diff --git a/CHANGELOG.md b/CHANGELOG.md
index c395f054..1e6fe6a2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,10 @@ PyPI version — not the changelog header.
 
 ## [2026-07-21]
 
+**feat(skills)** — telegram user_message_relay joins the sound layer: relay
+events now carry their own sound key so an inbound user message is audible
+like every other hook event (59/59 + 252 green).
+
 **fix(devpulse)** — watchdog stall threshold 120s → 300s: the 120s
 no-JSONL-activity heuristic fired `[watchdog.stall]` on healthy agents doing
 long tool calls; 300s matches observed real-stall behavior (verified live
diff --git a/src/aipass/skills/lib/telegram/apps/handlers/user_message_relay.py b/src/aipass/skills/lib/telegram/apps/handlers/user_message_relay.py
index 4fd271ca..4bf7b307 100644
--- a/src/aipass/skills/lib/telegram/apps/handlers/user_message_relay.py
+++ b/src/aipass/skills/lib/telegram/apps/handlers/user_message_relay.py
@@ -1,9 +1,9 @@
 # =================== AIPass ====================
 # Name: user_message_relay.py
 # Description: Relay user messages from non-TG doors to the branch TG chat
-# Version: 1.2.0
+# Version: 1.3.0
 # Created: 2026-07-14
-# Modified: 2026-07-14
+# Modified: 2026-07-20
 # =============================================
 
 """
@@ -187,6 +187,7 @@ def handle(hook_data: dict) -> dict:
         if send_user_message(bot_token, chat_id, prompt):
             _last_relay_hash = msg_hash
             logger.info("[TG] user message relayed to chat_id=%s", chat_id)
+            return {"stdout": "", "exit_code": 0, "sound": "user message relay"}
 
         return {"stdout": "", "exit_code": 0}
     except Exception as e:
diff --git a/src/aipass/skills/lib/telegram/tests/test_user_message_relay.py b/src/aipass/skills/lib/telegram/tests/test_user_message_relay.py
index 3f4154d8..8e4fa52d 100644
--- a/src/aipass/skills/lib/telegram/tests/test_user_message_relay.py
+++ b/src/aipass/skills/lib/telegram/tests/test_user_message_relay.py
@@ -271,6 +271,24 @@ class TestHandle:
         assert result["exit_code"] == 0
         mock_send.assert_called_once_with("123:FAKETOKEN", 42, "hello world")
 
+    def test_happy_path_has_sound_key(self, bot_dirs):
+        with patch.object(relay_mod, "send_user_message", return_value=True):
+            result = handle({"prompt": "hello world", "cwd": str(bot_dirs["work"])})
+        assert result["sound"] == "user message relay"
+
+    def test_send_failure_no_sound_key(self, bot_dirs):
+        with patch.object(relay_mod, "send_user_message", return_value=False):
+            result = handle({"prompt": "hello world", "cwd": str(bot_dirs["work"])})
+        assert "sound" not in result
+
+    def test_skips_no_bot_found_no_sound_key(self, tmp_path):
+        with (
+            patch.object(relay_mod, "MIRROR_DIR", tmp_path / "nope1"),
+            patch.object(relay_mod, "PENDING_DIR", tmp_path / "nope2"),
+        ):
+            result = handle({"prompt": "hello", "cwd": "/tmp/nowhere"})
+        assert "sound" not in result
+
     def test_updates_dedup_hash_on_success(self, bot_dirs):
         with patch.object(relay_mod, "send_user_message", return_value=True):
             handle({"prompt": "hello", "cwd": str(bot_dirs["work"])})