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## Why `apply_patch` safety approval was still checking writable paths through the legacy `SandboxPolicy` projection. That can hide explicit `none` carveouts when a split filesystem policy projects back to compatibility `ExternalSandbox`, which leaves one more approval path that can auto-approve writes inside paths that are intentionally blocked. ## What changed - passed `turn.file_system_sandbox_policy` into `assess_patch_safety` - changed writable-path checks to derive effective access from `FileSystemSandboxPolicy` instead of the legacy `SandboxPolicy` - made those checks reject explicit unreadable roots before considering broad write access or writable roots - added regression coverage showing that an `ExternalSandbox` compatibility projection still asks for approval when the split filesystem policy blocks a subpath ## Verification - `cargo test -p codex-core safety::tests::` - `cargo test -p codex-core test_sandbox_config_parsing` - `cargo clippy -p codex-core --all-targets -- -D warnings` --- [//]: # (BEGIN SAPLING FOOTER) Stack created with [Sapling](https://sapling-scm.com). Best reviewed with [ReviewStack](https://reviewstack.dev/openai/codex/pull/13445). * #13453 * #13452 * #13451 * #13449 * #13448 * __->__ #13445 * #13440 * #13439 --------- Co-authored-by: viyatb-oai <viyatb@openai.com>
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, Team, 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.