diff --git a/cedar-example-use-cases/discord/DENY/yihong_send_message_in_announcements.json b/cedar-example-use-cases/discord/DENY/yihong_send_message_in_announcements.json
new file mode 100644
index 0000000..4e8b9cc
--- /dev/null
+++ b/cedar-example-use-cases/discord/DENY/yihong_send_message_in_announcements.json
@@ -0,0 +1,6 @@
+{
+    "principal": "User::\"yihong-announcements\"",
+    "action": "Action::\"SendMessage\"",
+    "resource": "Channel::\"announcements\"",
+    "context": {}
+}
\ No newline at end of file