API Evangelist enhancements for OpenAI API (webhooks manifest)

overlay: 1.0.0
info:
  title: API Evangelist enhancements for OpenAI API (webhooks manifest)
  version: 1.0.0
extends: openapi/openai-openai-api-api-openapi.yml
x-generated: '2026-09-23'
x-method: generated
x-source: openapi/openai-openai-api-api-openapi.yml
x-note: >-
  Captures the API Evangelist enrichment layer over OpenAI's webhooks-only
  manifest as a repeatable OpenAPI Overlay 1.0.0 transformation. This upstream
  document carries `paths: {}` and defines only the `webhooks:` object (batch,
  fine-tuning, evals, realtime and response lifecycle events), so the overlay
  targets $.info alone — there are no operations to enrich. The upstream is
  never mutated. Every referenced artifact is a real file in this repository.
actions:
  - target: $.info
    update:
      x-apievangelist:
        catalog: https://apis.io/openai
        provider: OpenAI
        maintainer: Kin Lane <kin@apievangelist.com>
        upstream: https://github.com/openai/openai-openapi
        artifacts:
          - apis.yml
          - vocabulary/openai-vocabulary.yaml
          - rules/openai-spectral-rules.yml
          - conformance/openai-conformance.yml
          - conventions/openai-conventions.yml
          - errors/openai-problem-types.yml
          - lifecycle/openai-lifecycle.yml
          - rate-limits/openai-rate-limits.yml
          - plans/openai-plans-pricing.yml
          - packages/openai-packages.yml
          - scopes/openai-scopes.yml
          - authentication/openai-authentication.yml
          - data-model/openai-data-model.yml
          - mcp/openai-mcp.yml
          - mcp/openai-tool-crosswalk.yml
          - well-known/openai-well-known.yml
          - sandbox/openai-sandbox.yml
          - changelog/openai-changelog.yml
          - agentic-access/openai-agentic-access.yml
      x-runtime-semantics:
        surface: webhooks
        surface_note: >-
          This document defines OpenAI's outbound webhooks (batch, fine-tuning,
          evals, realtime call incoming, response completed/failed/cancelled/
          incomplete). There are no request operations here; consumers register
          a callback URL in the dashboard and verify signed deliveries.
        signature_header: webhook-signature
        signature_scheme: Standard Webhooks (HMAC-SHA256, base64)
        idempotency: none
        idempotency_note: >-
          Webhook deliveries can be retried by the sender and MUST be treated
          as at-least-once. Deduplicate on the event id in the payload.
        reversibility: >-
          Webhook events are notifications only; the source-of-truth resource
          is queried via its own API (Batch, Fine-tuning, Evals, Responses).
        request_id_header: x-request-id