Step Acts

A step can contain multiple activities. Activities can be combined in different ways depending on the package used.

Single Act

The simplest case: a step uses a single act:

steps:
    - id: step1
      uses: acts.core.irq
      params:
        key: act1

Block (Nested Acts)

Use acts.core.block to nest multiple acts within a step. Acts execute in sequence mode by default:

steps:
    - id: step1
      uses: acts.core.block
      params:
        mode: sequence
        acts:
          - uses: acts.core.irq
            params:
              key: act1
          - uses: acts.transform.set
            params:
              a: 10
          - uses: acts.core.msg
            params:
              key: done

Parallel (Loop over List)

Use acts.core.parallel to execute acts in parallel over a list:

steps:
    - id: step1
      vars:
        - name: users
          value:
            - u1
            - u2
      uses: acts.core.parallel
      params:
        in: '${{ users }}'
        acts:
          - uses: acts.core.irq
            params:
              key: act1

The engine automatically injects index and value into each child act’s variable context.

Sequence (Chain over List)

Use acts.core.sequence to execute acts sequentially over a list (each act waits for the previous one to complete):

steps:
    - id: step1
      vars:
        - name: users
          value:
            - u1
            - u2
      uses: acts.core.sequence
      params:
        in: '${{ users }}'
        acts:
          - uses: acts.core.irq
            params:
              key: act1

Comparison