diff --git a/CLAUDE.md b/CLAUDE.md
index 90efc6e..ccc2d1d 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -29,10 +29,13 @@ The entire implementation is a single Babashka script (`iamwaiting`) with these
 Configuration is stored in `~/.iamwaiting/config.edn` with the following structure:
 
 ```clojure
-{:webhook-url "https://discord.com/api/webhooks/..."}
+{:webhook-url "https://discord.com/api/webhooks/..."
+ :user-id "123456789012345678"}  ; Optional: Discord user ID for @mentions
 ```
 
-Alternatively, the webhook URL can be set via the `IAMWAITING_WEBHOOK_URL` environment variable.
+Alternatively, configuration can be set via environment variables:
+- `IAMWAITING_WEBHOOK_URL` - Discord webhook URL (required)
+- `IAMWAITING_USER_ID` - Discord user ID for @mentions (optional)
 
 ## Installation
 
@@ -114,14 +117,23 @@ Notifications include:
 - ⏳ Waiting indicator
 - 📁 Current working directory / project name
 - 🕐 Timestamp (HH:mm:ss format)
+- @mention (if user ID is configured and it's a permission prompt)
 
-Example message:
+Example message (normal prompt):
 ```
 ⏳ **Claude is waiting** in `ajet-industries`
 📁 Path: `/home/user/repos/ajet-industries`
 🕐 Time: 14:23:45
 ```
 
+Example message (permission prompt with user ID configured):
+```
+<@123456789012345678> ⏳ **Claude is waiting** in `ajet-industries`
+📁 Path: `/home/user/repos/ajet-industries`
+🕐 Time: 14:23:45
+📢 Type: `permission_prompt`
+```
+
 ### Error Handling
 
 - Missing configuration prompts user to run `./iamwaiting setup`
diff --git a/iamwaiting b/iamwaiting
index 659bdae..e29c2b6 100755
--- a/iamwaiting
+++ b/iamwaiting
@@ -13,8 +13,11 @@
   (let [config (when (fs/exists? config-file)
                  (read-string (slurp config-file)))
         webhook-url (or (:webhook-url config)
-                       (System/getenv "IAMWAITING_WEBHOOK_URL"))]
-    {:webhook-url webhook-url}))
+                       (System/getenv "IAMWAITING_WEBHOOK_URL"))
+        user-id (or (:user-id config)
+                   (System/getenv "IAMWAITING_USER_ID"))]
+    {:webhook-url webhook-url
+     :user-id user-id}))
 
 (defn send-discord-webhook [webhook-url message]
   "Send a message to Discord via webhook"
@@ -31,7 +34,7 @@
     (catch Exception e
       {:success false :error (.getMessage e)})))
 
-(defn format-waiting-message [event-data]
+(defn format-waiting-message [event-data user-id]
   "Format a message for Claude waiting event"
   (let [cwd (or (:cwd event-data) (System/getProperty "user.dir"))
         project-name (fs/file-name cwd)
@@ -43,8 +46,15 @@
         permission-mode (:permission_mode event-data)
         hook-message (:message event-data)
         transcript-path (:transcript_path event-data)
-        transcript-file (when transcript-path (fs/file-name transcript-path))]
-    (str "⏳ **Claude is waiting** in `" project-name "`\n"
+        transcript-file (when transcript-path (fs/file-name transcript-path))
+        ;; Check if this is a permission prompt
+        is-permission-prompt? (or (= notification-type "permission_prompt")
+                                 (some? permission-mode))
+        ;; Ping user if configured and it's a permission prompt
+        user-ping (when (and user-id is-permission-prompt?)
+                   (str "<@" user-id "> "))]
+    (str user-ping
+         "⏳ **Claude is waiting** in `" project-name "`\n"
          "📁 Path: `" cwd "`\n"
          "🕐 Time: " formatted-time "\n"
          (when session-id (str "🔑 Session: `" session-id "`\n"))
@@ -66,13 +76,25 @@
       (println "Error: webhook URL cannot be empty")
       (System/exit 1))
 
-    ;; Create config directory
-    (fs/create-dirs (fs/parent config-file))
+    (println "\nEnter your Discord user ID (optional, for @mentions on permission prompts):")
+    (println "(Get this from Discord: User Settings > Advanced > Developer Mode, then right-click your name)\n")
+    (print "> ")
+    (flush)
+    (let [user-id-input (str/trim (read-line))
+          user-id (when-not (str/blank? user-id-input) user-id-input)
+          config (if user-id
+                   {:webhook-url webhook-url :user-id user-id}
+                   {:webhook-url webhook-url})]
 
-    ;; Write config
-    (spit config-file (pr-str {:webhook-url webhook-url}))
-    (println "\n✓ Configuration saved to" config-file)
-    (println "\nTest the webhook with: ./iamwaiting test")))
+      ;; Create config directory
+      (fs/create-dirs (fs/parent config-file))
+
+      ;; Write config
+      (spit config-file (pr-str config))
+      (println "\n✓ Configuration saved to" config-file)
+      (when user-id
+        (println "✓ User ID configured - you will be @mentioned on permission prompts"))
+      (println "\nTest the webhook with: ./iamwaiting test"))))
 
 (defn test-webhook []
   "Test the webhook configuration"
@@ -119,7 +141,7 @@
                               (json/parse-string (first event-data-args) true)
                               (catch Exception _ {})))
                           {})
-            message (format-waiting-message event-data)
+            message (format-waiting-message event-data (:user-id config))
             result (send-discord-webhook (:webhook-url config) message)]
         (if (:success result)
           (println "✓ Notification sent")