## Why #25450 attempts a broad `SandboxPolicy` removal across several unrelated surfaces, which makes it hard to review and still leaves new helper code moving legacy policies around. This PR is a narrower alternative: migrate only the exec-side Windows sandbox plumbing so the review can focus on one production path and one compatibility boundary. The goal is to stop threading `SandboxPolicy` through exec code without expanding the migration into app-server, protocol, telemetry, config, or session behavior. ## What changed - Removed `ExecRequest::compatibility_sandbox_policy()`. - Changed the Windows restricted-token and elevated filesystem override helpers to accept `PermissionProfile` plus the split filesystem/network policies instead of a `SandboxPolicy`. - Kept the remaining legacy projection local to the writable-root comparison that still needs to compare split policy behavior against the legacy Windows backend model. - Rejected restricted split filesystem policies that still grant full-disk writes before using the Windows restricted-token backend, preserving the previous clear-failure behavior for profiles that project to `ExternalSandbox`. - Updated the Windows sandbox override tests to exercise the new call shape and cover the full-write split-profile regression. ## Verification - `just test -p codex-core windows_restricted_token` - `just test -p codex-core windows_elevated`
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.
