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## Summary - preserve legacy Windows elevated sandbox behavior for existing policies - add elevated-only support for split filesystem policies that can be represented as readable-root overrides, writable-root overrides, and extra deny-write carveouts - resolve those elevated filesystem overrides during sandbox transform and thread them through setup and policy refresh - keep failing closed for explicit unreadable (`none`) carveouts and reopened writable descendants under read-only carveouts - for explicit read-only-under-writable-root carveouts, materialize missing carveout directories during elevated setup before applying the deny-write ACL - document the elevated vs restricted-token support split in the core README ## Example Given a split filesystem policy like: ```toml ":root" = "read" ":cwd" = "write" "./docs" = "read" "C:/scratch" = "write" ``` the elevated backend now provisions the readable-root overrides, writable-root overrides, and extra deny-write carveouts during setup and refresh instead of collapsing back to the legacy workspace-only shape. If a read-only carveout under a writable root is missing at setup time, elevated setup creates that carveout as an empty directory before applying its deny-write ACE; otherwise the sandboxed command could create it later and bypass the carveout. This is only for explicit policy carveouts. Best-effort workspace protections like `.codex/` and `.agents/` still skip missing directories. A policy like: ```toml "/workspace" = "write" "/workspace/docs" = "read" "/workspace/docs/tmp" = "write" ``` still fails closed, because the elevated backend does not reopen writable descendants under read-only carveouts yet. --------- Co-authored-by: Codex <noreply@openai.com>
b976e701a8
·
2026-04-09 17:34:52 -07:00
5,236 Commits
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.