## Why Codex users can earn personal rate-limit reset credits, but app-server clients do not currently have an API for reading or redeeming them. This adds the backend and protocol foundation used by the `/usage` TUI flow in #28154. ## What changed - Extend `account/rateLimits/read` with a nullable `rateLimitResetCredits` summary sourced from the existing usage response. - Add backend-client and app-server support for consuming a reset with a caller-generated idempotency key. A UUID is recommended, and clients reuse the same key when retrying the same logical reset. - Return only the consume `outcome`; clients refetch `account/rateLimits/read` for updated window state. - Document the response field and each consume outcome, and regenerate the JSON and TypeScript schema fixtures. - Clarify in `AGENTS.md` that new app-server string enum values use camelCase on the wire. - Update the existing TUI response fixture for the expanded protocol shape. - Add coverage for authentication, response mapping, backend failures, consume outcomes, and request timeout behavior. ## Validation - `just test -p codex-app-server-protocol` — 231 passed. - `just test -p codex-backend-client` — 14 passed. - Focused `codex-app-server` reset-credit tests — 5 passed. - Focused `codex-tui` protocol response fixture test — passed. - `just fix -p codex-backend-client -p codex-app-server-protocol -p codex-app-server` — passed. - `just fmt` — passed.
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.
