0df7e9a820
stacked on #17402. MCP tools returned by `tool_search` (deferred tools) get registered in our `ToolRegistry` with a different format than directly available tools. this leads to two different ways of accessing MCP tools from our tool catalog, only one of which works for each. fix this by registering all MCP tools with the namespace format, since this info is already available. also, direct MCP tools are registered to responsesapi without a namespace, while deferred MCP tools have a namespace. this means we can receive MCP `FunctionCall`s in both formats from namespaces. fix this by always registering MCP tools with namespace, regardless of deferral status. make code mode track `ToolName` provenance of tools so it can map the literal JS function name string to the correct `ToolName` for invocation, rather than supporting both in core. this lets us unify to a single canonical `ToolName` representation for each MCP tool and force everywhere to use that one, without supporting fallbacks.
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.