Amdocs API Rules

# amdocs — 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)
#   - servers-expected-domain: 1/1 servers on amdocs-dbs.com
#   - path-params-casing: camel @ 100% (n=5)
#   - query-params-casing: snake @ 50% (n=10)
#   - operationid-casing: camel @ 100% (n=8)
#   - schema-names-casing: pascal @ 100% (n=15)
#   - schema-properties-casing: camel @ 51% (n=76)
#   - security: global (root) — NOT emitting operation-security-required
#   - error-schema-defined: Error
#   - pagination params observed: ['page', 'pageSize']
#   - merge: kept 21 existing, added 6 measured, upgraded 0
#   - added: servers-expected-domain, path-params-casing, query-params-casing, schema-names-casing, schema-properties-casing, error-schema-defined
extends:
  - spectral:oas
rules:
  info-title-prefix:
    description: API title must start with "Amdocs"
    severity: warn
    given: $.info.title
    then:
      function: pattern
      functionOptions:
        match: ^Amdocs
  info-description-required:
    description: API must have a description
    severity: error
    given: $.info
    then:
      field: description
      function: truthy
  info-version-required:
    description: API must have a version
    severity: error
    given: $.info
    then:
      field: version
      function: truthy
  openapi-version-3:
    description: Use OpenAPI 3.x
    severity: warn
    given: $.openapi
    then:
      function: pattern
      functionOptions:
        match: ^3\.
  servers-defined:
    description: At least one server must be defined
    severity: error
    given: $
    then:
      field: servers
      function: truthy
  servers-https:
    description: Server URLs must use HTTPS
    severity: error
    given: $.servers[*].url
    then:
      function: pattern
      functionOptions:
        match: ^https://
  paths-kebab-case:
    description: Path segments should use kebab-case
    severity: warn
    given: $.paths[*]~
    then:
      function: pattern
      functionOptions:
        match: ^(\/([a-z0-9-]+|\{[a-zA-Z]+\}))*$
  paths-versioned:
    description: Paths should include API version prefix
    severity: info
    given: $.paths[*]~
    then:
      function: pattern
      functionOptions:
        match: ^\/v[0-9]
  operation-summary-required:
    description: Operations must have a summary
    severity: error
    given: $.paths[*][get,post,put,patch,delete]
    then:
      field: summary
      function: truthy
  operation-description-required:
    description: Operations must have a description
    severity: error
    given: $.paths[*][get,post,put,patch,delete]
    then:
      field: description
      function: truthy
  operation-id-required:
    description: Operations must have an operationId
    severity: error
    given: $.paths[*][get,post,put,patch,delete]
    then:
      field: operationId
      function: truthy
  operation-id-camel-case:
    description: operationId must 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:
    description: Operations must have at least one tag
    severity: error
    given: $.paths[*][get,post,put,patch,delete]
    then:
      field: tags
      function: truthy
  parameter-description-required:
    description: Parameters must have a description
    severity: warn
    given: $.paths[*][get,post,put,patch,delete].parameters[*]
    then:
      field: description
      function: truthy
  response-success-required:
    description: Operations must have a success response
    severity: error
    given: $.paths[*][get,post,put,patch,delete].responses
    then:
      function: schema
      functionOptions:
        schema:
          type: object
          anyOf:
          - required:
            - '200'
          - required:
            - '201'
          - required:
            - '204'
  response-401-required:
    description: Operations should define 401 Unauthorized
    severity: warn
    given: $.paths[*][get,post,put,patch,delete].responses
    then:
      function: schema
      functionOptions:
        schema:
          type: object
          required:
          - '401'
  response-description-required:
    description: Response objects must have a description
    severity: error
    given: $.paths[*][get,post,put,patch,delete].responses[*]
    then:
      field: description
      function: truthy
  schema-description-required:
    description: Component schemas should have a description
    severity: warn
    given: $.components.schemas[*]
    then:
      field: description
      function: truthy
  security-oauth2:
    description: APIs should use OAuth 2.0 security scheme
    severity: info
    given: $.components.securitySchemes[*]
    then:
      field: type
      function: pattern
      functionOptions:
        match: ^oauth2$
  get-no-request-body:
    description: GET operations must not have a request body
    severity: error
    given: $.paths[*].get
    then:
      field: requestBody
      function: falsy
  no-empty-descriptions:
    description: Descriptions must not be empty
    severity: error
    given: $..description
    then:
      function: pattern
      functionOptions:
        match: .+
  servers-expected-domain:
    description: Server URLs should be on the amdocs-dbs.com domain.
    severity: warn
    given: $.servers[*].url
    then:
      function: pattern
      functionOptions:
        match: amdocs\-dbs\.com
  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 snake_case (the dominant convention in this API).
    severity: info
    given: $.paths[*][get,post,put,patch,delete].parameters[?(@.in=='query')]
    then:
      field: name
      function: casing
      functionOptions:
        type: snake
  schema-names-casing:
    description: Component schema names should be PascalCase (the dominant convention in this API).
    severity: warn
    given: $.components.schemas
    then:
      field: '@key'
      function: casing
      functionOptions:
        type: pascal
  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: casing
      functionOptions:
        type: camel
  error-schema-defined:
    description: A shared error schema (Error) should be defined for error payloads.
    severity: warn
    given: $.components.schemas
    then:
      field: Error
      function: truthy