LOC is a very-very weak proxy of "how many new features" I've built, and they don't have any other metric that can be measured easily. But it causes serious issues, because equating LOC with productivity leads to inevitable utter bloat, that no agent or human can ever rectify in a meaningful timeframe. I'm pretty sure this 600 000??? LOC could be shrinked to 60 K for the same feature set, but with better readability and performance.