## Why `Turn.items` currently overloads an empty array to mean either that no items exist or that the server intentionally did not load them for this response. That ambiguity blocks future lazy-loading work where clients need to distinguish unloaded, summary, and fully hydrated turn payloads. ## What changed - add a new `TurnItemsView` enum with `notLoaded`, `summary`, and `full` variants - add required `itemsView` metadata to app-server `Turn` payloads - mark reconstructed persisted history as `full` and live shell-style turn payloads as `notLoaded` - keep current `thread/turns/list` behavior unchanged and document that it still returns `full` turns today - regenerate the JSON and TypeScript protocol fixtures ## Verification - `just write-app-server-schema` - `cargo test -p codex-app-server-protocol` - `cargo test -p codex-app-server thread_read_can_include_turns` - `cargo test -p codex-app-server thread_turns_list_can_page_backward_and_forward` - `cargo test -p codex-app-server thread_resume_rejects_history_when_thread_is_running` - `just fix -p codex-app-server-protocol` - `just fix -p codex-app-server` - `just fmt`
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.
