## Why `codex-rs/tui/src/history_cell.rs` had become the dumping ground for transcript rendering: the shared trait, common helpers, and the concrete cells for messages, plans, MCP/search, notices, patches, approvals, session chrome, and separators all lived together. That made small transcript changes require reopening a very large file and made ownership less obvious. ## What changed - Replaced the monolithic `history_cell.rs` with a `history_cell/` module tree organized by concern. - Kept the existing `crate::history_cell::*` surface stable through re-exports in `history_cell/mod.rs`. - Moved the existing render coverage into `history_cell/tests.rs`. ## Reviewer notes - This PR is intentionally mechanical in mature — existing code and tests moving into files that match their concern. - The snapshot files under `codex-rs/tui/src/history_cell/snapshots/` moved with the extracted test module. `insta` resolves these unnamed snapshots relative to the source file that declares them, so this is path churn only; snapshot contents were not updated. - The small non-mechanical seam edits are limited to split fallout: sibling-module visibility for shared cell containers, moving approval-specific exec-snippet helpers beside approvals, fixing the separator module path, and keeping a couple of existing test helpers reachable after extraction.
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.
