## Why This is the second PR in the Windows fs-helper sandbox stack. The fs-helper path needs a Windows sandbox launcher that has the same argv-shaped contract as macOS `sandbox-exec` and `codex-linux-sandbox`, but this PR only introduces that hidden launcher. It does not route fs-helper through it yet. The hidden launcher still needs to be policy-complete before later direct-spawn callers use it. In particular, it has to carry the same Windows sandbox policy details that the existing spawn paths already understand: proxy enforcement, read/write root overrides, and deny-read/deny-write overrides. ## What Changed - Added the hidden `codex.exe --run-as-windows-sandbox` arg1 dispatch path. - Added `windows-sandbox-rs/src/wrapper.rs`, which parses the wrapper argv, launches the requested command through the shared Windows sandbox session runner from PR1, and forwards stdio. - Added `create_windows_sandbox_command_args_for_permission_profile()` so later direct-spawn callers can build the wrapper argv consistently. - Made the wrapper argv round-trip the full Windows sandbox policy surface it needs later: workspace roots, environment, permission profile, sandbox level, private desktop, proxy enforcement, read/write root overrides, and deny-read/deny-write overrides. - Carried `proxy_enforced` through the shared Windows session request so proxy-managed executions continue to use the offline/elevated sandbox identity. - Added wrapper argument round-trip coverage for the full policy fields. ## Verification - `just test -p codex-windows-sandbox windows_wrapper_args_round_trip` - `just test -p codex-arg0` - `just test -p codex-core exec::tests::windows_` - `just fix -p codex-windows-sandbox -p codex-core -p codex-cli` Local note: the full `just fmt` command still fails on this workstation in non-Rust formatter setup (`uv` cache access denied and missing `dotslash`/buildifier), but the Rust formatter phase completed.
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
Run the following on Mac or Linux to install Codex CLI:
curl -fsSL https://chatgpt.com/codex/install.sh | sh
Run the following on Windows to install Codex CLI:
powershell -ExecutionPolicy ByPass -c "irm https://chatgpt.com/codex/install.ps1 | iex"
Codex CLI can also be installed via the following package managers:
# 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.
