As cryptoworld is evolving and growing more and more professional traders, trading companies etc are entering the market. This has as a consequence that execution of orders will determine a big part of the return on investment. Sloppy execution will (possibly) destroy (a big - part of) ROI. In empty markets (in case of volatility), or empty exchanges (for example after outage) this may cause massive losses (an example is the flash crash in ETH on GDax, although there have been several mini flash crashes/huge spikes caused by extremely sloppy execution on many exchanges in many products).

The automatic part is a beautiful concept. I am afraid Harbour might be waiting for an accident waiting to happen by automatic execution at an inconvenient moment or circumstance. I am not trying to be negative about your project. I am actually mentioning the above so you guys might take it in consideration and try to do something about it. Or perhaps you already have it covered and I didn't read about it.