Worked on enhancing the Codex codebase with a focus on dependency stability, modularity, and command-line usability. Refactored the Cloud Tasks module in the openai/codex repository to leverage workspace dependencies, streamlining development and improving maintainability. Improved the Codex CLI’s Zsh completion, clarifying command options and reducing ambiguity for end users. In the zed-industries/codex repository, aligned Cloud Tasks dependencies across the workspace to ensure consistent versions and stable builds. Employed Rust, Cargo, and modular programming techniques throughout, emphasizing clear dependency management and a better developer experience. The work addressed both internal maintainability and user-facing command-line interface improvements.