## Why This supersedes #19391. During stack repair, GitHub marked #19391 as merged into a temporary stack branch rather than into `main`, so the runtime-config change needed a fresh PR. `PermissionProfile` is now the canonical permissions shape after #19231 because it can distinguish `Managed`, `Disabled`, and `External` enforcement while also carrying filesystem rules that legacy `SandboxPolicy` cannot represent cleanly. Core config and session state still needed to accept profile-backed permissions without forcing every profile through the strict legacy bridge, which rejected valid runtime profiles such as direct write roots. The unrelated CI/test hardening that previously rode along with this PR has been split into #19683 so this PR stays focused on the permissions model migration. ## What Changed - Adds `Permissions.permission_profile` and `SessionConfiguration.permission_profile` as constrained runtime state, while keeping `sandbox_policy` as a legacy compatibility projection. - Introduces profile setters that keep `PermissionProfile`, split filesystem/network policies, and legacy `SandboxPolicy` projections synchronized. - Uses a compatibility projection for requirement checks and legacy consumers instead of rejecting profiles that cannot round-trip through `SandboxPolicy` exactly. - Updates config loading, config overrides, session updates, turn context plumbing, prompt permission text, sandbox tags, and exec request construction to carry profile-backed runtime permissions. - Preserves configured deny-read entries and `glob_scan_max_depth` when command/session profiles are narrowed. - Adds `PermissionProfile::read_only()` and `PermissionProfile::workspace_write()` presets that match legacy defaults. ## Verification - `cargo test -p codex-core direct_write_roots` - `cargo test -p codex-core runtime_roots_to_legacy_projection` - `cargo test -p codex-app-server requested_permissions_trust_project_uses_permission_profile_intent` --- [//]: # (BEGIN SAPLING FOOTER) Stack created with [Sapling](https://sapling-scm.com). Best reviewed with [ReviewStack](https://reviewstack.dev/openai/codex/pull/19606). * #19395 * #19394 * #19393 * #19392 * __->__ #19606
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.
