In Chinese government, a leader’s short written comment on a report or document is called a pishi (批示), a written instruction. It turns the document into a task for the people below.
In 2016, Xi Jinping wrote such an instruction on the study of Mao Zedong’s essay on the working methods of Party committees. The Central Organization Department then issued a notice to carry it out. According to the Party’s news site, the instruction set clear requirements for every member of every Party leadership team, and especially for its principal leaders.