{
  "id": "executor-fanout",
  "label": "执行型 org node 的 work graph（fan-out / fan-in 起手式）",
  "whenToUse": "宿主 org node 是执行类，且这次任务能拆成多个互不依赖、可并行推进的分支时用本骨架——27-REQ R-6 第 6 步描述的就是它：拆分 → 并行实现 + 各自自测（自测失败只回退本分支）→ fan-in 汇合整合 → 集成测试 → 本层验收。典型信号词：多个模块、多个页面、多个接口、可以同时做。汇合节点有多条入边，引擎按「全部入边条件都满足才置 ready」处理（27-P3/P4 §四.D.1）。分支数按实际任务增减，本文件给的是 2 条；任务只有一个交付物就别用它，用 executor.json。",
  "ownerOrgNode": "{{orgNode}}",
  "dataContractNotes": "拆分节点的产物声明成 contract（分支间接口契约）而不是 artifact：两条分支各自的交付物已经占了 artifact 这个 kind，而产物索引按 task + kind 查、同一 kind 只把最新那份递给下游，拆分方案写成 artifact 会被先跑完的分支产物顶掉。代价是 contract 属任务级共享 kind，本来就会自动递给每个节点，所以这两条声明的实际作用偏诊断（声明了却查不到实例时，提示词会显式标 ⚠️，等于当场暴露「拆分节点没产出接口契约」）。fan-in 的已知上限：merge 的两条入边各自 needs artifact，但索引按 kind 只回最新一份，merge 提示词里只会出现一条路径——两个分支的产物都要过目时，merge 仍得按提示词给的节点目录自己找齐。升级路径是让产物索引支持按 fromNodeId 过滤（inboundContracts 已经带回 fromNodeId，describeInputs 还没用它）。",
  "nodes": [
    { "nodeName": "{{orgNode}}-split", "systemAgentId": "{{splitAgent}}" },
    { "nodeName": "{{orgNode}}-impl-a", "systemAgentId": "{{implAgent}}" },
    { "nodeName": "{{orgNode}}-impl-b", "systemAgentId": "{{implAgent}}" },
    { "nodeName": "{{orgNode}}-test-a", "systemAgentId": "{{testAgent}}" },
    { "nodeName": "{{orgNode}}-test-b", "systemAgentId": "{{testAgent}}" },
    { "nodeName": "{{orgNode}}-merge", "systemAgentId": "{{mergeAgent}}" },
    { "nodeName": "{{orgNode}}-integration", "systemAgentId": "{{integrationAgent}}" },
    { "nodeName": "{{orgNode}}-validator", "systemAgentId": "{{validatorAgent}}" }
  ],
  "edges": [
    { "from": "{{orgNode}}-split", "to": "{{orgNode}}-impl-a", "condition": "success", "produces": ["contract"] },
    { "from": "{{orgNode}}-split", "to": "{{orgNode}}-impl-b", "condition": "success", "produces": ["contract"] },
    { "from": "{{orgNode}}-impl-a", "to": "{{orgNode}}-test-a", "condition": "success", "produces": ["artifact"] },
    { "from": "{{orgNode}}-impl-b", "to": "{{orgNode}}-test-b", "condition": "success", "produces": ["artifact"] },
    { "from": "{{orgNode}}-test-a", "to": "{{orgNode}}-merge", "condition": "success", "produces": ["log"], "needs": ["artifact"] },
    { "from": "{{orgNode}}-test-b", "to": "{{orgNode}}-merge", "condition": "success", "produces": ["log"], "needs": ["artifact"] },
    { "from": "{{orgNode}}-merge", "to": "{{orgNode}}-integration", "condition": "success", "produces": ["artifact"] },
    { "from": "{{orgNode}}-integration", "to": "{{orgNode}}-validator", "condition": "success", "produces": ["log"], "needs": ["artifact"] },
    { "from": "{{orgNode}}-test-a", "to": "{{orgNode}}-impl-a", "condition": "fail", "edgeKind": "backward" },
    { "from": "{{orgNode}}-test-b", "to": "{{orgNode}}-impl-b", "condition": "fail", "edgeKind": "backward" },
    { "from": "{{orgNode}}-integration", "to": "{{orgNode}}-merge", "condition": "fail", "edgeKind": "backward" },
    { "from": "{{orgNode}}-validator", "to": "{{orgNode}}-split", "condition": "fail", "edgeKind": "backward" }
  ]
}