10 Lessons for Agentic Coding: What Should We Do When Code Is Cheap? — 252 Points on HN

Hacker News·medium signal

Drew Breunig's essay on the emerging discipline of agentic coding hit 252 points and 232 comments on HN. Key lessons: implement to learn (when code is cheap, build exploratory prototypes instead of spec-first), write behavioral tests that measure product functions rather than implementation details, document intent alongside code since neither tests nor code captures the 'why,' and remember that 'code is cheap but maintenance, support, and security aren't — agentic code is free as in puppies.'