Runloop Write, Execute, and Read a File on a Devbox

arazzo: 1.0.1
info:
  title: Runloop Write, Execute, and Read a File on a Devbox
  summary: Boot a devbox, write a file into it, run a command that transforms the file, then read the resulting contents back.
  description: >-
    A common devbox file round trip. The workflow creates a devbox, waits for it
    to be running, writes a UTF-8 file onto its filesystem, executes a shell
    command that operates on that file, and finally reads the file contents back
    as text. Every step spells out its request inline so the flow can be read and
    executed without opening the underlying OpenAPI description.
  version: 1.0.0
sourceDescriptions:
- name: devboxApi
  url: ../openapi/runloop-ai-devbox-api-openapi.yml
  type: openapi
workflows:
- workflowId: write-execute-read-file
  summary: Write a file, run a command on it, and read it back from a devbox.
  description: >-
    Creates a devbox, waits for running, writes a file, executes a command, and
    reads the file contents back.
  inputs:
    type: object
    required:
    - apiToken
    - filePath
    - contents
    - command
    - commandId
    properties:
      apiToken:
        type: string
        description: Runloop API bearer token.
      name:
        type: string
        description: Optional friendly name for the devbox.
      commandId:
        type: string
        description: A client supplied UUIDv7 command id for idempotency and tracking.
      filePath:
        type: string
        description: Path on the devbox to write and read, relative to the user home directory.
      contents:
        type: string
        description: The UTF-8 string contents to write to the file.
      command:
        type: string
        description: A shell command that operates on the written file.
  steps:
  - stepId: createDevbox
    description: Create a devbox to host the file round trip.
    operationId: createDevbox
    parameters:
    - name: Authorization
      in: header
      value: Bearer $inputs.apiToken
    requestBody:
      contentType: application/json
      payload:
        name: $inputs.name
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      devboxId: $response.body#/id
  - stepId: waitUntilRunning
    description: Poll until the devbox is running, looping back while it boots.
    operationId: waitForDevboxStatus
    parameters:
    - name: Authorization
      in: header
      value: Bearer $inputs.apiToken
    - name: id
      in: path
      value: $steps.createDevbox.outputs.devboxId
    requestBody:
      contentType: application/json
      payload:
        statuses:
        - running
        timeout_seconds: 30
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      status: $response.body#/status
    onSuccess:
    - name: ready
      type: goto
      stepId: writeFile
      criteria:
      - context: $response.body
        condition: $.status == "running"
        type: jsonpath
    - name: stillBooting
      type: goto
      stepId: waitUntilRunning
      criteria:
      - context: $response.body
        condition: $.status == "provisioning" || $.status == "initializing"
        type: jsonpath
  - stepId: writeFile
    description: Write the supplied UTF-8 contents to the file path on the devbox.
    operationId: devboxWriteFileContents
    parameters:
    - name: Authorization
      in: header
      value: Bearer $inputs.apiToken
    - name: id
      in: path
      value: $steps.createDevbox.outputs.devboxId
    requestBody:
      contentType: application/json
      payload:
        file_path: $inputs.filePath
        contents: $inputs.contents
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      writeStdout: $response.body#/stdout
  - stepId: runCommand
    description: Execute a command that operates on the written file, waiting for completion.
    operationId: executeCommand
    parameters:
    - name: Authorization
      in: header
      value: Bearer $inputs.apiToken
    - name: id
      in: path
      value: $steps.createDevbox.outputs.devboxId
    requestBody:
      contentType: application/json
      payload:
        command_id: $inputs.commandId
        command: $inputs.command
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      execStatus: $response.body#/status
      executionId: $response.body#/execution_id
  - stepId: readFile
    description: Read the file contents back from the devbox as text.
    operationId: devboxReadFileContents
    parameters:
    - name: Authorization
      in: header
      value: Bearer $inputs.apiToken
    - name: id
      in: path
      value: $steps.createDevbox.outputs.devboxId
    requestBody:
      contentType: application/json
      payload:
        file_path: $inputs.filePath
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      fileContents: $response.body
  outputs:
    devboxId: $steps.createDevbox.outputs.devboxId
    executionId: $steps.runCommand.outputs.executionId
    fileContents: $steps.readFile.outputs.fileContents