Joe Liccini
71923f43a7
# Summary Claude Code supports a useful prompt-plus-stdin workflow: ```bash echo "complex input..." | claude -p "summarize concisely" ``` Codex previously did not support the equivalent `codex exec` form. While `codex exec` could read the prompt from stdin, it could not combine piped input with an explicit prompt argument. This change adds that missing workflow: ```bash echo "complex input..." | codex exec "summarize concisely" ``` With this change, when `codex exec` receives both a positional prompt and piped stdin, the prompt remains the instruction and stdin is passed along as structured `<stdin>...</stdin>` context. Example: ```bash curl https://jsonplaceholder.typicode.com/comments \ | ./target/debug/codex exec --skip-git-repo-check "format the top 20 items into a markdown table" \ > table.md ``` This PR also adds regression coverage for: - prompt argument + piped stdin - legacy stdin-as-prompt behavior - `codex exec -` forced-stdin behavior - empty-stdin error cases --------- Co-authored-by: Codex <noreply@openai.com>
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, Team, 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.