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## Why [#25089](https://github.com/openai/codex/pull/25089) introduced the background worker that compresses cold archived rollouts, and [#25654](https://github.com/openai/codex/pull/25654) made that pass faster once it starts. But the worker still deleted `rollout-compression.lock` on successful exit, so the existing six-hour staleness window only helped with overlapping or crashed workers. Each new local thread-store initialization could immediately rescan archived rollouts even if a full pass had just finished. This change keeps the existing marker around long enough to throttle redundant reruns. The worker is still best-effort, but it no longer does repeated startup scans when nothing new is eligible for compression. ## What Changed - Replace the drop-scoped `CompressionLock` with a `CompressionRunMarker` that claims the existing `.tmp/rollout-compression.lock` path and leaves it in place after success. - Reuse the existing six-hour staleness window to block both overlapping starts and immediate reruns, while still letting a stale marker be reclaimed. - Update the worker docs and debug logging to describe the new "already running or recently ran" behavior. - Extend the rollout compression tests to assert that a successful run leaves the marker behind and that a fresh marker suppresses a new run. ## Validation - `just test -p codex-rollout`
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.