e4aa2b2c3b
Fixes #10248.
Replace println! in JSONL streaming with a locked stdout writer.
Treat ErrorKind::BrokenPipe as a graceful shutdown signal instead of panicking.
Add a regression test that closes stdout mid-stream and asserts a clean exit.
Why this looked like a 0.92.0 regression:
The panic-on-EPIPE behavior is older, but 0.92.0 appears to emit additional early --json stdout lines in some configurations.
In particular, 0.92.0 includes a new “under-development features enabled” warning event (c900de271, #9954) that prints to stdout in JSON mode.
More early stdout writes increase the chance of hitting EPIPE when downstream consumers (e.g., head, tee, detached runners) close the pipe mid-run.
This change makes --json streaming robust to stdout closure regardless of when it happens.
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 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, Team, 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.
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This repository is licensed under the Apache-2.0 License.