Kenji

Worth checking ~/.local/bin as well as the brew prefix, since the message names that path and a stale copy there can shadow the good one.

If you need it working right now without waiting on packaging:

codex -c features.code_mode_host=false

That turns off the code mode host and puts command execution back on the path that does not need the extra binary. It is a workaround rather than a fix, so take it out once your install has the file.