If AI Can Write All the Code, What's Left for Engineers to Do?

Vibe-coding represents a shift in software engineering where developers guide AI systems using natural language and feedback instead of writing code line by line. As AI makes implementation nearly free, traditional practices like rigid architecture, heavy planning, and manual debugging give way to iterative observation, disposable architectures, and evidence-driven system evaluation. In this new paradigm, engineers focus less on producing code and more on managing system behavior, defining constraints, and steering AI toward the intended outcomes.