Contributed a feature enhancement to the zsh-users/zsh repository by extending command-line completion for FreeBSD jails, allowing system administrators to complete both running and non-running jail names directly in the shell. This improvement was implemented using shell scripting and command line interface development skills, focusing on Unix/Linux system administration workflows. The enhancement addressed a common pain point by reducing manual lookup and minimizing command errors when referencing jails, particularly in automation and deployment scripts. The work reinforced the project’s commitment to robust and intuitive shell experiences, delivering a targeted solution that streamlines administrative tasks and improves overall command usability.