Contributed targeted documentation enhancements to the openai/codex repository, focusing on updating MCP subcommands to reflect new authentication options. The work involved analyzing recent authentication flow changes and revising technical documentation to clarify usage and integration steps for developers. By aligning the documentation with current security practices, the update aimed to reduce confusion and integration risk for teams adopting the latest features. The effort required proficiency in Rust and technical writing, ensuring that the documentation accurately described command-line behaviors and security implications. This contribution strengthened developer onboarding and provided clearer guidance for integrating authentication within Rust-based workflows.