AI Can Write More Code, but Engineers Still Own the System

AI Can Write More of the Code. We Still Have to Engineer the System

AI Can Write More Code, but Engineers Still Own the System

Agents can take on more implementation work and assist with analysis, design, and testing, but engineers must still decide what to build and what evidence justifies accepting it. The author proposes keeping durable decisions in a small, reviewable project guide, specifying each increment with explicit acceptance cases, and making generation answer to verification. Documentation should earn its maintenance, and every acceptance decision should stay visible after the conversation ends.

An agent can help gather that evidence; it cannot make an incomplete test suite complete by announcing success.

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2026-11-02