gump run refactor --spec refactor-spec.md

name: refactor
max_budget: 5.00

steps:
  - name: decompose
    type: split
    get:
      prompt: |
        Plan refactoring for: {spec}
        Ensure each task is independently testable.
        All existing tests must stay green after each task.
    run:
      agent: claude-sonnet
    gate: [schema]
    each:
      - name: apply
        type: code
        get:
          prompt: |
            Refactor according to: {task.description}
            Only modify: {task.files}
            All existing tests must continue to pass.
        run:
          agent: claude-haiku
          guard:
            max_turns: 60
        gate: [compile, test]
        retry:
          - attempt: 3
            agent: claude-sonnet
          - exit: 4

  - name: quality
    gate: [compile, lint, test]