then:
      field: tags
      function: truthy
    x-pattern-key: Operation.tags|present
  operation-has-success-response:
    description: 'Every operation declares a 2xx response (measured: 100% of this contract)'
    severity: error
    given: $.paths[*][get,post,put,patch,delete].responses
    then:
      function: schema
      functionOptions:
        schema:
          type: object
          patternProperties:
            ^2\d\d$: {}
          minProperties: 1
    x-pattern-key: Operation.responses|schema:07e20b47
  operation-declares-4xx:
    description: 'Every operation declares at least one 4xx response (measured: 100% of this contract)'
    severity: error
    given: $.paths[*][get,post,put,patch,delete].responses
    then:
      function: schema
      functionOptions:
        schema:
          type: object
          patternProperties:
            ^4\d\d$: {}
          minProperties: 1
    x-pattern-key: Operation.responses|schema:4aea4da4
  operation-declares-401-or-403:
    description: 'Every operation declares 401 or 403 (measured: 95% of this contract)'
    severity: warn
    given: $.paths[*][get,post,put,patch,delete].responses
    then:
      function: schema
      functionOptions:
        schema:
          type: object
          anyOf:
          - required:
            - '401'
          - required:
            - '403'
    x-pattern-key: Operation.responses|schema:f26ae517
  path-segment-casing-camel:
    description: 'Path segments are camel case (measured: 85% of this contract)'
    severity: info
    given: $.paths[*]~
    then:
      function: pattern
      functionOptions:
        match: ^(/[a-z][a-zA-Z0-9]*|/\{[^}]+\})+/?$
    x-pattern-key: Paths.{key}|pattern:^(/[a-z][a-zA-Z0-9]*|/\{[^}]+\})+/?$
  path-no-trailing-slash:
    description: 'Paths carry no trailing slash (measured: 100% of this contract)'
    severity: error
    given: $.paths[*]~
    then:
      function: pattern
      functionOptions:
        notMatch: ./$
    x-pattern-key: Paths.{key}|pattern:!./$
  list-pagination-parameter:
    description: 'Collection GETs take the `maxPageSize` pagination parameter (measured: 100% of this contract)'
    severity: error
    given: $.paths[?(@property.match(/[^}]$/))].get
    then:
      field: parameters
      function: schema
      functionOptions:
        schema:
          type: array
          contains:
            type: object
            properties:
              name:
                const: maxPageSize
            required:
            - name
  info-has-description:
    description: 'The contract''s info block carries a description (measured: 100% of this contract)'
    severity: error
    given: $.info
    then:
      field: description
      function: truthy
    x-pattern-key: Info.description|present
  info-title-present:
    description: 'Info declares title (measured: 100% of this contract)'
    severity: error
    given: $.info
    then:
      field: title
      function: defined
    x-pattern-key: Info.title|present
  info-description-present:
    description: 'Info declares description (measured: 100% of this contract)'
    severity: error
    given: $.info
    then:
      field: description
      function: defined
    x-pattern-key: Info.description|present
  info-version-present:
    description: 'Info declares version (measured: 100% of this contract)'
    severity: error
    given: $.info
    then:
      field: version
      function: defined
    x-pattern-key: Info.version|present
  info-version-semver:
    description: 'info.version is numeric (measured: 100% of this contract)'
    severity: error
    given: $.info.version
    then:
      function: pattern
      functionOptions:
        match: ^v?\d+(\.\d+)*
    x-pattern-key: Info.version|pattern:^v?\d+(\.\d+)*
  operation-tags-present:
    description: 'Operation declares tags (measured: 100% of this contract)'
    severity: error
    given: $.paths[*][get,put,post,delete,patch,options,head,trace]
    then:
      field: tags
      function: defined
    x-pattern-key: Operation.tags|present
  operation-summary-present:
    description: 'Operation declares summary (measured: 100% of this contract)'
    severity: error
    given: $.paths[*][get,put,post,delete,patch,options,head,trace]
    then:
      field: summary
      function: defined
    x-pattern-key: Operation.summary|present
  operation-summary-min-length:
    description: 'Operation.summary runs at least 18 characters (measured: 95% of this contract)'
    severity: warn
    given: $.paths[*][get,put,post,delete,patch,options,head,trace].summary
    then:
      function: length
      functionOptions:
        min: 18
    x-pattern-key: Operation.summary|length
  operation-operationid-present:
    description: 'Operation declares operationId (measured: 100% of this contract)'
    severity: error
    given: $.paths[*][get,put,post,delete,patch,options,head,trace]
    then:
      field: operationId
      function: defined
    x-pattern-key: Operation.operationId|present
  operation-parameters-present:
    description: 'Operation declares parameters (measured: 100% of this contract)'
    severity: error
    given: $.paths[*][get,put,post,delete,patch,options,head,trace]
    then:
      field: parameters
      function: defined
    x-pattern-key: Operation.parameters|present
  operation-responses-present:
    description: 'Operation declares responses (measured: 100% of this contract)'
    severity: error
    given: $.paths[*][get,put,post,delete,patch,options,head,trace]
    then:
      field: responses
      function: defined
    x-pattern-key: Operation.responses|present
  parameter-name-present:
    description: 'Parameter declares name (measured: 100% of this contract)'
    severity: error
    given: $.paths[*][get,put,post,delete,patch,options,head,trace].parameters[*]
    then:
      field: name
      function: defined
    x-pattern-key: Parameter.name|present
  parameter-name-casing-camel:
    description: 'Parameter.name is camel case (measured: 84% of this contract)'
    severity: info
    given: $.paths[*][get,put,post,delete,patch,options,head,trace].parameters[*].name
    then:
      function: pattern
      functionOptions:
        match: ^[a-z][a-zA-Z0-9]*$
    x-pattern-key: Parameter.name|pattern:^[a-z][a-zA-Z0-9]*$
  parameter-in-present:
    description: 'Parameter declares in (measured: 100% of this contract)'
    severity: error
    given: $.paths[*][get,put,post,delete,patch,options,head,trace].parameters[*]
    then:
      field: in
      function: defined
    x-pattern-key: Parameter.in|present
  parameter-in-values:
    description: 'Parameter.in is one of body, path, query (measured: 97% of this contract)'
    severity: warn
    given: $.paths[*][get,put,post,delete,patch,options,head,trace].parameters[*].in
    then:
      function: enumeration
      functionOptions:
        values:
        - body
        - path
        - query
    x-pattern-key: Parameter.in|enum:body,path,query
  parameter-description-present:
    description: 'Parameter declares description (measured: 93% of this contract)'
    severity: warn
    given: $.paths[*][get,put,post,delete,patch,options,head,trace].parameters[*]
    then:
      field: description
      function: defined
    x-pattern-key: Parameter.description|present
  parameter-description-min-length:
    description: 'Parameter.description runs at least 15 characters (measured: 100% of this contract)'
    severity: error
    given: $.paths[*][get,put,post,delete,patch,options,head,trace].parameters[*].description
    then:
      function: length
      functionOptions:
        min: 15
    x-pattern-key: Parameter.description|length
  response-description-present:
    description: 'Response declares description (measured: 100% of this contract)'
    severity: error
    given: $.paths[*][get,put,post,delete,patch,options,head,trace].responses[*]
    then:
      field: description
      function: defined
    x-pattern-key: Response.description|present
  response-description-min-length:
    description: 'Response.description runs at least 7 characters (measured: 100% of this contract)'
    severity: error
    given: $.paths[*][get,put,post,delete,patch,options,head,trace].responses[*].description
    then:
      function: length
      functionOptions:
        min: 7
    x-pattern-key: Response.description|length