fix: hide internal cron prompts from webui

tests/agent/test_loop_save_turn.py

@@ -181,6 +181,31 @@ async def test_generate_webui_title_ignores_command_only_sessions(tmp_path: Path
     loop.provider.chat_with_retry.assert_not_awaited()
 
 
+@pytest.mark.asyncio
+async def test_generate_webui_title_ignores_cron_internal_turns(tmp_path: Path) -> None:
+    loop = _make_full_loop(tmp_path)
+    session = loop.sessions.get_or_create("websocket:cron-title")
+    session.metadata[WEBUI_SESSION_METADATA_KEY] = True
+    session.add_message(
+        "user",
+        "Scheduled cron job triggered: 30s-test\n\nInternal reminder prompt",
+        **{CRON_HISTORY_META: True},
+    )
+    session.add_message("assistant", "提醒已经到期。")
+    loop.sessions.save(session)
+
+    generated = await maybe_generate_webui_title(
+        sessions=loop.sessions,
+        session_key="websocket:cron-title",
+        provider=loop.provider,
+        model=loop.model,
+    )
+
+    assert generated is False
+    assert WEBUI_TITLE_METADATA_KEY not in session.metadata
+    loop.provider.chat_with_retry.assert_not_awaited()
+
+
 def test_webui_title_update_uses_captured_llm_runtime(
     tmp_path: Path,
     monkeypatch: pytest.MonkeyPatch,

tests/channels/test_websocket_channel.py

@@ -2866,3 +2866,49 @@ def test_handle_webui_thread_get_backfills_legacy_missing_user_rows(
         "legacy question",
         "legacy answer",
     ]
+
+
+def test_handle_webui_thread_get_does_not_backfill_cron_internal_prompt(
+    tmp_path,
+    monkeypatch,
+) -> None:
+    from urllib.parse import quote
+
+    from websockets.datastructures import Headers
+    from websockets.http11 import Request
+
+    from nanobot.cron.session_turns import CRON_HISTORY_META
+    from nanobot.webui.transcript import append_transcript_object
+
+    monkeypatch.setattr("nanobot.config.paths.get_data_dir", lambda: tmp_path)
+    workspace = tmp_path / "workspace"
+    sessions = SessionManager(workspace)
+    key = "websocket:c-cron"
+    session = sessions.get_or_create(key)
+    session.add_message(
+        "user",
+        "Scheduled cron job triggered: 30s-test\n\nInternal reminder prompt",
+        **{CRON_HISTORY_META: True},
+    )
+    session.add_message("assistant", "提醒已经到期。")
+    sessions.save(session)
+    append_transcript_object(
+        key,
+        {"event": "message", "chat_id": "c-cron", "text": "提醒已经到期。"},
+    )
+
+    bus = MagicMock()
+    channel = WebSocketChannel(
+        {"enabled": True, "allowFrom": ["*"]},
+        bus,
+        gateway=_basic_handler(bus, session_manager=sessions, workspace_path=workspace),
+    )
+    channel.gateway.tokens.api_tokens["tok"] = time.monotonic() + 300.0
+    enc = quote(key, safe="")
+    req = Request(f"/api/sessions/{enc}/webui-thread", Headers([("Authorization", "Bearer tok")]))
+    resp = channel.gateway.http._handle_webui_thread_get(req, enc)
+
+    assert resp.status_code == 200
+    body = json.loads(resp.body.decode())
+    assert [message["role"] for message in body["messages"]] == ["assistant"]
+    assert [message["content"] for message in body["messages"]] == ["提醒已经到期。"]

tests/webui/test_session_list_index.py

@@ -3,6 +3,7 @@ from __future__ import annotations
 from pathlib import Path
 
 import nanobot.webui.session_list_index as session_list_index
+from nanobot.cron.session_turns import CRON_HISTORY_META
 from nanobot.session.manager import SessionManager
 
 
@@ -71,5 +72,19 @@ def test_webui_session_list_drops_deleted_index_rows(tmp_path: Path) -> None:
     assert list_webui_sessions(manager) == []
 
 
+def test_webui_session_list_skips_cron_internal_user_preview(tmp_path: Path) -> None:
+    manager = SessionManager(tmp_path)
+    session = manager.get_or_create("websocket:cron-preview")
+    session.add_message(
+        "user",
+        "Scheduled cron job triggered: 30s-test\n\nInternal reminder prompt",
+        **{CRON_HISTORY_META: True},
+    )
+    session.add_message("assistant", "提醒已经到期。")
+    manager.save(session)
+
+    assert list_webui_sessions(manager)[0]["preview"] == "提醒已经到期。"
+
+
 def list_webui_sessions(manager: SessionManager) -> list[dict]:
     return session_list_index.list_webui_sessions(manager)