## Summary - register the requirements-only `in_app_updates` feature as stable and default-enabled - prove that managed `[features] in_app_updates = false` requirements disable the canonical feature - prove that `configRequirements/read` preserves and emits the managed value - regenerate the canonical config schema fixture for the registered feature - document the app-server feature requirement The existing managed requirements parser, source precedence, canonical enforcement, and app-server mapping remain unchanged. No generated protocol files are hand-edited. Closes [CXA-4250](https://linear.app/openai/issue/CXA-4250). Upstream dependency for [openai/openai#1166248](https://github.com/openai/openai/pull/1166248), the admin-policy child stacked on [openai/openai#1163708](https://github.com/openai/openai/pull/1163708). ## Test plan - `just test -p codex-core system_requirements_control_in_app_updates` - intentional registry-key flaw: `0 passed, 1 failed, 3029 skipped` - restored production code: `1 passed, 3029 skipped` - `just test -p codex-app-server config_requirements_read_includes_in_app_updates_policy` - intentional transport-mapping flaw: `0 passed, 1 failed, 982 skipped` - restored production code: `1 passed, 982 skipped` - `just test -p codex-core config_schema_matches_fixture` - missing generated fixture: `0 passed, 1 failed, 3029 skipped` - regenerated fixture: `1 passed, 3029 skipped` - `bazel test //codex-rs/core:core-unit-tests --test_filter=config::schema::tests::config_schema_matches_fixture --test_output=errors` - `1 test passes` - `just fmt` - `git diff --check` GitOrigin-RevId: 7e7ed3c3b248dc828f743ccd98208ab987735765
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"
The standalone installers download from https://releases.openai.com/codex by default and fall back to GitHub Releases if a metadata or asset download is unavailable. To force GitHub Releases, set CODEX_INSTALLER_USE_RELEASES_OPENAI_COM to false (0 and no are also accepted):
curl -fsSL https://chatgpt.com/codex/install.sh | CODEX_INSTALLER_USE_RELEASES_OPENAI_COM=false sh
$env:CODEX_INSTALLER_USE_RELEASES_OPENAI_COM='false'; 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.
