In 2026, AI writes code at incredible speed. Cursor and Claude Code agents read whole repos, the CLI became the new dev infrastructure, and "a team of agents working together" is the story of the year.

But there's an uncomfortable truth: AI writes fast, yet enterprise apps still fail to ship — maintainability gets worse, not better. Why?

Speed without "scale" (standards) is just faster tech debt

For a toy app, letting an AI agent one-shot the code is great. For an enterprise system, you need:

Maintainability — survive the 7th round of requirement changes