Unisys · API Governance Rules

Unisys API Rules

Spectral linting rules defining API design standards and conventions for Unisys.

10 Rules error 1 warn 8 info 1

View Rules File View on GitHub

Rule Categories

error no operation operationid schema security servers

Rules

error

servers-https-only

Server URLs must use HTTPS.

$.servers[*].url

warn

operationid-casing

Operation IDs should be camelCase (the dominant convention in this API).

$.paths[*][get,post,put,patch,delete].operationId

warn

schema-names-casing

Component schema names should be PascalCase (the dominant convention in this API).

$.components.schemas

info

schema-properties-casing

Schema properties should be snake_case (the dominant convention in this API).

$.components.schemas[*].properties

warn

security-schemes-defined

Security schemes should be defined in components.

$.components

warn

error-schema-defined

A shared error schema (Error) should be defined for error payloads.

$.components.schemas

warn

operation-documents-400

Operations should document a 400 response (documented on 86% of this API's operations).

$.paths[*][get,post,put,patch,delete].responses

warn

operation-documents-401

Operations should document a 401 response (documented on 100% of this API's operations).

$.paths[*][get,post,put,patch,delete].responses

warn

operation-documents-500

Operations should document a 500 response (documented on 100% of this API's operations).

$.paths[*][get,post,put,patch,delete].responses

warn

no-empty-descriptions

Descriptions must not be empty strings.

$..description

Spectral Ruleset

# unisys — 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)
#   - operationid-casing: camel @ 100% (n=7)
#   - schema-names-casing: pascal @ 100% (n=5)
#   - schema-properties-casing: snake @ 80% (n=15)
#   - security: global (root) — NOT emitting operation-security-required
#   - error-schema-defined: Error
#   - operation-documents-400: 86% adherence
#   - operation-documents-401: 100% adherence
#   - operation-documents-500: 100% adherence
extends:
  - spectral:oas
rules:
  servers-https-only:
    description: Server URLs must use HTTPS.
    severity: error
    given: $.servers[*].url
    then:
      function: pattern
      functionOptions:
        match: ^https://
  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
  security-schemes-defined:
    description: Security schemes should be defined in components.
    severity: warn
    given: $.components
    then:
      field: securitySchemes
      function: truthy
  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
  operation-documents-400:
    description: Operations should document a 400 response (documented on 86% of this API's operations).
    severity: warn
    given: $.paths[*][get,post,put,patch,delete].responses
    then:
      field: '400'
      function: truthy
  operation-documents-401:
    description: Operations should document a 401 response (documented on 100% of this API's operations).
    severity: warn
    given: $.paths[*][get,post,put,patch,delete].responses
    then:
      field: '401'
      function: truthy
  operation-documents-500:
    description: Operations should document a 500 response (documented on 100% of this API's operations).
    severity: warn
    given: $.paths[*][get,post,put,patch,delete].responses
    then:
      field: '500'
      function: truthy
  no-empty-descriptions:
    description: Descriptions must not be empty strings.
    severity: warn
    given: $..description
    then:
      function: truthy