AWS App Mesh API Rules

# aws-app-mesh — 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: 50% of servers already https (warn)
#   - path-params-casing: camel @ 100% (n=61)
#   - query-params-casing: camel @ 84% (n=50)
#   - operationid-casing: pascal @ 100% (n=38)
#   - schema-names-casing: pascal @ 100% (n=333)
#   - schema-properties-casing: snake @ 54% (n=476)
#   - security: global (root) — NOT emitting operation-security-required
#   - error-schema-defined: InternalServerErrorException
#   - pagination params observed: ['limit', 'nextToken']
#   - merge: kept 19 existing, added 6 measured, upgraded 0
#   - added: path-params-casing, query-params-casing, schema-names-casing, schema-properties-casing, security-schemes-defined, error-schema-defined
extends:
  - spectral:oas
rules:
  info-title-prefix:
    description: API title must start with "AWS App Mesh"
    severity: warn
    given: $.info.title
    then:
      function: pattern
      functionOptions:
        match: ^AWS App Mesh
  info-description-required:
    description: Info object must have a description
    severity: error
    given: $.info
    then:
      field: description
      function: truthy
  info-version-required:
    description: Info object must have a version
    severity: error
    given: $.info
    then:
      field: version
      function: truthy
  openapi-version-3:
    description: All specs must use OpenAPI 3.x
    severity: error
    given: $
    then:
      field: openapi
      function: pattern
      functionOptions:
        match: ^3\.
  servers-defined:
    description: Servers array must be defined
    severity: error
    given: $
    then:
      field: servers
      function: truthy
  servers-https:
    description: All server URLs must use HTTPS
    severity: error
    given: $.servers[*].url
    then:
      function: pattern
      functionOptions:
        match: ^https://
  operation-summary-required:
    description: Every operation must have a summary
    severity: error
    given: $.paths[*][get,post,put,patch,delete]
    then:
      field: summary
      function: truthy
  operation-summary-prefix:
    description: Operation summaries must start with "AWS App Mesh"
    severity: warn
    given: $.paths[*][get,post,put,patch,delete].summary
    then:
      function: pattern
      functionOptions:
        match: ^AWS App Mesh
  operation-description-required:
    description: Every operation must have a description
    severity: error
    given: $.paths[*][get,post,put,patch,delete]
    then:
      field: description
      function: truthy
  operation-id-required:
    description: Every operation must have an operationId
    severity: error
    given: $.paths[*][get,post,put,patch,delete]
    then:
      field: operationId
      function: truthy
  operation-id-pascal-case:
    description: OperationIds should use PascalCase
    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: Every operation must have at least one tag
    severity: warn
    given: $.paths[*][get,post,put,patch,delete]
    then:
      field: tags
      function: truthy
  parameter-description-required:
    description: All parameters must have descriptions
    severity: warn
    given: $.paths[*][*].parameters[*]
    then:
      field: description
      function: truthy
  response-description-required:
    description: All responses must have descriptions
    severity: error
    given: $.paths[*][*].responses[*]
    then:
      field: description
      function: truthy
  schema-description:
    description: Component schemas should have descriptions
    severity: warn
    given: $.components.schemas[*]
    then:
      field: description
      function: truthy
  security-schemes-defined:
    description: Security schemes should be defined in components.
    severity: warn
    given: $.components
    then:
      field: securitySchemes
      function: truthy
  method-get-no-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: .+
  deprecation-documented:
    description: Deprecated operations should have a description
    severity: warn
    given: $.paths[*][*][?(@.deprecated == true)]
    then:
      field: description
      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 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: info
    given: $.components.schemas[*].properties
    then:
      field: '@key'
      function: casing
      functionOptions:
        type: snake
  error-schema-defined:
    description: A shared error schema (InternalServerErrorException) should be defined for error payloads.
    severity: warn
    given: $.components.schemas
    then:
      field: InternalServerErrorException
      function: truthy