What is chat-codex?

Chat-Codex is a TypeScript middleware tool that connects the Codex AI coding agent to WeChat and Feishu (also known as Lark) messaging apps. The problem it solves is that Codex normally runs as a desktop or terminal tool, but Chat-Codex lets you control it, approve its actions, check its progress, and receive files it produces all from within a private chat message. Each chat conversation gets its own isolated Codex session, so parallel conversations can run separate coding tasks without mixing context. You send a message in WeChat or Feishu, the middleware routes it to the right Codex session on your local machine, and the AI response comes back into your chat. You can also use in-chat commands to create new sessions, switch models, approve or reject actions requiring permission, send files, and check status. It runs on Node.js, is written in TypeScript using React for the terminal interface, and stores all state locally. You would use this when you want to remotely trigger and monitor AI coding tasks on your machine through a familiar messaging app without being physically at your computer.