Once ssh'ed into HA OS (via add-on) `hass` not in path

hi, looking to do my configuration.yaml editing directly from within the VM (Home Assistant OS) and when trying to check the config via hass --script check_config, no workie.

should I be editing my PATH to do that, or do you have advise otherwise? note i’m doing all this under the ‘root’ user

TIA

Because you have to use the ha commands documented there.