Begin migrating the thread write codepaths to ThreadStore. This starts using ThreadStore inside of core session code, not only in the app server code. Rework the interfaces around thread recording/persistence. We're left with the following: * `ThreadManager`: owns the process-level registry of loaded threads and handles cross-thread orchestration: start, resume, fork, lookup, remove, and route ops to running CodexThreads. * `CodexThread`: represents one loaded/running thread from the outside. It is the handle app-server and callers use to submit ops, inspect session metadata, and shut the thread down. * `LiveThread`: session-owned persistence lifecycle handle for one active thread. Core session code uses it to append rollout items, materialize lazy persistence, flush, shutdown, discard init-failed writers, and load that thread’s persisted history. * `ThreadStore`: storage backend abstraction. It answers “how are threads persisted, read, listed, updated, archived?” Local and remote implementations live behind this trait. * `LocalThreadStore`: local ThreadStore implementation. It owns the file/sqlite-specific details and keeps RolloutRecorder as a local implementation detail. This is a few too many Thread abstractions for my liking, but they do all represent different concepts / needs / layers. Migration note: in places where the core code explicitly requires a path, rather than a thread ID, throw an error if we're running with a remote store. Cover the new local live-writer lifecycle with focused tests and preserve app-server thread-start behavior, including ephemeral pathless sessions.
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.
