Comment by softwarewright

My experience working with programmers for decades (as an individual contributor, team lead, architect, release engineer, engineering manager) is that great programmers are rare and most programmers are good enough and a few flunk out. Since AI is trained on "the internet" it sees and learns a lot of bad habits, poor coding examples, shortcuts, oversimplified solutions, and therefore, by default, produces code that can be improved. To use AI coding agents effectively, you must be able to spot bad code, suggest better approaches, add guardrails, tests, checks, guidance, etc. to keep the agents on track and improve their output. If you do not deeply understand data structures, algorithms, idioms, best practices, footguns, design patterns, etc., you cannot help the agents provide better code.