Update agent.py

agent.py

@@ -94,7 +94,8 @@ class BasicAgent:
         self.tools = [web_search, visit_webpage, read_file, image_caption]
         self.prompt = ChatPromptTemplate.from_messages([
             ("system", self.sys_prompt),
-            ("human", "{input}")
+            ("human", "{input}"),
+            ("placeholder", "{agent_scratchpad}")
         ])
         self.agent = create_tool_calling_agent(self.model, self.tools, self.prompt)
         self.agent_exe = AgentExecutor(agent=self.agent, tools=self.tools, verbose=True)