Yes, 江智 is a valid Chinese name. However, The Pinyin version of 江智 is written as Jiāng Zhì. The surname 江 could mean river. There are other people whose surname is Jiang, such as, Jiang Shuying, or 江疏影 in Chinese, an actress from mainland China, and Jiang Yiyan, or 江一燕 in Chinese, an actress from mainland China.
Here is a picture of Jiang Shuying.
Here is a picture of Jiang Yiyan.
The given name 智 could mean wise and wisdom. You could find that there are other people whose given name is 智, for example, Mao Zhi, or 茆智 in Chinese, an expert on water-saving irrigation from mainland China, and Wu Xinzhi, or 吴新智 in Chinese, a paleoanthropologist from mainland China.
Here is a picture of Mao Zhi.
Here is a picture of Wu Xinzhi.
Speaking of Jiāng Huì, since there are two surnames, i.e., 江 and 姜, sharing the same pronunciation Jiāng and there are numerous Chinese characters that could represent the given name Huì, Jiang Hui could refer to multiple Chinese names, for instance, 江慧, 江蕙, 江惠, 姜慧, 姜蕙, and 姜惠. And they are also valid Chinese names.