Adam Perry @ OpenAI
67009bc53f
## Why Remote stdio MCP servers can run in an environment whose path convention differs from the Codex host. A Windows cwd such as `C:\Users\openai\share` is absolute for the executor but was rejected by a POSIX orchestrator. Built on #29501, now merged, which only clarifies the host-native `PathUri` constructor name. ## What changed - Deserialize MCP cwd values as `LegacyAppPathString` so config does not apply host path rules. - Interpret that spelling as host-native for local launches and convert it to `PathUri` at executor launch. - Skip host filesystem and command resolution checks for remote stdio in `codex doctor`. - Add host-independent config and executor-boundary coverage using the foreign path convention for each test platform. ## Validation - `just test -p codex-utils-path-uri -p codex-config -p codex-mcp -p codex-rmcp-client` (408 passed) - `just test -p codex-cli -p codex-rmcp-client` (372 passed) - `cargo check --workspace --tests` - `just test` (11,311 passed; 43 unrelated environment/timing failures) - `just fix -p codex-cli -p codex-config -p codex-core -p codex-mcp -p codex-mcp-extension -p codex-rmcp-client -p codex-tui`
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.