I spent the last 3 months building my own AI agent harness, fully written in Go. It's called Forcefield, and I primarily built it because I had trouble using local AI models with agent harnesses like Claude Code. I found the configuration needed to get local models working frustrating, and I wanted something simpler. The main thing I've been optimizing for is the runtime itself. It needs to have low overhead, fast startup, and a simple enough system that users can run it locally without an accou...