7shifts API Rules

# 7shifts — 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 7shifts.com
#   - path-params-casing: snake @ 100% (n=39)
#   - query-params-casing: snake @ 92% (n=52)
#   - operationid-casing: camel @ 100% (n=33)
#   - schema-names-casing: pascal @ 100% (n=16)
#   - schema-properties-casing: snake @ 100% (n=127)
#   - operation-security-required: 32/33 ops declare per-op security
#   - pagination params observed: ['cursor', 'limit']
#   - merge: kept 35 existing, added 6 measured, upgraded 0
#   - added: path-params-casing, query-params-casing, schema-names-casing, schema-properties-casing, operation-security-required, no-empty-descriptions
extends:
  - spectral:oas
rules:
  info-title-required:
    description: API must have a title.
    given: $.info
    severity: error
    then:
      field: title
      function: truthy
  info-title-prefix:
    description: Title should start with "7shifts".
    given: $.info.title
    severity: warn
    then:
      function: pattern
      functionOptions:
        match: ^7shifts
  info-description-required:
    description: API must have a non-trivial description.
    given: $.info
    severity: warn
    then:
      field: description
      function: truthy
  info-version-required:
    description: API must declare a version.
    given: $.info
    severity: error
    then:
      field: version
      function: truthy
  info-contact-required:
    description: API should provide contact information.
    given: $.info
    severity: info
    then:
      field: contact
      function: truthy
  openapi-version-3-1:
    description: Specs should target OpenAPI 3.1.x.
    given: $.openapi
    severity: warn
    then:
      function: pattern
      functionOptions:
        match: ^3\.1\.
  servers-defined:
    description: At least one server must be defined.
    given: $.servers
    severity: error
    then:
      function: length
      functionOptions:
        min: 1
  servers-https:
    description: Server URLs must use HTTPS.
    given: $.servers[*].url
    severity: error
    then:
      function: pattern
      functionOptions:
        match: ^https://
  server-7shifts-host:
    description: Production server should be api.7shifts.com.
    given: $.servers[*].url
    severity: info
    then:
      function: pattern
      functionOptions:
        match: api\.7shifts\.com
  paths-version-prefix:
    description: Resource paths should be versioned under /v2 (OAuth token is the exception).
    given: $.paths[?(@property != '/oauth2/token' && @property != '/whoami')]~
    severity: warn
    then:
      function: pattern
      functionOptions:
        match: ^/v2/
  paths-snake-or-kebab-case:
    description: Path segments must be snake_case or kebab-case (no camelCase or PascalCase).
    given: $.paths[*]~
    severity: warn
    then:
      function: pattern
      functionOptions:
        match: ^(/[a-z0-9_\-]+|/\{[a-z0-9_]+\})*/?$
  paths-no-trailing-slash:
    description: Paths must not end with a trailing slash.
    given: $.paths[*]~
    severity: error
    then:
      function: pattern
      functionOptions:
        notMatch: .+/$
  paths-no-query-string:
    description: Paths must not contain query strings.
    given: $.paths[*]~
    severity: error
    then:
      function: pattern
      functionOptions:
        notMatch: \?
  operation-operationid-required:
    description: Every operation must have an operationId.
    given: $.paths[*][get,post,put,patch,delete]
    severity: error
    then:
      field: operationId
      function: truthy
  operation-operationid-camelcase-verb:
    description: operationId should be camelCase and begin with a verb (list/get/retrieve/create/update/delete/approve/decline).
    given: $.paths[*][get,post,put,patch,delete].operationId
    severity: warn
    then:
      function: pattern
      functionOptions:
        match: ^(list|get|retrieve|create|update|put|delete|approve|decline|sync|test|configure|save|fetch|deactivate)[A-Za-z0-9]*$
  operation-summary-required:
    description: Every operation must have a summary.
    given: $.paths[*][get,post,put,patch,delete]
    severity: warn
    then:
      field: summary
      function: truthy
  operation-summary-title-case:
    description: Operation summaries should be Title Case (each significant word capitalized).
