message: Check for read-mode in test
diff: @@ -245,6 +245,8 @@ describeFullCompat("AgentScheduler", (getTestObjectProvider) => {
  await provider.ensureSynchronized();
  + assert.strict(!container1.deltaManager.active, "Expected read mode");
  +
  // Since we start in read mode, we shouldn't be able to successfully get the task even after volunteering
  assert.strict(!taskSubscription.haveTask(), "Got task in read mode");
  