BFE API Rules

# bfe — 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:
#   - operationid-casing: camel @ 100% (n=7)
#   - schema-names-casing: pascal @ 100% (n=6)
#   - schema-properties-casing: snake @ 100% (n=10)
#   - error-schema-defined: ErrorResponse
#   - merge: kept 22 existing, added 3 measured, upgraded 0
#   - added: schema-names-casing, schema-properties-casing, error-schema-defined
extends:
  - spectral:oas
rules:
  info-title-required:
    description: API info must have a title.
    severity: error
    given: $.info
    then:
      field: title
      function: truthy
  info-title-prefix:
    description: API title should begin with "BFE".
    severity: warn
    given: $.info.title
    then:
      function: pattern
      functionOptions:
        match: ^BFE
  info-description-required:
    description: API info must have a description.
    severity: error
    given: $.info
    then:
      field: description
      function: truthy
  info-version-required:
    description: API info must have a version.
    severity: error
    given: $.info
    then:
      field: version
      function: truthy
  openapi-version-3:
    description: All specs must use OpenAPI 3.0.x.
    severity: error
    given: $
    then:
      field: openapi
      function: pattern
      functionOptions:
        match: ^3\.0\.
  servers-defined:
    description: At least one server must be defined.
    severity: error
    given: $
    then:
      field: servers
      function: truthy
  servers-localhost-or-http:
    description: BFE management API may use localhost (HTTP) for internal endpoints.
    severity: info
    given: $.servers[*].url
    then:
      function: pattern
      functionOptions:
        match: ^(http|https)://
  paths-kebab-case:
    description: Path segments should use kebab-case (lowercase with hyphens).
    severity: warn
    given: $.paths[*]~
    then:
      function: pattern
      functionOptions:
        match: ^(/[a-z0-9{}_-]+)+$
  paths-no-trailing-slash:
    description: Paths must not have a trailing slash.
    severity: error
    given: $.paths[*]~
    then:
      function: pattern
      functionOptions:
        notMatch: /$
  operation-summary-required:
    description: All operations must have a summary.
    severity: error
    given: $.paths[*][get,post,put,patch,delete,options,head]
    then:
      field: summary
      function: truthy
  operation-description-required:
    description: All operations must have a description.
    severity: error
    given: $.paths[*][get,post,put,patch,delete,options,head]
    then:
      field: description
      function: truthy
  operation-id-required:
    description: All operations must have an operationId.
    severity: error
    given: $.paths[*][get,post,put,patch,delete,options,head]
    then:
      field: operationId
      function: truthy
  operation-id-camel-case:
    description: 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:
    description: All operations must have at least one tag.
    severity: error
    given: $.paths[*][get,post,put,patch,delete,options,head]
    then:
      field: tags
      function: truthy
  parameter-description-required:
    description: All 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 define at least one 2xx success response.
    severity: error
    given: $.paths[*][get,post,put,patch,delete].responses
    then:
      function: schema
      functionOptions:
        schema:
          oneOf:
          - required:
            - '200'
          - required:
            - '201'
          - required:
            - '204'
  response-description-required:
    description: All responses must have a description.
    severity: error
    given: $.paths[*][get,post,put,patch,delete].responses[*]
    then:
      field: description
      function: truthy
  response-json-content:
    description: Success responses should return application/json content.
    severity: warn
    given: $.paths[*][get,post,put,patch,delete].responses['200','201'].content
    then:
      function: truthy
  schema-description-required:
    description: Top-level schemas should have a description.
    severity: warn
    given: $.components.schemas[*]
    then:
      field: description
      function: truthy
  schema-type-required:
    description: Schema definitions should have an explicit type.
    severity: warn
    given: $.components.schemas[*]
    then:
      field: type
      function: truthy
  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 strings.
    severity: warn
    given: $..description
    then:
      function: pattern
      functionOptions:
        match: .+
  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 snake_case (the dominant convention in this API).
    severity: warn
    given: $.components.schemas[*].properties
    then:
      field: '@key'
      function: casing
      functionOptions:
        type: snake
  error-schema-defined:
    description: A shared error schema (ErrorResponse) should be defined for error payloads.
    severity: warn
    given: $.components.schemas
    then:
      field: ErrorResponse
      function: truthy