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## Why The package builder should describe the binaries it is actually packaging, not require callers to restate release metadata out of band. A caller-provided `--version` flag can drift from the workspace version, but running the target entrypoint to discover its version breaks cross-target packages when the produced binary cannot execute on the build host. This PR keeps package metadata tied to the repository source of truth by reading `[workspace.package].version` from `codex-rs/Cargo.toml`. It also prepares the package layout for `codex-app-server` packages: the same package structure can now represent either the CLI entrypoint or the app-server entrypoint while keeping shared sidecars such as `rg`, `bwrap`, and Windows sandbox helpers in the existing package directories. ## What changed - Removes the `--version` CLI flag from `scripts/build_codex_package.py`. - Adds Cargo.toml version discovery for `codex-package.json.version` via `codex-rs/Cargo.toml`. - Adds `--entrypoint-bin` so callers can package a prebuilt entrypoint instead of rebuilding it with Cargo. - Makes `--variant` an explicit choice between `codex` and `codex-app-server`, and uses it to select the cargo binary and packaged `bin/` entrypoint name. - Updates `scripts/codex_package/README.md` to document variants, prebuilt entrypoints, and Cargo.toml version detection. ## Verification - Compiled `scripts/build_codex_package.py` and `scripts/codex_package/*.py` with `PYTHONDONTWRITEBYTECODE=1`. - Ran `scripts/build_codex_package.py --help` and verified `--version` is gone while `--variant` and `--entrypoint-bin` are present. - Verified the package builder reads version `0.0.0` from `codex-rs/Cargo.toml`. - Built a fake cross-target `codex-app-server` package using a non-executable `--entrypoint-bin`; verified metadata records version `0.0.0`, variant `codex-app-server`, and `bin/codex-app-server` as the entrypoint.
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.