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## Summary Codex's Amazon Bedrock provider signs Mantle requests with SigV4 using credentials resolved by the AWS SDK. That worked for standard AWS profiles and environment credentials, but AWS CLI console-login profiles created by `aws login` require the SDK's `credentials-login` feature to resolve `login_session` credentials. This change enables that credential provider so Bedrock can use AWS console-login credentials through the existing provider-owned AWS auth path. While testing the console-login path, we also hit a Mantle-specific SigV4 regression from the new split between `session_id` and `thread_id`. Mantle does not preserve legacy OpenAI compatibility headers that use `snake_case` before SigV4 verification, so signing those headers can make the server reconstruct a different canonical request. The Bedrock auth path now removes that header class before signing, keeping preserved hyphenated Codex/AWS headers such as `x-codex-turn-metadata` signed normally. ## Changes - Enable `aws-config`'s `credentials-login` feature in `codex-rs/aws-auth`. - Add a compile-time regression test for `aws_config::login::LoginCredentialsProvider`. - Strip `snake_case` compatibility headers from Bedrock Mantle SigV4 requests before signing. - Expand the Bedrock auth regression test to cover `session_id`, `thread_id`, and future headers of the same shape. - Refresh Cargo and Bazel lockfiles for the added `aws-sdk-signin` dependency. ## Tests - tested with `aws login` locally and verified that it works as intended.
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.