At an announcement on last Wednesday about plans to bolster the tourism workforce as the country’s borders reopened, Nash said the country would continue to focus on “big spender” visitors. “In terms of targeting our marketing spin, it is unashamedly going to be at … high-quality tourists,” he said.

请问plans在这里是什么词性？是动词还是名词？如果是动词，为什么不用动名词形式？如果是名词词性的话，那to bolster。。。就是plans的后置定语了？

谢谢！