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## Why The thread lifecycle contributor hooks from #22476 should observe every session teardown. The explicit `Op::Shutdown` path already emitted `on_thread_stop`, but when `submission_loop` exited because its submission channel closed, it only tore down runtime services. That meant extensions could miss the thread-stop lifecycle signal on implicit runtime shutdown. ## What Changed - Split shared runtime teardown into `shutdown_runtime_services(...)`. - Split thread-stop lifecycle emission into `emit_thread_stop_lifecycle(...)`. - Reused those helpers from both explicit shutdown and the channel-close shutdown path. - Tracked whether `Op::Shutdown` was received so the explicit path does not double-emit lifecycle events after it exits the loop. - Added a regression test that closes the submission channel and asserts `ThreadLifecycleContributor::on_thread_stop` runs once with the expected thread/session stores. ## Testing - `cargo test -p codex-core submission_loop_channel_close_emits_thread_stop_lifecycle`
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.