During June 2025, Psi Cmd focused on enhancing the ustclug/Linux201-docs repository by developing comprehensive documentation for SSH escape sequences. They applied technical writing and documentation skills, using Markdown and Git-based workflows to clarify the syntax and practical usage of SSH escape sequences, including disconnect, suspend, and port forwarding commands. By providing detailed examples and explanations, Psi Cmd improved developer understanding of SSH session controls, enabling faster troubleshooting and reducing support queries. The work demonstrated a solid grasp of SSH concepts and addressed onboarding challenges, though the scope was limited to documentation without direct code contributions or bug fixes during this period.