Zhanb worked on improving the MoonBit documentation within the moonbitlang/moonbit-docs repository, focusing on safer string handling in code examples. By refactoring the tour documentation, Zhanb replaced deprecated uses of .char_at(index) with the safer .get_char(index).unwrap() pattern, directly addressing compiler warnings and reinforcing best practices for handling Result types in MoonBit. This targeted update not only cleaned up warnings but also enhanced the reliability and clarity of onboarding materials for new contributors. Zhanb’s work demonstrated attention to detail in code refactoring and documentation, leveraging MoonBit’s language features to improve both code safety and documentation quality.