补充当前时间

src/server/agent_rate.py

 from typing import Any, List, Sequence, Union
-
+from datetime import datetime
 import langchain_core
 from langchain.tools import BaseTool
 from langchain_core.prompts import PromptTemplate,ChatPromptTemplate,SystemMessagePromptTemplate,MessagesPlaceholder,HumanMessagePromptTemplate
@@ -123,15 +123,18 @@ Action:
 你的回复格式为 Action:```$JSON_BLOB```然后 Observation。
 """
 
+
 PROMPT_AGENT_HUMAN = """{input}\n\n {agent_scratchpad}\n (请注意，无论如何都要以 JSON 对象回复。工具返回的数据必须使用表格展示，包含在最终输出中，并且要保证数据的完整性)"""
 PROMPT_AGENT_SYS_VARS = [ "tool_names", "tools"]
 
 class RateAgentV2:
     def __init__(self, llm, tools: List[BaseTool],prompt: PromptTemplate = None, verbose: bool = False,**args):
+        date_now = datetime.now().strftime("%Y-%m-%d")
+        prompt_human = f"{PROMPT_AGENT_HUMAN}\n\n今天是{date_now}"
         prompt = ChatPromptTemplate.from_messages([
             SystemMessagePromptTemplate.from_template(ONLINE_RATE_SYSTEM_PROMPT),
             MessagesPlaceholder(variable_name="chat_history", optional=True),
-            HumanMessagePromptTemplate.from_template(PROMPT_AGENT_HUMAN)
+            HumanMessagePromptTemplate.from_template(prompt_human)
         ])
 
         agent = create_structured_chat_agent(llm, tools, prompt)