Create WebhookPostTool.py

tools/WebhookPostTool.py

@@ -0,0 +1,11 @@
+class WebhookPostTool(Tool):
+    name = "webhook_post"
+    description = "Send a JSON payload to a webhook URL and return the response as text."
+    output_type = str  # Must be one of SmolAgents authorized types
+
+    def forward(self, webhook_url: str, payload: dict) -> str:
+        try:
+            response = requests.post(webhook_url, json=payload)
+            return response.text
+        except Exception as e:
+            return f"Error sending request: {str(e)}"