Owen Lin
30f6786d62
## Description Previously the `action` field on `EventMsg::GuardianAssessment`, which describes what Guardian is reviewing, was typed as an arbitrary JSON blob. This PR cleans it up and defines a sum type representing all the various actions that Guardian can review. This is a breaking change (on purpose), which is fine because: - the Codex app / VSCE does not actually use `action` at the moment - the TUI code that consumes `action` is updated in this PR as well - rollout files that serialized old `EventMsg::GuardianAssessment` will just silently drop these guardian events - the contract is defined as unstable, so other clients have a fair warning :) This will make things much easier for followup Guardian work. ## Why The old guardian review payloads worked, but they pushed too much shape knowledge into downstream consumers. The TUI had custom JSON parsing logic for commands, patches, network requests, and MCP calls, and the app-server protocol was effectively just passing through an opaque blob. Typing this at the protocol boundary makes the contract clearer.
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.