Akamai API Rules

# akamai — Spectral ruleset (strengthened)
# Plain Spectral. Existing hand-authored rules preserved; measured rules added
# from this provider's own OpenAPI conventions by strengthen_ruleset.py,
# then self-validated against the spec.
#
# Provenance:
#   - servers-https-only: 100% of servers already https (error)
#   - path-params-casing: camel @ 96% (n=909)
#   - query-params-casing: camel @ 88% (n=814)
#   - operationid-casing: kebab @ 100% (n=505)
#   - schema-names-casing: kebab @ 94% (n=96)
#   - schema-properties-casing: camel @ 60% (n=406)
#   - pagination params observed: ['limit', 'offset', 'page', 'pageSize']
#   - merge: kept 21 existing, added 5 measured, upgraded 0
#   - added: path-params-casing, query-params-casing, schema-names-casing, schema-properties-casing, no-empty-descriptions
extends:
  - spectral:oas
rules:
  info-title-akamai-prefix:
    message: API title should start with 'Akamai:'
    severity: warn
    given: $.info.title
    then:
      function: pattern
      functionOptions:
        match: '^Akamai:'
  info-description-required:
    message: API info must have a description
    severity: error
    given: $.info
    then:
      field: description
      function: truthy
  info-version-required:
    message: API info must have a version
    severity: error
    given: $.info
    then:
      field: version
      function: truthy
  openapi-version-3:
    message: Must use OpenAPI 3.x
    severity: error
    given: $
    then:
      field: openapi
      function: pattern
      functionOptions:
        match: ^3\.
  servers-defined:
    message: Servers must be defined
    severity: error
    given: $
    then:
      field: servers
      function: truthy
  servers-https:
    message: Server URLs must use HTTPS
    severity: error
    given: $.servers[*].url
    then:
      function: pattern
      functionOptions:
        match: ^https://
  paths-kebab-case:
    message: Path segments should use kebab-case
    severity: warn
    given: $.paths[*]~
    then:
      function: pattern
      functionOptions:
        match: ^(\/([a-z0-9][a-z0-9\-]*|\{[a-zA-Z][a-zA-Z0-9_]*\}))*$
  paths-no-trailing-slash:
    message: Paths must not have trailing slashes
    severity: error
    given: $.paths[*]~
    then:
      function: pattern
      functionOptions:
        notMatch: \/$
  operation-summary-required:
    message: Every operation must have a summary
    severity: error
    given: $.paths[*][get,post,put,patch,delete]
    then:
      field: summary
      function: truthy
  operation-summary-akamai-prefix:
    message: Operation summaries should start with 'Akamai'
    severity: warn
    given: $.paths[*][get,post,put,patch,delete].summary
    then:
      function: pattern
      functionOptions:
        match: ^Akamai
  operation-description-required:
    message: Every operation must have a description
    severity: warn
    given: $.paths[*][get,post,put,patch,delete]
    then:
      field: description
      function: truthy
  operation-id-required:
    message: Every operation must have an operationId
    severity: error
    given: $.paths[*][get,post,put,patch,delete]
    then:
      field: operationId
      function: truthy
  operation-id-camel-case:
    message: operationId should use camelCase
    severity: warn
    given: $.paths[*][get,post,put,patch,delete].operationId
    then:
      function: pattern
      functionOptions:
        match: ^[a-z][a-zA-Z0-9]*$
  operation-tags-required:
    message: Every operation must have at least one tag
    severity: error
    given: $.paths[*][get,post,put,patch,delete]
    then:
      field: tags
      function: truthy
  operation-external-docs:
    message: Operations should have externalDocs linking to Akamai's documentation
    severity: info
    given: $.paths[*][get,post,put,patch,delete]
    then:
      field: externalDocs
      function: truthy
  parameter-description-required:
    message: All parameters must have a description
    severity: warn
    given: $.paths[*][get,post,put,patch,delete][*].parameters[*]
    then:
      field: description
      function: truthy
  response-description-required:
    message: All responses must have a description
    severity: error
    given: $.paths[*][*].responses[*]
    then:
      field: description
      function: truthy
  get-no-request-body:
    message: GET operations must not have a request body
    severity: error
    given: $.paths[*].get
    then:
      field: requestBody
      function: falsy
  delete-returns-no-content:
    message: DELETE operations should return 204 No Content
    severity: info
    given: $.paths[*].delete.responses
    then:
      field: '204'
      function: truthy
  security-schemes-defined:
    message: Security schemes should be defined
    severity: info
    given: $.components
    then:
      field: securitySchemes
      function: truthy
  tags-global-defined:
    message: Global tags array should be defined
    severity: info
    given: $
    then:
      field: tags
      function: truthy
  path-params-casing:
    description: Path parameters should be camelCase (the dominant convention in this API).
    severity: warn
    given: $.paths[*].parameters[?(@.in=='path')].name
    then:
      function: casing
      functionOptions:
        type: camel
  query-params-casing:
    description: Query parameters should be camelCase (the dominant convention in this API).
    severity: warn
    given: $.paths[*][get,post,put,patch,delete].parameters[?(@.in=='query')]
    then:
      field: name
      function: casing
      functionOptions:
        type: camel
  schema-names-casing:
    description: Component schema names should be kebab-case (the dominant convention in this API).
    severity: warn
    given: $.components.schemas
    then:
      field: '@key'
      function: casing
      functionOptions:
        type: kebab
  schema-properties-casing:
    description: Schema properties should be camelCase (the dominant convention in this API).
    severity: info
    given: $.components.schemas[*].properties
    then:
      field: '@key'
      function: pattern
      functionOptions:
        match: ^[a-z][A-Za-z0-9]*$
  no-empty-descriptions:
    description: Descriptions must not be empty strings.
    severity: warn
    given: $..description
    then:
      function: truthy