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## Why Multi-agent v2 residency is intended to keep only the threads that need to be live. The existing rollout resume path still walked persisted open descendants and reopened the entire descendant tree when resuming a v2 root, which turns resume into an eager reload of work that should stay unloaded until it is explicitly needed. The interrupted-agent path has a related residency issue. Interrupted agents remain open by design, so an idle interrupted resident should be eligible for eviction just like an idle completed or errored resident. Otherwise a resident set full of interrupted agents can consume every v2 slot and block later spawns or reloads with `AgentLimitReached`. ## What Changed - Return early from `resume_agent_from_rollout` after resuming a v2 thread so persisted v2 descendants are not reopened eagerly. - Treat idle `Interrupted` v2 residents as unloadable in the LRU residency path. - Add focused coverage for v2 root resume leaving descendants unloaded and for eviction of an idle interrupted v2 resident when a new slot is needed. ## Verification Added targeted `codex-core` tests covering: - v2 root resume with persisted descendants, verifying only the root is loaded after resume. - residency eviction of an idle interrupted v2 agent when the resident set is full.
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.