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Celia Chen
1f710c973b
## Why This PR is a behavior-preserving refactor only. It does not add a fallback, change which model is used for compaction, or otherwise change compaction behavior. The behavioral change is implemented in the stacked follow-up, #30319. Pre-sampling compaction deliberately uses the previous turn's context when the compaction compatibility hash changes or when switching to a model with a smaller context window. That preserves the model settings that produced the history being compacted, but the previous context is not always usable. For example, a resumed thread can still reference a model slug that has since been retired, causing compaction to fail before the currently selected model can sample. #30319 addresses that failure mode by retrying compaction with the current turn's selected model when the backend rejects the previous-model attempt. This PR performs only that preparatory refactor. ## What changed - Extracted one legacy `/responses/compact` request attempt into `compact_remote_request.rs`. - Extracted one Responses-based remote compaction request attempt into `compact_remote_v2_attempt.rs`. - Kept hooks, lifecycle events, analytics, window advancement, history processing and installation, and error behavior unchanged in the existing orchestration paths. - Preserved standalone Responses-based compaction's owned client-session lifetime through lifecycle completion. ## Testing - `just test -p codex-core -E 'test(remote_compact)'` (22 tests)
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.