From 3797d53c78acc73309255a60812a6ffe80ffac5c Mon Sep 17 00:00:00 2001
From: twwu <twwu@dify.ai>
Date: Tue, 16 Sep 2025 16:42:15 +0800
Subject: [PATCH] fix: Update type handling in ToolNodeType to ensure proper
 formatting for unknown types

---
 web/app/components/workflow/nodes/tool/default.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/web/app/components/workflow/nodes/tool/default.ts b/web/app/components/workflow/nodes/tool/default.ts
index 51946bf374..0ffd7b1883 100644
--- a/web/app/components/workflow/nodes/tool/default.ts
+++ b/web/app/components/workflow/nodes/tool/default.ts
@@ -99,8 +99,8 @@ const nodeDefault: NodeDefault<ToolNodeType> = {
         const dataType = output.type
         const schemaType = getMatchedSchemaType(output, schemaTypeDefinitions)
         let type = dataType === 'array'
-          ? `array[${output.items?.type.slice(0, 1).toLocaleLowerCase()}${output.items?.type.slice(1)}]`
-          : `${output.type.slice(0, 1).toLocaleLowerCase()}${output.type.slice(1)}`
+          ? `Array[${output.items?.type ? output.items.type.slice(0, 1).toLocaleLowerCase() + output.items.type.slice(1) : 'Unknown'}]`
+          : `${output.type ? output.type.slice(0, 1).toLocaleLowerCase() + output.type.slice(1) : 'Unknown'}`
 
         if (type === VarType.object && schemaType === 'file')
           type = VarType.file