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## Why Windows sandboxed commands run as a sandbox user, while workspace repositories are usually owned by the real user. The sandbox compensates by injecting a temporary Git `safe.directory` entry into the child environment. That injection was still broken for linked worktrees because the helper followed the `.git` file's `gitdir:` pointer and injected the internal `.git/worktrees/...` location. Git's dubious-ownership check expects the worktree root instead, so sandboxed Git commands still failed in worktree-based Codex checkouts. ## What changed - Treat any `.git` marker, directory or file, as the worktree root for `safe.directory` injection. - Keep the safe-directory logic in `windows-sandbox-rs/src/sandbox_utils.rs` and have the one-shot elevated path reuse it. - Add regression coverage for both normal `.git` directories and gitfile-based worktrees. ## Validation - `cargo test -p codex-windows-sandbox sandbox_utils::tests` - `cargo test -p codex-windows-sandbox` built and ran; the new `sandbox_utils` tests passed, while two pre-existing legacy sandbox tests failed locally with `Access is denied`: `session::tests::legacy_non_tty_cmd_emits_output` and `spawn_prep::tests::legacy_spawn_env_applies_offline_network_rewrite`.
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.