Request DTO inheritance with Validator composition

Program.cs

public class BaseRequest
{
    public string? Id { get; init; }
}

public class BaseRequestValidator : Validator<BaseRequest>
{
    public BaseRequestValidator()
    {
        RuleFor(x => x.Id)
            .NotEmpty().WithMessage("id is required!")
            .Must(x => Guid.TryParse(x, out _)).WithMessage("must be a valid guid!");
    }
}

public class Request : BaseRequest
{
    public string? Title { get; set; }
}

public class RequestValidator : Validator<Request>
{
    public RequestValidator()
    {
        Include(new BaseRequestValidator()); //include the validator for the base dto
        RuleFor(x => x.Title).NotEmpty().WithMessage("title is required!");
    }
}

public class Endpoint : Endpoint<Request>
{
    public override void Configure()
    {
        Post("test");
        AllowAnonymous();
    }

    public override async Task HandleAsync(Request r, CancellationToken c)
    {
        await SendAsync(r);
    }
}