## Stack This is PR 3 of the simplified HAI single-run-task stack: - [#19047](https://github.com/openai/codex/pull/19047) Agent Identity assertion and task-registration primitives, including the shared run-task helper used by existing Agent Identity JWT auth. - [#19049](https://github.com/openai/codex/pull/19049) Disabled-by-default ChatGPT auth opt-in that provisions/reuses persisted Agent Identity runtime auth and its single run task. - [#19051](https://github.com/openai/codex/pull/19051) Run-scoped provider auth that uses one backend-owned task id for first-party inference and compaction requests. [#19054](https://github.com/openai/codex/pull/19054) collapsed out of the active stack because the simplified design no longer needs a separate background/control-plane task helper. ## Summary This PR moves Agent Identity usage into provider auth resolution. That keeps `AgentAssertion` auth tied to first-party OpenAI provider requests instead of applying a late session-wide override that could affect local, custom, Bedrock, API-key, or external-bearer providers. What changed: - adds a small `ProviderAuthScope` struct carrying the run auth policy and session source needed by provider-scoped auth resolution - lets `Session` opt the existing `ModelClient` into `ChatGptAuth` policy when `use_agent_identity` is enabled, without adding a second model-client constructor - resolves Agent Identity only for first-party OpenAI provider auth paths - uses the persisted run task id from the `AgentIdentityAuth` record to build `AgentAssertion` auth for Responses requests - routes shared request setup through scoped provider auth so unary compact requests use the same run-task assertion path as inference turns - keeps local/custom/Bedrock/env-key/external-bearer provider auth unchanged - lets missing run-task state surface through the existing model-request error path instead of silently falling back to bearer auth This PR intentionally does not create thread-scoped, target-scoped, or background-scoped task identities. The run task is the only task Codex registers in this POC shape. ## Testing - `just test -p codex-model-provider` - `just test -p codex-core client::tests::provider_auth_scope_uses` - `just test -p codex-core remote_compact_uses_agent_identity_assertion`
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.
