Worked on a focused refactor of the Relayer CLI in the clangenb/polkadot-sdk repository, delivering a streamlined approach to connection configuration. Consolidated multiple legacy arguments into a single URI parameter, replacing host, port, path, and secure options to reduce configuration complexity and potential errors. This change improved maintainability and aligned the CLI with an API-driven design, making it easier for downstream consumers to adopt and extend. Utilized Rust and Shell scripting to implement the refactor, emphasizing code hygiene and traceability. The work established a scalable pattern for future CLI changes and enhanced overall system integration within the project.