chore(consistency): sync task status from DB [auto]

Updated by fix-consistency on 2026-09-04:
  - update .custodian-brief.md for rein-aharness

Assistant: codex
Assistant-Model: gpt-5.6-sol
Assistant-Session: 01a06ba0-10aa-7ea0-b20a-4f3fac39efe9

tests/test_adapter.py

@@ -111,11 +111,58 @@ def test_execute_streaming_raises_timeout(tmp_path) -> None:
 def test_execute_blocking_path_unchanged_without_callback(tmp_path) -> None:
     adapter = AgenticClaudeCodeAdapter(workdir=tmp_path)
     config = RunConfig(timeout_seconds=30)
-    fake_result = MagicMock(returncode=0, stdout="plain output", stderr="")
+    proc = MagicMock()
+    proc.communicate.return_value = ("plain output", "")
+    proc.returncode = 0
+    proc.poll.return_value = 0
 
-    with patch("rein_aharness.adapter.subprocess.run", return_value=fake_result) as run:
+    with patch("rein_aharness.adapter.subprocess.Popen", return_value=proc) as popen:
         response = adapter.execute_prompt("do it", config)
 
     assert response.content == "plain output"
-    argv = run.call_args.args[0]
+    argv = popen.call_args.args[0]
     assert "--output-format" not in argv
+    proc.communicate.assert_called_once()
+
+
+def test_blocking_cancel_kills_process_and_raises(tmp_path) -> None:
+    from rein_aharness.execution_cancel import ExecutionCancel, ExecutionCancelled
+
+    cancel = ExecutionCancel()
+    adapter = AgenticClaudeCodeAdapter(workdir=tmp_path, cancel=cancel)
+    config = RunConfig(timeout_seconds=30)
+    proc = MagicMock()
+    proc.poll.return_value = None
+
+    def _communicate(input=None, timeout=None):  # noqa: A002
+        cancel.cancel("lease-loss")
+        raise RuntimeError("subprocess interrupted")
+
+    proc.communicate.side_effect = _communicate
+
+    with patch("rein_aharness.adapter.subprocess.Popen", return_value=proc):
+        with pytest.raises(ExecutionCancelled, match="lease-loss"):
+            adapter.execute_prompt("do it", config)
+    proc.kill.assert_called_once()
+
+
+def test_streaming_cancel_refuses_nonzero_exit(tmp_path) -> None:
+    from rein_aharness.execution_cancel import ExecutionCancel, ExecutionCancelled
+
+    cancel = ExecutionCancel()
+    adapter = AgenticClaudeCodeAdapter(
+        workdir=tmp_path, on_tool_event=lambda e: None, cancel=cancel
+    )
+    config = RunConfig(timeout_seconds=30)
+    proc = _fake_proc([])
+    proc.poll.return_value = None
+
+    def _wait(timeout=None):
+        cancel.cancel("signal")
+        return 1
+
+    proc.wait.side_effect = _wait
+
+    with patch("rein_aharness.adapter.subprocess.Popen", return_value=proc):
+        with pytest.raises(ExecutionCancelled, match="signal"):
+            adapter.execute_prompt("do it", config)