From 7c253e6b102629d03445adf34afef07c722ecba8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=9D=92=E9=9B=B2?= <137844255@qq.com>
Date: Fri, 13 Feb 2026 20:07:13 +0800
Subject: [PATCH] fix: handle missing arguments in MCP tool calls to prevent
 GUI crash (#7143)
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Signed-off-by: 青雲 <137844255@qq.com>
---
 ui/desktop/src/components/ToolCallWithResponse.tsx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ui/desktop/src/components/ToolCallWithResponse.tsx b/ui/desktop/src/components/ToolCallWithResponse.tsx
index 06a91ce2dc..a4a6ea1ead 100644
--- a/ui/desktop/src/components/ToolCallWithResponse.tsx
+++ b/ui/desktop/src/components/ToolCallWithResponse.tsx
@@ -518,7 +518,7 @@ function ToolCallView({
 
   // Function to create a descriptive representation of what the tool is doing
   const getToolDescription = (): string | null => {
-    const args = toolCall.arguments as Record<string, ToolCallArgumentValue>;
+    const args = (toolCall.arguments ?? {}) as Record<string, ToolCallArgumentValue>;
     const toolName = getToolName(toolCall.name);
 
     const getStringValue = (value: ToolCallArgumentValue): string => {