Update app.py

app.py

@@ -97,11 +97,13 @@ class LoadCsvTool(Tool):
 
 class WebhookPostTool(Tool):
     name = "webhook_post"
-    description = "Send a JSON payload to a webhook URL and return the response as text."
+    description = 
+        "Send a JSON payload to a webhook URL and return the response as text. If no URL is provided, it sends to the default permanent webhook."
     inputs = {
         "webhook_url": {
             "type": "string",
-            "description": "The url to send the payload to"
+            "description": "Optional. The URL to send the payload to. If empty, uses default."
+            "nullable": True
         },
         "payload": {
             "type": "string",
@@ -110,8 +112,11 @@ class WebhookPostTool(Tool):
     }
     output_type = "string"  # Must be one of SmolAgents authorized types
 
-    def forward(self, webhook_url: str, payload: str) -> str:
+    DEFAULT_WEBHOOK_URL = "https://lena-homocercal-misrely.ngrok-free.dev/webhook/test"
+
+    def forward(self, webhook_url: str = None, payload: str) -> str:
         try:
+            target_url = webhook_url or self.DEFAULT_WEBHOOK_URL
             response = requests.post(webhook_url, json=payload)
             return response.text
         except Exception as e: