overlay: 1.0.0
info:
  title: API Evangelist enhancements for the Similarweb Batch API
  version: 1.0.0
extends: openapi/_original/similarweb-batch-api-openapi.yml
x-generated: '2026-08-13'
x-method: generated
x-source: >-
  Derived from the artifacts in this repo (asyncapi/, conventions/, errors/, data-model/)
  against the harvested Batch specification. Applies our annotations without mutating the
  original document.
actions:
- target: $.info
  update:
    x-apievangelist-enriched: '2026-08-13'
    x-async-pattern: submit-poll-or-webhook
    x-webhook-catalog: asyncapi/similarweb-webhooks.yml
    x-error-catalog: errors/similarweb-problem-types.yml
    x-data-model: data-model/similarweb-data-model.yml

- target: $
  description: >-
    The asynchronous execution contract, which the path-level spec does not express.
  update:
    x-job-lifecycle:
      submit: requestReport
      price_first: validateRequest
      poll: getRequestStatus
      history: getReportHistory
      retry: retryRequest
      notify: subscribeWebhook
      statuses: [processing, complete, internal_error]
      max_domains_per_job: 1000000
      delivery_targets: [Amazon S3, Google Cloud Storage, Snowflake]

- target: $
  description: >-
    The Batch 429 is a limit on PENDING jobs, not the REST 10-requests-per-second limit.
    Conflating the two is the most likely integration error on this surface.
  update:
    x-rate-limit:
      kind: pending-job-concurrency
      status_on_exhaustion: 429
      distinct_from: the REST 10 rps limit
      docs: https://docs.similarweb.com/api-v5/guides/error-handling-and-troubleshooting

- target: $.components.schemas.WebhookSubscribeRequest
  description: >-
    The `secret` field has no documented signature header or verification algorithm, so a
    subscriber cannot authenticate an inbound delivery. Flagged rather than fabricated.
  update:
    x-signature-verification:
      documented: false
      note: >-
        A shared secret is accepted at subscribe time but no signing scheme is published.

- target: $.components.schemas.ValidateResponse
  description: Clarify the unit of estimated_cost.
  update:
    x-cost-unit: data-credits

- target: $.components.schemas.TableDescription
  description: >-
    vtable is the dataset discovery key for the entire Batch surface.
  update:
    x-discovery-key: vtable
    x-discovery-operation: describeTables