assertTrue(systemPrompt.contains("user message here"));
        assertTrue(systemPrompt.contains("failed query here"));
        assertTrue(systemPrompt.contains("no_results"));
        // Verify placeholders are replaced
        assertFalse(systemPrompt.contains("{{userMessage}}"));
        assertFalse(systemPrompt.contains("{{failedQuery}}"));
        assertFalse(systemPrompt.contains("{{failureReason}}"));
    }