Architecture Pattern API Rules

# architecture-pattern — 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 apievangelist.com
#   - query-params-casing: snake @ 80% (n=5)
#   - operationid-casing: camel @ 100% (n=5)
#   - schema-names-casing: pascal @ 100% (n=6)
#   - schema-properties-casing: snake @ 84% (n=32)
#   - pagination params observed: ['limit', 'offset']
#   - merge: kept 12 existing, added 7 measured, upgraded 0
#   - added: servers-https-only, servers-expected-domain, query-params-casing, operationid-casing, schema-names-casing, schema-properties-casing, no-empty-descriptions
extends:
  - spectral:oas
rules:
  ap-pattern-id-required:
    description: Pattern must have an id field
    message: Pattern object must have an id property
    severity: error
    given: $.components.schemas.Pattern.properties
    then:
      field: id
      function: truthy
  ap-pattern-name-required:
    description: Pattern must have a name field
    message: Pattern object must have a name property
    severity: error
    given: $.components.schemas.Pattern.properties
    then:
      field: name
      function: truthy
  ap-pattern-problem-required:
    description: Pattern must have a problem statement
    message: Pattern object must have a problem property
    severity: warn
    given: $.components.schemas.Pattern.properties
    then:
      field: problem
      function: truthy
  ap-pattern-solution-required:
    description: Pattern must have a solution description
    message: Pattern object must have a solution property
    severity: warn
    given: $.components.schemas.Pattern.properties
    then:
      field: solution
      function: truthy
  ap-pattern-confidence-enum:
    description: Pattern confidence must be a valid enum value
    message: Pattern confidence must be proven, candidate, or experimental
    severity: error
    given: $.components.schemas.Pattern.properties.confidence
    then:
      field: enum
      function: truthy
  ap-tradeoff-severity-enum:
    description: Tradeoff severity must be a valid enum value
    message: Tradeoff severity must be low, medium, or high
    severity: error
    given: $.components.schemas.Tradeoff.properties.severity
    then:
      field: enum
      function: truthy
  ap-list-responses-have-total:
    description: List responses must include a total count
    message: List schema must include a total property
    severity: warn
    given: $.components.schemas[*List].properties
    then:
      field: total
      function: truthy
  ap-operations-have-tags:
    description: All API operations must have tags
    message: Operation must include at least one tag
    severity: warn
    given: $.paths[*][get,post,put,patch,delete]
    then:
      field: tags
      function: truthy
  ap-operations-have-summary:
    description: All API operations must have a summary
    message: Operation must include a summary
    severity: error
    given: $.paths[*][get,post,put,patch,delete]
    then:
      field: summary
      function: truthy
  ap-operations-have-operation-id:
    description: All API operations must have an operationId
    message: Operation must include an operationId
    severity: error
    given: $.paths[*][get,post,put,patch,delete]
    then:
      field: operationId
      function: truthy
  ap-info-contact-required:
    description: API info must include contact information
    message: Info object must have a contact field
    severity: warn
    given: $.info
    then:
      field: contact
      function: truthy
  ap-servers-defined:
    description: API must define at least one server
    message: Servers array must be defined
    severity: error
    given: $
    then:
      field: servers
      function: truthy
  servers-https-only:
    description: Server URLs must use HTTPS.
    severity: error
    given: $.servers[*].url
    then:
      function: pattern
      functionOptions:
        match: ^https://
  servers-expected-domain:
    description: Server URLs should be on the apievangelist.com domain.
    severity: warn
    given: $.servers[*].url
    then:
      function: pattern
      functionOptions:
        match: apievangelist\.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
  operationid-casing:
    description: Operation IDs should be camelCase (the dominant convention in this API).
    severity: warn
    given: $.paths[*][get,post,put,patch,delete].operationId
    then:
      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
  no-empty-descriptions:
    description: Descriptions must not be empty strings.
    severity: warn
    given: $..description
    then:
      function: truthy