Right, an agentic harness provides a feedback loop but we shouldn't be too quick to assume that of itself is sufficient. A thermostat hooked up to an air conditioner is also a system which exists in a feedback loop, but hardly any rational person would suggest that the climate control system in your house is conscious as a result.

So, while some form of a feedback loop is likely a necessary condition for any form of adaptive behavior, it is insufficient for consciousness on its own, as even a thermostat has a feedback loop without any semblance of inner experience. At a minimum, I'd argue, the system must construct an internal model of its environment from sensory data and must also represent itself as a distinct entity within that model. This can be embodiment or stream of data from a computer system or a network. I would call a system that can distinguish me from not‑me and update its self‑representation through interaction as being functionally self-aware. However, functional self-awareness does not strictly imply subjective experience. A navigation robot that tracks its own coordinates has such a model but it needs not be conscious. Consciousness requires a higher‑order capacity where the system must not only represent itself but also reflect on its own mental states, that is, think about its own thoughts. Having such meta‑cognitive ability, which builds upon functional self‑awareness by adding recursive modeling of internal processes, is what I take to be the minimal sufficient condition for consciousness. I'm partial to the view that raw sensation without second‑order awareness lacks the reflexive quality central to our own subjective experience.