Function getGroupDescriptor

src/browser/components/ProjectSidebar/sidebarTaskGroups.ts:101–140

(
  workspace: FrontendWorkspaceMetadata,
  hasChildren: (workspaceId: string) => boolean
)

}

function getGroupDescriptor(
  workspace: FrontendWorkspaceMetadata,
  hasChildren: (workspaceId: string) => boolean
): GroupDescriptor | null {
  const parentWorkspaceId = workspace.parentWorkspaceId;
  if (!parentWorkspaceId) {
    return null;
  }
  // Leaf-only rule (D4): a member that spawned its own sub-agents falls out of
  // the group and renders as a normal subtree.
  if (hasChildren(workspace.id)) {
    return null;
  }

  const bestOfGroupId = workspace.bestOf?.groupId;
  if (bestOfGroupId) {
    if ((workspace.bestOf?.total ?? 1) < 2) {
      return null;
    }
    return {
      id: bestOfGroupId,
      kind: getTaskGroupKindFromMetadata(workspace.bestOf),
      parentWorkspaceId,
      storageKey: `task:${parentWorkspaceId}:${bestOfGroupId}`,
    };
  }

  // bestOf grouping wins when both are present (D3).
  const workflowRunId = workspace.workflowTask?.runId;
  if (workflowRunId) {
    return {
      id: workflowRunId,
      kind: "workflow",
      parentWorkspaceId,
      storageKey: workflowGroupStorageKey(parentWorkspaceId, workflowRunId),
    };
  }

  return null;
}

/**
 * Storage key of the workflow group a workspace would belong to, ignoring the