// From newest: A2(2), Q2(2+2=4), assistant(500+4=504), Short(5+504=509) => all fit
        assertEquals(4, request.getMessages().size());
    }

    @Test
    public void test_addIntentHistory_maxMessages() {
        final List<LlmMessage> history = new ArrayList<>();
        for (int i = 0; i < 10; i++) {
            history.add(LlmMessage.user("Q" + i));
        }