18天光速打脸，OpenAI刚夸TypeScript最合适，转头就用Rust重写Codex CLI

Core Insights - OpenAI has officially launched Codex, an AI coding tool, which is currently available to ChatGPT Plus users with a flexible usage limit during peak demand periods [1][2] - Codex now has internet access capabilities, allowing users to install dependencies, run tests requiring external resources, and upgrade software packages [2][3] - The Codex CLI has been rewritten in Rust to enhance performance and security, moving away from Node.js dependencies [2][9] Group 1: Product Features - Codex is an experimental coding assistant that can run in the ChatGPT web browser and locally via Codex CLI, featuring a chat-based user interface [3] - The Codex CLI supports both interactive and non-interactive modes, designed for developers who prefer terminal usage while maintaining version control [3][4] - The tool is open-source on GitHub, currently receiving active development and community feedback [4] Group 2: Technical Improvements - The transition to Rust aims to achieve zero-dependency installation, improved sandboxing for security, and enhanced performance by eliminating runtime garbage collection [12][13] - Rust's implementation allows Codex CLI to function as both a client and server for the Model Context Protocol (MCP) [12] - Despite the shift to Rust, the Codex CLI will still support extensions in JavaScript, Python, and other languages [13] Group 3: Industry Trends - The trend of rewriting tools in Rust is gaining momentum, particularly in performance-sensitive applications, as seen with other projects like Vite and Zed [14][16] - Rust is recognized for its efficiency compared to JavaScript, although it presents higher development complexity [14]