Is “He was mocked by Zhuge Liang and served as a messenger demanding Jingzhou.” true?

based on fact

In official history, Zhuge Jin was a meritorious diplomat of Wu, repeatedly remonstrating with Sun Quan; in the novel, he is portrayed as a pathetic messenger shuttling between Shu and Wu.

Zhuge Jin

In official history, he was a broad-minded general of Eastern Wu, highly esteemed by Sun Quan.

Other claims about Zhuge Jin