`nl` is a line-numbering tool that should be on the _trusted _ list, as there is nothing concerning on https://gtfobins.github.io/gtfobins/nl/ that would merit exclusion. `true` and `false` are also safe, though not particularly useful given how `is_known_safe_command()` works today, but that will change with https://github.com/openai/codex/pull/1668.
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.