The guardrails are the product
It's a new way of thinking about what it means to be an engineer, or what it means to be a builder, which is the word that is being passed around nowadays as opposed to engineer. If you're a person that naturally leans towards understanding things from first principles, or just understanding why things work the way they do, you would tend to thrive better in this world that we're getting into.
Harness engineering is essentially: if the model is the commodity, the secret sauce is in the guardrails that are set up. If you have a very strong model with auto mode, maybe it doesn't need as many guardrails. But at the end of the day, you know your product, and know the places it's likely to potentially break. You can work with an agent to figure out those places, and then design rules and systems. That means you can use a cheaper model and achieve similar level of results.
Said out loud in a team meeting, 24 July 2026. Trimmed for filler; not rewritten.