Codex CLI is a local coding agent from OpenAI that can be installed using npm or Homebrew. Users can run Codex after installation and sign in with their ChatGPT account for enhanced functionality. The tool supports various platforms and offers configuration options to tailor user experience.

Codex CLI is transitioning to a native version written in Rust to improve cross-platform stability, performance, and security. The new version aims to reduce dependencies, enhance extensibility, and maintain feature parity with the TypeScript implementation. Feedback from the community continues to shape ongoing development, with an invitation for contributors to join the effort.