Update default agent run name (#5046)

Author: jacoblee93

langchain/src/agents/agent.ts

@@ -315,7 +315,8 @@ export class RunnableMultiActionAgent extends BaseMultiActionAgent {
     super(fields);
     this.runnable = fields.runnable;
     this.stop = fields.stop;
-    this.defaultRunName = fields.defaultRunName ?? this.defaultRunName;
+    this.defaultRunName =
+      fields.defaultRunName ?? this.runnable.name ?? this.defaultRunName;
     this.streamRunnable = fields.streamRunnable ?? this.streamRunnable;
   }
 

langchain/src/agents/tool_calling/index.ts

@@ -118,14 +118,5 @@ export function createToolCallingAgent({
       singleAction: false,
     }
   );
-
-  // agent = (
-  //     RunnablePassthrough.assign(
-  //         agent_scratchpad=lambda x: format_to_tool_messages(x["intermediate_steps"])
-  //     )
-  //     | prompt
-  //     | llm_with_tools
-  //     | ToolsAgentOutputParser()
-  // )
   return agent;
 }