This PR does the following: * Adds the ability to paste or type an API key. * Removes the `preferred_auth_method` config option. The last login method is always persisted in auth.json, so this isn't needed. * If OPENAI_API_KEY env variable is defined, the value is used to prepopulate the new UI. The env variable is otherwise ignored by the CLI. * Adds a new MCP server entry point "login_api_key" so we can implement this same API key behavior for the VS Code extension. <img width="473" height="140" alt="Screenshot 2025-09-04 at 3 51 04 PM" src="https://github.com/user-attachments/assets/c11bbd5b-8a4d-4d71-90fd-34130460f9d9" /> <img width="726" height="254" alt="Screenshot 2025-09-04 at 3 51 32 PM" src="https://github.com/user-attachments/assets/6cc76b34-309a-4387-acbc-15ee5c756db9" />
codex-core
This crate implements the business logic for Codex. It is designed to be used by the various Codex UIs written in Rust.
Dependencies
Note that codex-core makes some assumptions about certain helper utilities being available in the environment. Currently, this
macOS
Expects /usr/bin/sandbox-exec to be present.
Linux
Expects the binary containing codex-core to run the equivalent of codex debug landlock when arg0 is codex-linux-sandbox. See the codex-arg0 crate for details.
All Platforms
Expects the binary containing codex-core to simulate the virtual apply_patch CLI when arg1 is --codex-run-as-apply-patch. See the codex-arg0 crate for details.