SE 2.0 — a world where the main artifact is code. Tests, reviews and CI all serve it. Copilots speed up such an engineer 1.5–2×.
SE 3.0 — a world where the main artifact is intent and a spec. Code becomes a derivative generated by agents. Quality is protected by evals, specs and contracts, not line-by-line review.
The map shows which practices, artifacts and metrics move with the transition — and what becomes the bottleneck when writing code stops being the hard part.
Name the primary work artifact: code, intent, spec, or eval.
Decide which quality gates should move from review to evals and contracts.
Find the new bottleneck once code generation is no longer the hard part.