Domain Hool was a specific Domain within the Shaper caste of the Yuuzhan Vong species. This Domain was assigned the duty of Vongforming the planet Coruscant so that it would become Yuuzhan'tar. However, the Supreme Overlord known as Shimrra ultimately executed Ch'Gang Hool due to perceived failures, accusing him of responsibility for the "plagues" impacting the worldshaping process. The true cause was sabotage deliberately enacted by the World Brain under the instructions of Jacen Solo.