Bugfix/Tool Agent output message (#2990)

* add fix for tool agent output message

* pin langchain core dependency

Author: HenryHengZJ

package.json

@@ -66,7 +66,7 @@
         "@qdrant/openapi-typescript-fetch": "1.2.6",
         "@google/generative-ai": "^0.15.0",
         "openai": "4.51.0",
-        "@langchain/aws": "0.0.6"
+        "@langchain/core": "0.2.18"
     },
     "eslintIgnore": [
         "**/dist",

packages/components/nodes/agents/ToolAgent/ToolAgent.ts

@@ -135,7 +135,12 @@ class ToolAgent_Agents implements INode {
             }
         }
 
-        let output = res?.output as string
+        let output = res?.output
+        if (Array.isArray(output)) {
+            output = output[0]?.text || ''
+        } else if (typeof output === 'object') {
+            output = output?.text || ''
+        }
 
         // Claude 3 Opus tends to spit out <thinking>..</thinking> as well, discard that in final output
         const regexPattern: RegExp = /<thinking>[\s\S]*?<\/thinking>/

packages/components/package.json

@@ -34,8 +34,8 @@
         "@google-ai/generativelanguage": "^2.5.0",
         "@google/generative-ai": "^0.15.0",
         "@huggingface/inference": "^2.6.1",
-        "@langchain/aws": "^0.0.6",
         "@langchain/anthropic": "^0.2.1",
+        "@langchain/aws": "^0.0.9",
         "@langchain/cohere": "^0.0.7",
         "@langchain/community": "^0.2.17",
         "@langchain/core": "0.2.18",

packages/server/src/utils/index.ts

@@ -1235,10 +1235,10 @@ export const isFlowValidForStream = (reactFlowNodes: IReactFlowNode[], endingNod
         ]
         isValidChainOrAgent = whitelistAgents.includes(endingNodeData.name)
 
-        // Anthropic & Groq Function Calling streaming is still not supported - https://docs.anthropic.com/claude/docs/tool-use
+        // Anthropic streaming has some bug where the log is being sent, temporarily disabled
         const model = endingNodeData.inputs?.model
         if (endingNodeData.name.includes('toolAgent')) {
-            if (typeof model === 'string' && (model.includes('chatAnthropic') || model.includes('groqChat'))) {
+            if (typeof model === 'string' && model.includes('chatAnthropic')) {
                 return false
             } else if (typeof model === 'object' && 'id' in model && model['id'].includes('chatAnthropic')) {
                 return false