1d17ca1fa3
This PR adds oauth login support to streamable http servers when `experimental_use_rmcp_client` is enabled. This PR is large but represents the minimal amount of work required for this to work. To keep this PR smaller, login can only be done with `codex mcp login` and `codex mcp logout` but it doesn't appear in `/mcp` or `codex mcp list` yet. Fingers crossed that this is the last large MCP PR and that subsequent PRs can be smaller. Under the hood, credentials are stored using platform credential managers using the [keyring crate](https://crates.io/crates/keyring). When the keyring isn't available, it falls back to storing credentials in `CODEX_HOME/.credentials.json` which is consistent with how other coding agents handle authentication. I tested this on macOS, Windows, WSL (ubuntu), and Linux. I wasn't able to test the dbus store on linux but did verify that the fallback works. One quirk is that if you have credentials, during development, every build will have its own ad-hoc binary so the keyring won't recognize the reader as being the same as the write so it may ask for the user's password. I may add an override to disable this or allow users/enterprises to opt-out of the keyring storage if it causes issues. <img width="5064" height="686" alt="CleanShot 2025-09-30 at 19 31 40" src="https://github.com/user-attachments/assets/9573f9b4-07f1-4160-83b8-2920db287e2d" /> <img width="745" height="486" alt="image" src="https://github.com/user-attachments/assets/9562649b-ea5f-4f22-ace2-d0cb438b143e" />
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.