[macOS26]

I can totally agree on the harness part. When I first set out to create a Cursor killer nearly 3 years ago, I built LLM tools, but when I didn't know then has I tried to wrap the LLM's brain around the tools when it needed to be the other way around.

Looks me off an on three years to realize I was doing it backwards. Agent was originally born after I re-wrote CloneTool, a more generic Disk Cloning too with an SMAppService Launch Daemon.

After I completed CloneTool, I was like mmmmm what is I connected an LLM to the Daemon? It rattled of 50 things it could do and it had no knowledge of this anywhere in the harness, system prompt or tools. It simply had figured out its environment on its own.

I never ran Agent under that scenario it definitely has a hardness now. And yes getting the hardness right is a number one challenge and once you do get it working good with most LLMs out of the box, you try not to change it because that sweet spot is hard to come by. Not to say it never gets tweaked but the further in you go, the more you chringe on a change that may break it.