ui-name-duplicates

Forbids the same literal path segment from appearing more than once in a path.

Attribute	Value
Category	Metadata
Maturity	Gold
OpenAPI	Swagger 2.0; OpenAPI 3.0, 3.1, 3.2
Starter	Off
Lenient–Strict	Warning
Complete	Error

Intent

Remove redundant resource names that make URLs harder to read.

Flags

Repeated literal segments, compared case-insensitively. Path-parameter segments are ignored.

Does not flag

/accounts/{accountId}/payments/{paymentId} because the literal names are unique and parameter placeholders are ignored.

See it fail

paths:
  /accounts/{accountId}/accounts:
    get:
      responses:
        '200':
          description: OK

Diagnostic: Path `/accounts/{accountId}/accounts` should not repeat URI names.

Fix it

paths:
  /accounts/{accountId}/related-accounts:
    get:
      responses:
        '200':
          description: OK

Configure

profiles:
  default:
    rules:
      extends: [recommended]
      override:
        ui-name-duplicates: warn

Nearby: no-http-verbs-in-paths, path-parameters-on-path-only.