summary: Butler generic runner - delegated step execution
description: >-
  Receives a serialized TaskContract and resolved step list from Butler,
  executes steps server-side with Butler-compatible semantics
  (cmd/check/wait/retry), and returns ok/summary/step_results/evidence.
value:
  modules:
    - id: a
      summary: Execute Butler task steps
      value:
        type: rawscript
        content: '!inline execute_butler_task_steps.py'
        input_transforms:
          context:
            type: javascript
            expr: flow_input.context
          steps:
            type: javascript
            expr: flow_input.steps
          task_contract:
            type: javascript
            expr: flow_input.task_contract
        lock: '!inline execute_butler_task_steps.lock'
        language: python3
schema:
  $schema: 'https://json-schema.org/draft/2020-12/schema'
  type: object
  order:
    - task_contract
    - steps
    - context
  properties:
    context:
      type: object
      description: 'Execution context (target, payload)'
      default: {}
    steps:
      type: array
      description: Resolved SOP step list
      items:
        type: object
    task_contract:
      type: object
      description: Serialized Butler TaskContract
  required:
    - task_contract
    - steps