Update app.py

app.py

@@ -42,6 +42,16 @@ class LoadCsvTool(Tool):
 class WebhookPostTool(Tool):
     name = "webhook_post"
     description = "Send a JSON payload to a webhook URL and return the response as text."
+    input = {
+        "webhook_url": {
+            "type": "string",
+            "description": "The url to send the payload to"
+        },
+        "payload": {
+            "type": "dictionary",
+            "description": "The message/body nto send to the webhook"
+        }
+    }
     output_type = str  # Must be one of SmolAgents authorized types
 
     def forward(self, webhook_url: str, payload: dict) -> str: