## Why Remote v2 compaction can return replacement-history items without IDs. Because replacement history is installed directly, those items bypass normal history preparation and remain ID-less in later Responses requests even when the `item_ids` feature is enabled. ## What changed - Pass the active `TurnContext` into `replace_compacted_history`. - When `item_ids` is enabled, assign missing IDs before installing and persisting replacement history. - Rebuild `CompactedItem` from the prepared history so live and persisted replacement histories match. - Add integration coverage requiring IDs on every ID-capable input item in the initial, remote v2 compaction, and post-compaction requests. ## Test plan - `just test -p codex-core response_item_ids` - `just test -p codex-core websocket_v2_test_codex_shell_chain` - `just test -p codex-core remote_compaction_parity_pre_turn_auto` - `just test -p codex-app-server thread_inject_items_adds_raw_response_items_to_thread_history`
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.
