TL;DR
Vibe coding is not a development methodology. It is an attitude toward verification: optional. That attitude does not scale past prototypes.
Agentic engineering puts AI inside a scaffold of constraints, tests, and feedback loops. The developer's primary output becomes the system that produces code, not the code itself.
The key formula from the Google whitepaper: Agent = Model + Scaffold. Most teams invest heavily in the model and ignore the scaffold. That is backwards.
Context engineering separates fast AI output from useful AI output. What you put in the context window matters more than which model you pick.
