## Why Models sometimes need to pause briefly while waiting for external work, but using a shell command for that delay ties the wait to a process and does not naturally resume when new turn input arrives. ## What changed - add a built-in `sleep` tool behind the under-development `sleep_tool` feature - accept a bounded `duration_ms` argument, matching the millisecond convention used by unified exec - end the sleep early when either steered user input or mailbox input arrives - include elapsed wall-clock time in completed and interrupted outputs - emit a dedicated core `SleepItem` through `item/started` and `item/completed` - expose the sleep item as app-server v2 `ThreadItem::Sleep` and retain it in reconstructed thread history - regenerate the configuration schema for the new feature flag - regenerate app-server JSON and TypeScript schema fixtures ## Test plan - `just test -p codex-core sleep_tool_follows_feature_gate` - `just test -p codex-core any_new_input_interrupts_sleep` - `just test -p codex-app-server-protocol` - `just test -p codex-app-server sleep_emits_started_and_completed_items`
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"
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.
