The biggest challenge in adopting agentic engineering practices is getting comfortable with the consequences of the fact that writing code is cheap now. Code has always been expensive. Producing a few hundred lines of clean, tested code takes most software developers a full day or more. Many of our engineering habits, at both the macro and micro level, are built around this core constraint. At the macro level we spend a great deal of time designing, estimating and planning out projects, to ensur...