diff --git a/plugins/platforms/dingtalk/adapter.py b/plugins/platforms/dingtalk/adapter.py
index ccfdd0b73933e..a564c08e690a0 100644
--- a/plugins/platforms/dingtalk/adapter.py
+++ b/plugins/platforms/dingtalk/adapter.py
@@ -458,6 +458,12 @@ class DingTalkAdapter(BasePlatformAdapter):
                         loaded = [part.strip() for part in raw.split(",") if part.strip()]
                 patterns = loaded
 
+        if patterns is None:
+            # Parity with the historical inline implementation: return before
+            # evaluating ``self.name`` (avoids touching adapter attributes on
+            # the no-patterns path).
+            return []
+
         return compile_mention_patterns(
             patterns,
             log_prefix=self.name,
diff --git a/plugins/platforms/telegram/adapter.py b/plugins/platforms/telegram/adapter.py
index 686519c45da26..2b10a6ec4c613 100644
--- a/plugins/platforms/telegram/adapter.py
+++ b/plugins/platforms/telegram/adapter.py
@@ -7818,6 +7818,12 @@ class TelegramAdapter(BasePlatformAdapter):
                         loaded = [part.strip() for part in raw.split(",") if part.strip()]
                 patterns = loaded
 
+        if patterns is None:
+            # Parity with the historical inline implementation: return before
+            # evaluating ``self.name`` (tests construct bare adapters via
+            # object.__new__ that lack the attributes ``name`` reads).
+            return []
+
         return compile_mention_patterns(
             patterns,
             log_prefix=self.name,