Vercel v0 Generate Then Refine App

arazzo: 1.0.1
info:
  title: Vercel v0 Generate Then Refine App
  summary: Generate an app from a prompt, then send a follow-up refinement in the same chat.
  description: >-
    A two-turn v0 generation flow that mirrors how developers actually iterate.
    The workflow creates a chat from an initial prompt to produce a first draft of
    the application, then continues the same chat with a refinement instruction so
    the generated code is revised in context. Each step inlines its request and
    documents the success status so the flow can be read and executed on its own.
  version: 1.0.0
sourceDescriptions:
- name: v0PlatformApi
  url: ../openapi/vercel-v0-platform-openapi.yml
  type: openapi
workflows:
- workflowId: generateThenRefineApp
  summary: Create a v0 chat, then iterate on it with a follow-up refinement message.
  description: >-
    Generates an initial application from a prompt and immediately refines it by
    continuing the same chat session, returning the revised preview URL and files.
  inputs:
    type: object
    required:
    - apiKey
    - message
    - refinement
    properties:
      apiKey:
        type: string
        description: v0 API key (V0_API_KEY) used as a Bearer token.
      message:
        type: string
        description: Initial natural language prompt describing the app to generate.
      refinement:
        type: string
        description: Follow-up instruction used to refine the generated app.
  steps:
  - stepId: createChat
    description: Start a new v0 chat session that generates the first draft of the app.
    operationId: createChat
    parameters:
    - name: Authorization
      in: header
      value: Bearer $inputs.apiKey
    requestBody:
      contentType: application/json
      payload:
        message: $inputs.message
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      chatId: $response.body#/id
      previewUrl: $response.body#/previewUrl
  - stepId: refineChat
    description: >-
      Continue the same chat session with a refinement instruction so the
      generated application is revised in context.
    operationId: continueChat
    parameters:
    - name: chatId
      in: path
      value: $steps.createChat.outputs.chatId
    - name: Authorization
      in: header
      value: Bearer $inputs.apiKey
    requestBody:
      contentType: application/json
      payload:
        message: $inputs.refinement
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      previewUrl: $response.body#/previewUrl
      files: $response.body#/files
      updatedAt: $response.body#/updatedAt
  outputs:
    chatId: $steps.createChat.outputs.chatId
    previewUrl: $steps.refineChat.outputs.previewUrl
    files: $steps.refineChat.outputs.files