Update ai_service.py

ai_service.py

@@ -1,4 +1,4 @@
-# ai_service.py (Improved tool description for date inference)
+# ai_service.py (Instructs AI to assume 'largest' means by magnitude)
 import json
 import os
 import random
@@ -31,8 +31,8 @@ else:
 def call_mcp_earthquake_search(
     start_date: str,
     end_date: str,
-    min_magnitude: float = 4.5,
-    max_magnitude: float = 8.0
+    min_magnitude: float = 4.0, #降低最小規模門檻以獲取更多資料
+    max_magnitude: float = 9.0
 ) -> str:
     """根據指定的條件（時間、規模）從遠端伺服器搜尋地震事件。"""
     try:
@@ -67,8 +67,6 @@ def call_mcp_pws_search() -> str:
 
 # --- 3. 向 Gemini 定義工具 (Tool Declarations) ---
 
-# [*** 核心修正 ***]
-# 強化參數描述，引導 AI 自動從對話中推斷日期
 earthquake_search_tool_declaration = {
     "name": "call_earthquake_search_tool",
     "description": "從台灣中央氣象署的資料庫中搜尋地震事件。",
@@ -88,14 +86,10 @@ earthquake_search_tool_declaration = {
     }
 }
 
-
 pws_search_tool_declaration = {
     "name": "call_mcp_pws_search",
     "description": "查詢最新的 PWS (Public Weather Service) 公共天氣服務發布情形。",
-    "parameters": {
-        "type": "OBJECT",
-        "properties": {}
-    }
+    "parameters": {"type": "OBJECT", "properties": {}}
 }
 
 available_tools = {
@@ -107,14 +101,16 @@ available_tools = {
 model = None
 if selected_key:
     try:
+        # [*** 核心修正 ***]
+        # 新增指令，要求 AI 在遇到「最大」等模糊詞彙時，主動以「規模」作為判斷標準
         system_instruction = (
             "You are a helpful AI assistant. You must answer in Traditional Chinese."
-            "You have access to tools. When a tool returns data, "
-            "you MUST prioritize showing the detailed, raw data returned from the tool. "
-            "Do not summarize unless the user explicitly asks for a summary. "
-            "Format the tool's output clearly for the user."
+            "You have access to tools. When the user asks for the 'largest' or 'strongest' earthquake, "
+            "you MUST assume they mean by magnitude. You should then analyze the JSON data returned by the tool, "
+            "find the single entry with the highest 'magnitude' value, and present that specific earthquake's details as the answer."
+            "Do not simply show all the data; find the maximum and answer the question directly."
         )
-        model = genai.GenerativeModel(
+        model = genai.GenerateContent(
             model_name="gemini-1.5-flash",
             tools=[earthquake_search_tool_declaration, pws_search_tool_declaration],
             system_instruction=system_instruction
@@ -147,3 +143,4 @@ def generate_ai_text(user_prompt: str) -> str:
     except Exception as e:
         print(f"與 Gemini AI 互動時發生錯誤: {e}")
         return f"🤖 AI 服務發生錯誤: {e}"
+