A software factory is just markdown files, not a product or special harness

A software factory is not a startup, not a product someone built, and not a special AI harness. As Greg Isenberg put it, it's literally just a bunch of markdown files. The power comes entirely from the workflows, skills, and domain knowledge baked into those files — how you structure the agent's instructions, how you define quality standards, how you enforce the build-prove-ship loop. Different people will work differently, but the core insight is that the 'factory' metaphor is about process, not tooling. You don't need a proprietary platform; you need a disciplined methodology.