Function validate_native_exec_guest_configuration 

pub fn validate_native_exec_guest_configuration(
    config: &Config,
) -> Result<(), NativeExecCutError>

Check the live guest Config before snapshotting or using a restored Tool.

Serde omits these fields, so a wire digest cannot establish their absence. The continuing host owns output paths; the guest must not carry a discarded copy. This function inspects the Config without clearing or rebinding it.