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## Why Recent `rust-ci-full` failures were dominated by transient Windows timeout clusters in process-heavy tests such as `suite::resume`, `suite::cli_stream`, `suite::auth_env`, `start_thread_uses_all_default_environments_from_codex_home`, and `connect_stdio_command_initializes_json_rpc_client_on_windows`. The goal here is to make those known flaky paths less likely to fail full CI without relaxing the global nextest timeout policy. ## What changed - Enable one global nextest retry with `retries = 1` so a single transient failure can recover. - Add a `windows_process_heavy` test group with `max-threads = 2` for the recurring Windows subprocess/session-heavy timeout families. - Add Windows-only slow-timeout overrides for that process-heavy group. - Add a narrower Windows-only timeout override for `start_thread_uses_all_default_environments_from_codex_home`, which still exceeded the broader Windows bucket in both Windows full-CI lanes. - Increase the `rust-ci-full` nextest job timeout from `45m` to `60m` so Windows ARM64 still has job-level headroom after retries and targeted per-test timeout increases. - Keep the global `slow-timeout` unchanged at `15s`. ## Validation Validated through `rust-ci-full` GitHub Actions reruns on this PR. Observed improvement on the tuned Windows lanes: - Windows x64 went from `5 timed out` to `0 timed out`. - Windows ARM64 went from `2 timed out` to `0 timed out`. - `start_thread_uses_all_default_environments_from_codex_home` recovered as a flaky pass on Windows ARM64 instead of timing out. The remaining failing tests in those runs were unrelated hard failures outside this nextest timeout tuning.
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.