fix: guard transient controls and verify timeline endpoints

tests/unit/agents/test_flash_runner.py

@@ -134,7 +134,9 @@ async def test_fallback_observation_renders_the_indexed_ui_list(mock_context, tm
 
     assert post == _POST_IMG
     assert isinstance(exec_result.ui_elements_text, str)
-    assert exec_result.ui_elements_text == "[1] Text: 'Settings' | Bounds: [37,50][962,112]"
+    assert exec_result.ui_elements_text == (
+        "[1] Text: 'Settings' | Bounds: [37,50][962,112] | resource_id: 'android:id/title'"
+    )
     assert "{'text'" not in exec_result.ui_elements_text
     # State refreshed exactly as the executor's success path does.
     assert state.indexed_elements[0]["index"] == 1

tests/unit/agents/test_validator.py

@@ -23,6 +23,7 @@ feeds the safety-net XML validation.
 
 import json
 from unittest.mock import AsyncMock, MagicMock, Mock, patch
+from uuid import uuid4
 
 from langchain_core.messages import AIMessage
 import pytest
@@ -309,6 +310,48 @@ async def test_validator_burst_success_executes_every_member(
     assert len(mock_mcp.calls_for("click")) == 2
 
 
+@pytest.mark.asyncio
+@pytest.mark.parametrize("post_image", ["screenshot", "new-sequence-image"])
+async def test_sequence_captures_once_after_whole_burst_and_retains_equal_hash(
+    mock_mcp, mock_context, temp_screenshot, post_image
+):
+    events = []
+
+    def action(name, args):
+        events.append(name)
+        return True, ""
+
+    def screenshot():
+        events.append("capture")
+        return "ZHVtbXlfZGF0YQ=="
+
+    mock_mcp.action_handler = action
+    mock_mcp.screenshot = screenshot
+    mock_context.data_engine.get_or_create_image.return_value = post_image
+    mock_context.data_engine.get_image_path.return_value = temp_screenshot
+    state = DummyState(
+        structured_decisions=json.dumps(
+            [
+                {
+                    "action": "action_sequence",
+                    "args": {"steps": [{"action": "wait", "time_in_ms": 1}]},
+                },
+                {"action": "tap", "coordinates": [105, 205]},
+            ]
+        ),
+        latest_screenshot=temp_screenshot,
+        current_step_id=str(uuid4()),
+    )
+
+    result = await ValidatorNode(mock_context)(state)
+
+    assert result["last_execution_result"]["status"] == "dispatched"
+    assert events == ["action_sequence", "click", "capture"]
+    assert mock_context.data_engine.update_step_execution_result.call_args.kwargs == {
+        "post_image_name": post_image
+    }
+
+
 @pytest.mark.asyncio
 async def test_validator_success_closes_open_incident(mock_mcp, mock_context, temp_screenshot):
     """A successful turn closes whatever incident was still open."""