I discovered that `cargo build` worked for the entire workspace, but not for the `mcp-client` or `core` crates. * `mcp-client` failed to build because it underspecified the set of features it needed from `tokio`. * `core` failed to build because it was using a "feature" of its own crate in the default, no-feature version. This PR fixes the builds and adds a check in CI to defend against this sort of thing going forward.
codex-core
This crate implements the business logic for Codex. It is designed to be used by the various Codex UIs written in Rust.
Though for non-Rust UIs, we are also working to define a protocol for talking to Codex. See:
You can use the proto subcommand using the executable in the cli crate to speak the protocol using newline-delimited-JSON over stdin/stdout.