## Why Admins need persistent defaults for the model, reasoning effort, and service tier shown when the Desktop App creates a new thread. These are initialization defaults rather than runtime constraints: the App should use them to initialize its draft while still allowing a user to make an explicit selection. The app-server therefore needs to expose the managed values before thread creation without changing `thread/start` behavior for other clients. ## What changed - Parse `model`, `model_reasoning_effort`, and `service_tier` from `[models.new_thread]` in `requirements.toml`. - Compose the `models` requirements through the existing requirements-layer precedence rules. - Expose the resolved values through `configRequirements/read` as `requirements.models.newThread`. - Add the corresponding app-server protocol types and regenerate the JSON and TypeScript schema fixtures. - Document the new `configRequirements/read` fields in the app-server README. ## Scope This PR is data plumbing only. It does not apply these values during `thread/start` and does not change thread creation for existing app-server clients, resumed or forked sessions, internal or subagent sessions, `codex exec`, or the TUI. A companion Desktop App change owns draft initialization, sends the effective settings for ordinary and prewarmed starts, and preserves explicit user changes. ## Validation - Requirements deserialization coverage for `[models.new_thread]` - Requirements-layer precedence coverage - App-server API mapping coverage - `configRequirements/read` integration coverage - Regenerated app-server JSON and TypeScript schema fixtures
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.
