Punchh API Rules

# authorship: generated by API Evangelist tooling. Stamped 2026-08-18
# on the file's own generator header (roadmap#64). An unmarked file is
# NOT assumed to be ours -- absence of evidence was never stamped.
x-method: generated
# punchh — 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: 4/4 servers on punchh.com
#   - query-params-casing: snake @ 100% (n=9)
#   - operationid-casing: camel @ 100% (n=17)
#   - schema-names-casing: pascal @ 100% (n=15)
#   - schema-properties-casing: snake @ 100% (n=68)
#   - operation-security-required: 17/17 ops declare per-op security
#   - operation-documents-401: 94% adherence
#   - pagination params observed: ['page', 'per_page']
#   - merge: kept 31 existing, added 6 measured, upgraded 0
#   - added: servers-expected-domain, query-params-casing, schema-names-casing, schema-properties-casing, operation-security-required, no-empty-descriptions
extends:
  - spectral:oas
rules:
  info-title-prefix:
    description: API title should be prefixed with "PAR Punchh".
    severity: warn
    given: $.info.title
    then:
      function: pattern
      functionOptions:
        match: ^PAR Punchh
  info-description-required:
    description: Info object must have a meaningful description.
    severity: warn
    given: $.info
    then:
      field: description
      function: truthy
  info-version-required:
    description: Info object must declare a version.
    severity: error
    given: $.info
    then:
      field: version
      function: truthy
  info-contact-required:
    description: Info object should include contact details.
    severity: info
    given: $.info
    then:
      field: contact
      function: truthy
  openapi-version-3:
    description: Specs must target OpenAPI 3.0.x.
    severity: warn
    given: $.openapi
    then:
      function: pattern
      functionOptions:
        match: ^3\.0\.
  servers-defined:
    description: Servers must be defined.
    severity: error
    given: $
    then:
      field: servers
      function: truthy
  server-https:
    description: Server URLs must use HTTPS.
    severity: warn
    given: $.servers[*].url
    then:
      function: pattern
      functionOptions:
        match: ^https://
  server-description:
    description: Each server should have a description.
    severity: info
    given: $.servers[*]
    then:
      field: description
      function: truthy
  path-no-trailing-slash:
    description: Paths must not end with a trailing slash.
    severity: warn
    given: $.paths[*]~
    then:
      function: pattern
      functionOptions:
        notMatch: .+/$
  path-snake-case-segments:
    description: Static path segments use snake_case (matching Punchh path style).
    severity: info
    given: $.paths[*]~
    then:
      function: pattern
      functionOptions:
        match: ^(/[a-z0-9_{}]+)+$
  operation-operationId-required:
    description: Every operation must have an operationId.
    severity: error
    given: $.paths[*][get,post,put,delete,patch]
    then:
      field: operationId
      function: truthy
  operation-operationId-camel-case:
    description: operationId should be camelCase.
    severity: warn
    given: $.paths[*][get,post,put,delete,patch].operationId
    then:
      function: pattern
      functionOptions:
        match: ^[a-z][a-zA-Z0-9]*$
  operation-summary-required:
    description: Every operation must have a summary.
    severity: warn
    given: $.paths[*][get,post,put,delete,patch]
    then:
      field: summary
      function: truthy
  operation-summary-title-case:
    description: Operation summaries should be Title Case.
    severity: info
    given: $.paths[*][get,post,put,delete,patch].summary
    then:
      function: pattern
      functionOptions:
        match: ^[A-Z]
  operation-description-required:
    description: Every operation must have a description.
    severity: warn
    given: $.paths[*][get,post,put,delete,patch]
    then:
      field: description
      function: truthy
  operation-tags-required:
    description: Every operation must be tagged.
    severity: warn
    given: $.paths[*][get,post,put,delete,patch]
    then:
      field: tags
      function: truthy
  operation-microcks-extension:
    description: Each operation should carry an x-microcks-operation extension for mocking.
    severity: info
    given: $.paths[*][get,post,put,delete,patch]
    then:
      field: x-microcks-operation
      function: truthy
  tags-global-defined:
    description: A global tags array should be defined.
    severity: info
    given: $
    then:
      field: tags
      function: truthy
  tag-description:
    description: Each global tag should have a description.
    severity: info
    given: $.tags[*]
    then:
      field: description
      function: truthy
  tag-title-case:
    description: Tag names should be Title Case.
    severity: info
    given: $.tags[*].name
    then:
      function: pattern
      functionOptions:
        match: ^[A-Z]
  parameter-description-required:
    description: Every parameter must have a description.
    severity: warn
    given: $.paths[*][*].parameters[*]
    then:
      field: description
      function: truthy
  parameter-snake-case:
    description: Parameter names should be snake_case.
    severity: warn
    given: $.paths[*][*].parameters[*].name
    then:
      function: pattern
      functionOptions:
        match: ^[a-z][a-z0-9_]*$
  parameter-schema-type:
    description: Every parameter must declare a schema type.
    severity: warn
    given: $.paths[*][*].parameters[*].schema
    then:
      field: type
      function: truthy
  request-body-json:
    description: Request bodies should offer application/json content.
    severity: info
    given: $.paths[*][post,put,patch].requestBody.content
    then:
      field: application/json
      function: truthy
  response-success-defined:
    description: Each operation must define a 2xx success response.
    severity: warn
    given: $.paths[*][get,post,put,delete,patch].responses
    then:
      field: '200'
      function: truthy
  response-unauthorized:
    description: Authenticated operations should document a 401 response.
    severity: info
    given: $.paths[*][get,post,put,delete,patch].responses
    then:
      field: '401'
      function: truthy
  response-description-required:
    description: Every response must have a description.
    severity: warn
    given: $.paths[*][*].responses[*]
    then:
      field: description
      function: truthy
  schema-property-snake-case:
    description: Schema property names should be snake_case.
    severity: warn
    given: $.components.schemas[*].properties[*]~
    then:
      function: pattern
      functionOptions:
        match: ^[a-z][a-z0-9_]*$
  schema-type-defined:
    description: Component schemas should declare a type.
    severity: warn
    given: $.components.schemas[*]
    then:
      field: type
      function: truthy
  security-schemes-defined:
    description: Security schemes must be defined in components.
    severity: warn
    given: $.components
    then:
      field: securitySchemes
      function: truthy
  security-scheme-description:
    description: Each security scheme should be described.
    severity: info
    given: $.components.securitySchemes[*]
    then:
      field: description
      function: truthy
  servers-expected-domain:
    description: Server URLs should be on the punchh.com domain.
    severity: warn
    given: $.servers[*].url
    then:
      function: pattern
      functionOptions:
        match: punchh\.com
  query-params-casing:
    description: Query parameters should be snake_case (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: 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 snake_case (the dominant convention in this API).
    severity: warn
    given: $.components.schemas[*].properties
    then:
      field: '@key'
      function: casing
      functionOptions:
        type: snake
  operation-security-required:
    description: Every operation should declare its security requirements.
    severity: warn
    given: $.paths[*][get,post,put,patch,delete]
    then:
      field: security
      function: truthy
  no-empty-descriptions:
    description: Descriptions must not be empty strings.
    severity: warn
    given: $..description
    then:
      function: truthy