diff --git a/adapter/telegram/handlers/commands.py b/adapter/telegram/handlers/commands.py
index 65efead..3933826 100644
--- a/adapter/telegram/handlers/commands.py
+++ b/adapter/telegram/handlers/commands.py
@@ -54,6 +54,7 @@ async def cmd_archive(message: Message) -> None:
     except TelegramBadRequest as e:
         logger.warning("cmd_archive_bot_error", error=str(e))
     db.archive_chat(user_id=user_id, thread_id=thread_id)
+    await message.answer("Чат архивирован.")
     logger.info("cmd_archive", user_id=user_id, thread_id=thread_id)
 
 
diff --git a/adapter/telegram/handlers/topic_events.py b/adapter/telegram/handlers/topic_events.py
index 4f899d1..3ad8750 100644
--- a/adapter/telegram/handlers/topic_events.py
+++ b/adapter/telegram/handlers/topic_events.py
@@ -13,7 +13,13 @@ router = Router(name="topic_events")
 
 @router.message(F.forum_topic_created)
 async def on_topic_created(message: Message) -> None:
-    """User created a topic via Telegram UI — register it as a new chat."""
+    """User created a topic via Telegram UI — register it as a new chat.
+
+    Skip topics created by the bot itself — those are already registered
+    by cmd_new at the time create_forum_topic() is called.
+    """
+    if message.from_user is None or message.from_user.id == message.bot.id:
+        return
     user_id = message.from_user.id
     thread_id = message.message_thread_id
     name = message.forum_topic_created.name
diff --git a/sdk/mock.py b/sdk/mock.py
index 353a774..105b715 100644
--- a/sdk/mock.py
+++ b/sdk/mock.py
@@ -99,23 +99,19 @@ class MockPlatformClient:
         attachments: list[Attachment] | None = None,
     ) -> AsyncIterator[MessageChunk]:
         """
-        Сейчас: один чанк с полным ответом (sync под капотом).
-        При реальном SDK: заменить на SSE/WebSocket итератор в platform/mock.py.
+        Сейчас: один чанк с полным ответом.
+        При реальном SDK: заменить на SSE/WebSocket итератор.
         Адаптеры переписывать не нужно.
         """
         await self._latency(200, 600)
         message_id, response, tokens = self._build_response(user_id, chat_id, text, attachments)
         logger.info("stream_message", user_id=user_id, chat_id=chat_id, message_id=message_id)
-
-        async def _gen() -> AsyncIterator[MessageChunk]:
-            yield MessageChunk(
-                message_id=message_id,
-                delta=response,
-                finished=True,
-                tokens_used=tokens,
-            )
-
-        return _gen()
+        yield MessageChunk(
+            message_id=message_id,
+            delta=response,
+            finished=True,
+            tokens_used=tokens,
+        )
 
     # --------------------------------------------------------------- settings
 
diff --git a/tests/adapter/telegram/test_topic_events.py b/tests/adapter/telegram/test_topic_events.py
index 3de9a78..fb490af 100644
--- a/tests/adapter/telegram/test_topic_events.py
+++ b/tests/adapter/telegram/test_topic_events.py
@@ -16,6 +16,9 @@ def fresh_db(tmp_path, monkeypatch):
     return db_mod
 
 
+BOT_ID = 9999  # distinct from any test user_id
+
+
 def make_service_message(*, user_id=1, thread_id=42, topic_name="Мой чат"):
     m = SimpleNamespace()
     m.message_thread_id = thread_id
@@ -25,6 +28,7 @@ def make_service_message(*, user_id=1, thread_id=42, topic_name="Мой чат")
     m.forum_topic_edited = SimpleNamespace(name="Новое имя")
     m.forum_topic_closed = SimpleNamespace()
     m.answer = AsyncMock()
+    m.bot = SimpleNamespace(id=BOT_ID)
     return m