## Why Fixes #20145. `config/value/write` treats a JSON `null` value as a request to clear the config key. Clearing a key that is already absent should be idempotent, but clearing a nested key such as `features.personality` from an empty `config.toml` returned `configPathNotFound` because `clear_path` treated the missing `features` parent table as an error. That makes app-server reset flows brittle because clients have to read first and avoid sending a clear request unless the parent path already exists. ## What Changed - Updated app-server config clearing so missing intermediate tables, or non-table parents, are treated as an unchanged no-op. - Removed the now-unreachable `MergeError::PathNotFound` path from config write merging. - Added a regression test covering `features.personality = null` against an empty user config. ## Verification - `cargo test -p codex-app-server clear_missing_nested_config_is_noop` - `cargo test -p codex-app-server` was run; the config manager unit suite passed, but one unrelated integration test failed because `turn_start_emits_thread_scoped_warning_notification_for_trimmed_skills` expected `7` trimmed skills and observed `8`. - `just fix -p codex-app-server`
npm i -g @openai/codex
or brew install --cask codex
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
Install globally with your preferred package manager:
# 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.
