diff --git a/src/components/WorkFlow/node.tsx b/src/components/WorkFlow/node.tsx
index 512e836f..3af1e022 100644
--- a/src/components/WorkFlow/node.tsx
+++ b/src/components/WorkFlow/node.tsx
@@ -332,7 +332,7 @@ export function Node({ id, data }: NodeProps) {
 						? `${agentMap[data.type]?.borderColor} z-50`
 						: "border-worker-border-default z-10"
 				} transition-all duration-300 ease-in-out ${
-					data.agent?.tasks.length === 0 && "opacity-30"
+					(data.agent?.tasks?.length ?? 0) === 0 && "opacity-30"
 				}`}
 			>
 				<div
@@ -451,13 +451,15 @@ export function Node({ id, data }: NodeProps) {
 									)}
 							</div>
 						)}
-						{data.type === "document_agent" && (
-							<div className="overflow-hidden w-full h-[180px] rounded-sm relative">
-								<div className="absolute left-0 top-0  scale-[0.3] w-[500px] h-[500px] origin-top-left">
-									<Folder data={data.agent as Agent} />
+						{data.type === "document_agent" &&
+							data?.agent?.tasks &&
+							data.agent.tasks.length > 0 && (
+								<div className="overflow-hidden w-full h-[180px] rounded-sm relative">
+									<div className="absolute left-0 top-0  scale-[0.3] w-[500px] h-[500px] origin-top-left">
+										<Folder data={data.agent as Agent} />
+									</div>
 								</div>
-							</div>
-						)}
+							)}
 
 						{data.type === "developer_agent" &&
 							data?.agent?.tasks &&
diff --git a/utils/__pycache__/__init__.cpython-310.pyc b/utils/__pycache__/__init__.cpython-310.pyc
index 57ecb1ad..10d1d4a6 100644
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diff --git a/utils/__pycache__/traceroot_wrapper.cpython-310.pyc b/utils/__pycache__/traceroot_wrapper.cpython-310.pyc
index b8d9747f..d695ee21 100644
Binary files a/utils/__pycache__/traceroot_wrapper.cpython-310.pyc and b/utils/__pycache__/traceroot_wrapper.cpython-310.pyc differ