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## Why World State restores its structured snapshot on resume so unchanged sections do not have to be rendered again. That is safe only when the model-visible fragment represented by the snapshot is still present in retained history. For selected executor skills, the failing selected-capability scenario exposed this state: ```text persisted World State: selected skill catalog is known retained model history: selected skill catalog message is missing next diff: unchanged, so emit nothing ``` The model resumes without being told about the selected skill catalog. ## What changed World State contributions may now optionally describe the concrete model-visible fragment that must remain in retained history. When a persisted snapshot is present: ```text matching retained fragment exists -> trust snapshot, emit nothing matching retained fragment missing -> treat section as absent, render current state once ``` The skills extension uses this for non-empty selected-environment catalogs by matching its exact rendered catalog body. Empty or hidden catalogs do not require a fragment. ## Scope This does not clear or rebuild the whole World State baseline. It does not change skill discovery, cache invalidation, environment availability, or MCP runtime behavior. It only keeps a persisted section snapshot and its retained model context consistent across resume/history reconstruction. ## Coverage A focused World State regression test verifies both sides: - a missing retained fragment is rendered again - a matching retained fragment avoids duplicate injection
723b23efd0
·
2026-06-26 02:18:00 +01:00
7,871 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.