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22886f21de
## Why Nonblocking environment snapshots allow a turn to reach the model while a remote environment is still starting. The initial context can describe that environment as still loading, but nothing currently refreshes the model-visible environment context when startup finishes during the same turn. This adds the first request-scoped reconciliation slice on top of #28683. It is gated by `DeferredExecutor` and intentionally updates only model-visible environment context; tools and other environment-derived state will migrate separately. ## What - Add a minimal `StepContext` containing the environment snapshot captured before each sampling request. - Render attached environments with their resolved shell and starting environments with `still loading`. - Track the latest environment state recorded in model history and append a bounded update only when it changes. - Seed that baseline from full initial context so ready-at-start environments are not duplicated. - Clear the in-memory baseline when history is rewritten so replacement history can be refreshed safely. ## Testing - `just test -p codex-core deferred_executor` - `just test -p codex-core environment_context_baseline_deduplicates_until_history_is_replaced` The integration coverage verifies that a pending environment reaches the first request, the ready state reaches the next request, later requests do not duplicate it, and ready-at-start environments remain single-injected. <details> <summary>Live verification</summary> - Connected to a real remote executor with startup deliberately delayed and forced three sampling requests in one turn. - Inspected the raw model inputs: request 1 showed the remote environment as `still loading`, request 2 appended its ready shell and cwd, and request 3 contained no duplicate ready update. - With the feature disabled, startup waited for the delayed executor and the first request contained only the ready environment. - With a synchronously ready environment and the feature enabled, the first request contained one environment context with no duplicate. - Executed `pwd` and read a marker file through the remote process runner; the command exited successfully and returned the remote cwd and marker contents. </details>
22886f21de
·
2026-06-22 08:47:43 -07:00
7,671 Commits
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.