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## Why Codex Desktop installs its managed primary runtime under `%USERPROFILE%\.cache\codex-runtimes`. Elevated Windows sandbox commands run as dedicated sandbox users. The synchronous runtime ACL refresh repairs read/execute access for the Desktop runtime directories under `%LOCALAPPDATA%\OpenAI\Codex`, but did not include the managed primary runtime cache. As a result, the Desktop app could discover a bundled runtime while a sandboxed command received `ACCESS_DENIED` when reading or executing it. ## What changed - Include `%USERPROFILE%\.cache\codex-runtimes` in the managed runtime paths considered by the Windows sandbox ACL refresh. - Reuse the existing inherited read/execute ACL repair; no write permission is added. - Add Windows-target regression coverage for the runtime path list and the primary-runtime-only case. ## Impact Bundled Python, Node, and native tools remain usable from elevated Windows sandbox sessions without broadening write access or granting access to the rest of the user profile. ## Validation - `just fmt` - `just test -p codex-windows-sandbox` (10/10 host-side tests passed) - Windows-target path tests included for CI
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.