feat: 调整提示词

service/agent_service.py

@@ -1,7 +1,8 @@
 import json
+from datetime import datetime
 from typing import Dict, Any
 
-from langchain_core.messages import HumanMessage
+from langchain_core.messages import HumanMessage, SystemMessage
 
 from agent.health import tip_agent, recipe_agent
 
@@ -10,11 +11,15 @@ memory_store: Dict[str, Any] = {
     "recipe": []
 }
 
+
 def query_tip_agent():
     try:
-        print("开始生成今日5篇健康科普文章")
+        print("开始生成今日健康资讯")
+        today = datetime.today().strftime("%Y-%m-%d")
+
         resp = tip_agent.invoke({
-            "messages": [HumanMessage(content="请生成今日5篇健康科普文章")]
+            "messages": [SystemMessage(content=f"当前系统日期：{today} \n\n"),
+                         HumanMessage(content="请生成今日健康资讯")]
         })
         last_msg = resp["messages"][-1]
         raw_text = last_msg.content.strip()
@@ -23,7 +28,7 @@ def query_tip_agent():
         articles = json.loads(raw_text)
         # 写入内存缓存
         memory_store["articles"] = articles
-        print("结束生成今日5篇健康科普文章")
+        print("结束生成今日健康资讯")
         return True
     except json.JSONDecodeError as je:
         print(f"[JSON解析错误] {str(je)}")
@@ -35,14 +40,19 @@ def query_tip_agent():
         memory_store["articles"] = []
         return False
 
+
 def get_latest_tip():
     return memory_store["articles"]
 
+
 def query_recipe_agent():
     try:
-        print("开始生成今日菜谱")
+        print("开始生成今日养生食谱")
+        today = datetime.today().strftime("%Y-%m-%d")
+
         resp = recipe_agent.invoke({
-            "messages": [HumanMessage(content="请生成今日菜谱")]
+            "messages": [SystemMessage(content=f"当前系统日期：{today} \n\n"),
+                         HumanMessage(content="请生成今日养生食谱")]
         })
         last_msg = resp["messages"][-1]
         raw_text = last_msg.content.strip()
@@ -51,7 +61,7 @@ def query_recipe_agent():
         recipes = json.loads(raw_text)
         # 写入内存缓存
         memory_store["recipe"] = recipes
-        print("结束生成今日菜谱")
+        print("结束生成今日养生食谱")
         return True
     except json.JSONDecodeError as je:
         print(f"[JSON解析错误] {str(je)}")
@@ -63,5 +73,6 @@ def query_recipe_agent():
         memory_store["recipe"] = []
         return False
 
+
 def get_latest_recipe():
-    return memory_store["recipe"]
+    return memory_store["recipe"]