    given: $.paths[*][get,post,put,patch,delete].summary
    severity: info
    then:
      function: pattern
      functionOptions:
        match: ^[A-Z]
  operation-tags-required:
    description: Every operation must be tagged.
    given: $.paths[*][get,post,put,patch,delete]
    severity: warn
    then:
      field: tags
      function: truthy
  global-tags-defined:
    description: A global tags array should be defined.
    given: $
    severity: info
    then:
      field: tags
      function: truthy
  tag-description-required:
    description: Each global tag should have a description.
    given: $.tags[*]
    severity: info
    then:
      field: description
      function: truthy
  tag-title-case:
    description: Tags should be Title Case.
    given: $.tags[*].name
    severity: warn
    then:
      function: pattern
      functionOptions:
        match: ^[A-Z][A-Za-z0-9]*( [A-Z][A-Za-z0-9]*)*$
  parameter-description-required:
    description: Parameters should have descriptions.
    given: $..parameters[*]
    severity: info
    then:
      field: description
      function: truthy
  parameter-snake-case:
    description: Parameter names should be snake_case (filter bracket params like start[gte] permitted).
    given: $..parameters[?(@.in=='query' || @.in=='path')].name
    severity: warn
    then:
      function: pattern
      functionOptions:
        match: ^[a-z][a-z0-9_]*(\[[a-z]+\])?$
  parameter-pagination-cursor:
    description: Collection pagination should use cursor and limit parameters.
    given: $..parameters[?(@.in=='query')].name
    severity: info
    then:
      function: pattern
      functionOptions:
        match: .*
  request-body-json:
    description: Request bodies should accept application/json.
    given: $.paths[*][post,put,patch].requestBody.content
    severity: warn
    then:
      field: application/json
      function: truthy
  response-success-required:
    description: Every operation must define at least one 2xx response.
    given: $.paths[*][get,post,put,patch,delete].responses
    severity: error
    then:
      function: schema
      functionOptions:
        schema:
          type: object
          patternProperties:
            ^2[0-9][0-9]$: {}
          minProperties: 1
  response-description-required:
    description: Responses must have descriptions.
    given: $.paths[*][*].responses[*]
    severity: warn
    then:
      field: description
      function: truthy
  response-auth-errors:
    description: Secured operations should document 401/403 responses.
    given: $.paths[*][get,post,put,patch,delete]
    severity: info
    then:
      function: defined
  schema-property-snake-case:
    description: Schema properties should be snake_case.
    given: $.components.schemas[*].properties[*]~
    severity: warn
    then:
      function: pattern
      functionOptions:
        match: ^[a-z][a-z0-9_]*$|^(in|out)$
  schema-title-required:
    description: Top-level schemas should declare a title.
    given: $.components.schemas[*]
    severity: info
    then:
      field: title
      function: truthy
  schema-types-defined:
    description: Schema properties should declare a type or $ref.
    given: $.components.schemas[*].properties[*]
    severity: info
    then:
      function: defined
  security-schemes-defined:
    description: Security schemes must be defined.
    given: $.components.securitySchemes
    severity: error
    then:
      function: truthy
  security-bearer-present:
    description: A bearer (access token) security scheme should be present.
    given: $.components.securitySchemes
    severity: warn
    then:
      field: bearerAuth
      function: truthy
  get-no-request-body:
    description: GET operations must not declare a request body.
    given: $.paths[*].get
    severity: error
    then:
      field: requestBody
      function: undefined
  delete-no-request-body:
    description: DELETE operations should not declare a request body.
    given: $.paths[*].delete
    severity: warn
    then:
      field: requestBody
      function: undefined
  path-params-casing:
    description: Path parameters should be snake_case (the dominant convention in this API).
    severity: warn
    given: $.paths[*].parameters[?(@.in=='path')].name
    then:
      function: casing
      functionOptions:
        type: snake
  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: $.components.schemas
    then:
      field: '@key'
      function: pattern
      functionOptions:
        match: ^[A-Z][A-Za-z0-9]*$
  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