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## Why This is the turn-specific slice of the ChatGPT telemetry stack. We want per-turn timing that breaks total turn time into request-start delay, sampling time, and blocking tool critical path, while keeping approval wait attributable to the turn without mixing in app-server or thread startup costs. ## What changed - extend `TurnTimingState` in `codex-rs/core` to accumulate request-start delay, sampling duration, and blocking-tool critical-path duration across a turn - emit a `TurnTimingBreakdownFact` at turn completion and attach it to `codex_turn_event` - roll review durations into `approval_wait_duration_ms` and derive `finalize_duration_ms` as the remainder after request start, sampling, and blocking tool time - add reducer and timing-state coverage for the new turn timing fields and approval roll-up ## Verification - `cargo check -p codex-analytics -p codex-app-server -p codex-core` - `just fix -p codex-analytics -p codex-core`
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.