test(agent-runner): strengthen local agent e2e gate

tests/unit_tests/test_skill_service.py

@@ -2,6 +2,7 @@ from types import SimpleNamespace
 from unittest.mock import AsyncMock
 
 import pytest
+from langbot_plugin.entities.io.errors import ActionCallTimeoutError
 
 from langbot.pkg.api.http.service.skill import SkillService
 
@@ -82,6 +83,17 @@ class TestRequireBoxForWrite:
         service = SkillService(self._ap_with_disabled_box())
         assert await service.list_skills() == []
 
+    @pytest.mark.asyncio
+    async def test_list_skills_returns_empty_when_box_action_times_out(self):
+        """A transient Box list failure should not break unrelated extension surfaces."""
+        box_service = SimpleNamespace(
+            available=True,
+            list_skills=AsyncMock(side_effect=ActionCallTimeoutError('Action box_list_skills call timed out')),
+        )
+        service = SkillService(SimpleNamespace(skill_mgr=SimpleNamespace(reload_skills=AsyncMock()), box_service=box_service))
+
+        assert await service.list_skills() == []
+
     @pytest.mark.asyncio
     async def test_read_skill_file_refused_when_box_unavailable(self):
         service = SkillService(self._ap_with_disabled_box())