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## Why `--profile` now selects `<name>.config.toml`, so the legacy `profile` selector should not be reintroduced through config write or MCP tool paths. A matching legacy selector in base user config also needs the same migration guard as a matching legacy `[profiles.<name>]` table so profile loading fails with one clear migration error instead of mixing the old and new profile models. ## What - reject non-null app-server config writes to the top-level legacy `profile` selector - make `--profile <name>` reject base user config that still selects the same legacy `profile = "<name>"` value, alongside the existing matching legacy profile-table guard - reject removed MCP `codex` tool fields such as `profile` by denying unknown tool-call parameters and exposing that restriction in the generated schema - add regression coverage for the app-server write paths, config loader guard, and MCP tool input/schema behavior ## Verification - targeted regression tests cover the new app-server, config loader, and MCP rejection paths
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.