Developed an enhancement for the koreader/koreader repository focused on improving URL encoding for special characters, specifically parentheses and quotes. Addressed edge-case failures in URL-driven features by refining the util.urlEncode function, ensuring more robust and reliable handling of URLs throughout the application. The work involved backend development and API design using Lua, targeting scenarios where improper encoding could disrupt user workflows or cause feature instability. By concentrating on precise character encoding, the update mitigated potential errors and contributed to a smoother user experience. The contribution demonstrated attention to detail in backend processes and a methodical approach to problem-solving within Lua environments.