実行モデル

steps:
  - id: step_a
    tool: TOOL_A

  - id: step_b
    tool: TOOL_B
    needs: [step_a]  # step_aを待つ

  - id: step_c
    tool: TOOL_C
    needs: [step_b]  # step_bを待つ

steps:
  - id: input
    tool: INPUT_TEXT

  - id: branch_a
    tool: TOOL_A
    needs: [input]

  - id: branch_b
    tool: TOOL_B
    needs: [input]  # branch_aと並列に実行

  - id: merge
    tool: TOOL_C
    needs: [branch_a, branch_b]  # 両方を待つ

steps:
  - id: classify
    tool: GEMINI_CHAT
    input:
      - name: prompt
        value: "「緊急」または「通常」に分類: {{inputs.message}}"

  - id: urgent_handler
    tool: SLACK_POST_MESSAGE
    needs: [classify]
    when: "'{{steps.classify.result.content}}' == '緊急'"
    input:
      - name: message
        value: "緊急: {{inputs.message}}"

  - id: normal_handler
    tool: GMAIL_SEND
    needs: [classify]
    when: "'{{steps.classify.result.content}}' == '通常'"
    input:
      - name: body
        value: "{{inputs.message}}"

steps:
  - id: get_items
    tool: INPUT_JSON
    input:
      - name: value
        value: '[{"name": "Alice"}, {"name": "Bob"}, {"name": "Carol"}]'

  - id: greet_each
    tool: GEMINI_CHAT
    forEach: "{{steps.get_items.result}}"
    needs: [get_items]
    input:
      - name: prompt
        value: "{{item.name}}への挨拶を書いて"