`no-duplicate-enum-values`

Finds repeated values in a schema's enum array.

Intent

Duplicate members add noise, can produce duplicate generated constants, and communicate no additional valid state.

Every occurrence of an enum value after its first appearance. Values are compared by their JSON representation, so type remains significant.

The first occurrence of a value or an enum whose members are unique.

Status:
  type: string
  enum: [active, pending, active]

The second active entry is reported.

Status:
  type: string
  enum: [active, pending]

profiles:
  default:
    rules:
      extends: [recommended]
      override:
        no-duplicate-enum-values: error

Nearby: enum-value-schema-mismatch, enum-no-matching-values.