Refactor WhatsApp chat agent to use DuckDuckGo for web searches

- Replaced YFinanceTools with DuckDuckGoTools for improved search capabilities.
- Updated agent description to reflect the new functionality and interaction style.
- Removed duplicate webhook URL export from README for clarity.

Author: Ansub

cookbook/examples/apps/whatsapp_chat_agent/agents.py

@@ -4,8 +4,8 @@
 from agno.agent import Agent
 from agno.models.openai import OpenAIChat
 from agno.storage.agent.sqlite import SqliteAgentStorage
+from agno.tools.duckduckgo import DuckDuckGoTools
 from agno.tools.whatsapp import WhatsAppTools
-from agno.tools.yfinance import YFinanceTools
 from dotenv import load_dotenv
 
 # Configure logging
@@ -42,20 +42,13 @@ def get_whatsapp_agent() -> Agent:
         model=OpenAIChat(id="gpt-4o"),
         tools=[
             whatsapp,
-            YFinanceTools(
-                stock_price=True,
-                analyst_recommendations=True,
-                stock_fundamentals=True,
-                historical_prices=True,
-                company_info=True,
-                company_news=True,
-            ),
+            DuckDuckGoTools(),
         ],
         storage=SqliteAgentStorage(
             table_name="whatsapp_agent", db_file=AGENT_STORAGE_FILE
         ),
         add_history_to_messages=True,
         num_history_responses=3,
         markdown=True,
-        description="You are a financial advisor and can help with stock-related queries. You will respond like how people talk to each other on whatsapp, with short sentences and simple language. don't add markdown to your responses.",
+        description="You are a whatsapp chat agent. You will respond like how people talk to each other on whatsapp, with short sentences and simple language. If user asks you something which requires a web search, use the DuckDuckGoTools to search the web.",
     )

cookbook/examples/apps/whatsapp_chat_agent/readme.md

@@ -43,7 +43,6 @@ export WHATSAPP_PHONE_NUMBER_ID=your_phone_number_id
 export WHATSAPP_RECIPIENT_WAID=phone_number_with_country_code  # e.g. +1234567890
 export WHATSAPP_WEBHOOK_URL=your_webhook_url
 export WHATSAPP_VERIFY_TOKEN=your_custom_verify_token  # Can be any string you choose
-export WHATSAPP_WEBHOOK_URL=your_webhook_url
 export OPENAI_API_KEY=your_openai_api_key
 ```
 

libs/agno/agno/tools/whatsapp.py

@@ -75,7 +75,7 @@ def _log_config_status(self):
             "Optional settings": {
                 "default_recipient": bool(self.default_recipient),
                 "api_version": self.version,
-                "async_mode": self.async_mode
+                "async_mode": self.async_mode,
             },
         }
         logger.debug(f"WhatsApp toolkit configuration status: {json.dumps(config_status, indent=2)}")
@@ -225,7 +225,9 @@ def send_template_message_sync(
             logger.error(f"Failed to send WhatsApp template message: {e}")
             raise
 
-    async def send_text_message_async(self, text: str = "", recipient: Optional[str] = None, preview_url: bool = False) -> str:
+    async def send_text_message_async(
+        self, text: str = "", recipient: Optional[str] = None, preview_url: bool = False
+    ) -> str:
         """Send a text message to a WhatsApp user (asynchronous version).
 
         Args: