`id-format`

Requires properties named id inside component schemas to have type: string.

Intent

Treating identifiers as strings preserves leading zeros and avoids numeric size limits across clients and platforms.

Any id property under components.schemas whose declared type is not string. A missing type is also reported.

String IDs, differently named properties, or parameters outside component schemas.

components:
  schemas:
    Payment:
      type: object
      properties:
        id:
          type: integer

Diagnostic: Property `id` should be a string.

components:
  schemas:
    Payment:
      type: object
      properties:
        id:
          type: string

profiles:
  default:
    rules:
      extends: [recommended]
      override:
        id-format: error

Nearby: no-numeric-ids.