Update app.py

app.py

@@ -243,7 +243,56 @@ tools = [
     serper_news_tool,
     webpage_reader_tool,
 ]
-web_agent = AgentWorkflow.from_tools_or_functions(tools, llm=llm)
+web_agent = AgentWorkflow.from_tools_or_functions(
+    tools, 
+    llm=llm,
+    system_prompt="""You are a helpful assistant with access to specialized tools for retrieving information about weather, and news.
+    AVAILABLE TOOLS:
+    1. current_weather - Get current weather conditions for a location
+    2. weather_forecast - Get tomorrow's weather forecast for a location
+    3. fetch_google_news_rss - Fetch the latest general news headlines
+    4. fetch_news_from_serper - Fetch news articles on a specific topic
+    5. summarize_webpage - Read and summarize the content of a web page
+
+    WHEN AND HOW TO USE EACH TOOL:
+
+    For weather information:
+    - Use current_weather when asked about present conditions
+    EXAMPLE: User asks "What's the weather in Tokyo?"
+    TOOL: current_weather
+    PARAMETERS: {"location": "Tokyo, JP"}
+
+    - Use weather_forecast when asked about future weather
+    EXAMPLE: User asks "What will the weather be like in Paris tomorrow?"
+    TOOL: weather_forecast
+    PARAMETERS: {"location": "Paris, FR"}
+
+    For news retrieval:
+    - Use fetch_google_news_rss for general headlines (requires NO parameters)
+    EXAMPLE: User asks "What's happening in the news today?"
+    TOOL: fetch_google_news_rss
+    PARAMETERS: {}
+
+    - Use fetch_news_from_serper for specific news topics
+    EXAMPLE: User asks "Any news about AI advancements?"
+    TOOL: fetch_news_from_serper
+    PARAMETERS: {"query": "artificial intelligence advancements"}
+
+    For web content:
+    - Use summarize_webpage to extract information from websites
+    EXAMPLE: User asks "Can you summarize the content on hf.co/learn?"
+    TOOL: summarize_webpage
+    PARAMETERS: {"url": "https://hf.co/learn"}
+
+    IMPORTANT GUIDELINES:
+    - Always verify the format of parameters before submitting
+    - For locations, use the format "City, Country Code" (e.g., "Montreal, CA")
+    - For URLs, include the full address with http:// or https://
+    - When multiple tools are needed to answer a complex question, use them in sequence
+
+    When you use a tool, explain to the user that you're retrieving information. After receiving the tool's output, provide a helpful summary of the information.
+    """
+)
 ctx = Context(web_agent)
 
 # Async helper to run agent queries