## Why `codex-app-server` currently owns both request-processing code and transport implementation details. Splitting the transport layer into its own crate makes that boundary explicit, reduces the amount of transport-specific dependency surface carried by `codex-app-server`, and gives future transport work a narrower place to evolve. ## What changed - Added `codex-app-server-transport` and moved the existing transport tree into it, including stdio, unix socket, websocket, remote-control transport, and websocket auth. - Moved shared transport-facing message types into the new crate so both the transport implementation and `codex-app-server` use the same definitions. - Kept processor-facing connection state and outbound routing in `codex-app-server`, with the routing tests moved next to that local wrapper. - Updated workspace metadata, Bazel crate metadata, and `codex-app-server` dependencies for the new crate boundary. ## Validation - `cargo metadata --locked --no-deps` - `git diff --check` - Attempted `cargo test -p codex-app-server-transport`, `cargo test -p codex-app-server`, `just fix -p codex-app-server-transport`, and `just fix -p codex-app-server`; all were blocked before compilation by the existing `packageproxy` resolution failure for locked `rustls-webpki = 0.103.13`. - Attempted Bazel build / lockfile validation; those were blocked by external fetch failures against BuildBuddy / GitHub while resolving `v8`.
npm i -g @openai/codex
or brew install --cask codex
Codex CLI is a coding agent from OpenAI that runs locally on your computer.
If you want Codex in your code editor (VS Code, Cursor, Windsurf), install in your IDE.
If you want the desktop app experience, run
codex app or visit the Codex App page.
If you are looking for the cloud-based agent from OpenAI, Codex Web, go to chatgpt.com/codex.
Quickstart
Installing and running Codex CLI
Install globally with your preferred package manager:
# Install using npm
npm install -g @openai/codex
# Install using Homebrew
brew install --cask codex
Then simply run codex to get started.
You can also go to the latest GitHub Release and download the appropriate binary for your platform.
Each GitHub Release contains many executables, but in practice, you likely want one of these:
- macOS
- Apple Silicon/arm64:
codex-aarch64-apple-darwin.tar.gz - x86_64 (older Mac hardware):
codex-x86_64-apple-darwin.tar.gz
- Apple Silicon/arm64:
- Linux
- x86_64:
codex-x86_64-unknown-linux-musl.tar.gz - arm64:
codex-aarch64-unknown-linux-musl.tar.gz
- x86_64:
Each archive contains a single entry with the platform baked into the name (e.g., codex-x86_64-unknown-linux-musl), so you likely want to rename it to codex after extracting it.
Using Codex with your ChatGPT plan
Run codex and select Sign in with ChatGPT. We recommend signing into your ChatGPT account to use Codex as part of your Plus, Pro, Business, Edu, or Enterprise plan. Learn more about what's included in your ChatGPT plan.
You can also use Codex with an API key, but this requires additional setup.
Docs
This repository is licensed under the Apache-2.0 License.
