8dfd654196
### Overview This PR: - Updates `app-server-test-client` to load OTEL settings from `$CODEX_HOME/config.toml` and initializes its own OTEL provider. - Add real client root spans to app-server test client traces. This updates `codex-app-server-test-client` so its Datadog traces reflect the full client-driven flow instead of a set of server spans stitched together under a synthetic parent. Before this change, the test client generated a fake `traceparent` once and reused it for every JSON-RPC request. That kept the requests in one trace, but there was no real client span at the top, so Datadog ended up showing the sequence in a slightly misleading way, where all RPCs were anchored under `initialize`. Now the test client: - loads OTEL settings from the normal Codex config path, including `$CODEX_HOME/config.toml` and existing --config overrides - initializes tracing the same way other Codex binaries do when trace export is enabled - creates a real client root span for each scripted command - creates per-request client spans for JSON-RPC methods like `initialize`, `thread/start`, and `turn/start` - injects W3C trace context from the current client span into request.trace instead of reusing a fabricated carrier This gives us a cleaner trace shape in Datadog: - one trace URL for the whole scripted flow - a visible client root span - proper client/server parent-child relationships for each app-server request
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.