All these are useless metrics. It doesn't say anything meaningful on the quality of your life. I would be more interested in knowing if he can now retire in next 5 years instead of waiting another 15?

Or do he now just just get to work for 2 hours and enjoy the remaining 6 hours doing meaningful things apart from staring at a screen.

Merged PRs. We typically plan out our work, break up into e.g. JIRA tasks, then when we create PR's _very generally_ they should be tied to actual JIRA tickets i.e. pre-planned work. A ticket is usually a requested feature or bug (as reported by an actual user). So my PR rate, or perhaps less controversially my JIRA close rate, is around 3x higher for the last few months. That's also reflected more generally in my feedback productivity wise (i.e. people that are looking at the project as a whole rather than e.g. how many commits I've made). I exclude from 3x side projects and CLI tools, which are weird to quantify - they are typically things that would usually have been ideas in my head I never did at all. I guess I also generally exclude refactoring although I do that more. For example I had claude fix a bug that was dogging our typescript compilation. I couldn't figure out what was so slow about it (>60s to compile). Turned out it was a specific recursive type pulled in by a specific version of a library mixed by usage from one file! It actually took it a while to figure it out, it kept proposing solutions and I had to re-direct it a bunch, using mostly just intuition as opposed to experience. e.g. "No, re-run the diagnostics and look at the debug output, give me three examples of area / commands you could look at and how" and then I'd pick one. I just did that task on the side, I'd go back and look at it output once every day or two, then prompt it with something else, then just go do my usual tasks as though that didn't exist. That type of work given our pace / deadlines / etc, might never have gotten done at least not anytime soon. But I do stuff like that all the time now, I just don't often measure it.

Is that helpful?

Oh good, a new discussion point that we haven't heard 1000x on here.

Have you heard of that study that shows AI actually makes developers less productive, but they think it makes them more productive??

EDIT: sorry all, I was being sarcastic in the above, which isn't ideal. Just annoyed because that "study" was catnip to people who already hated AI, and they (over-) cite it constantly as "evidence" supporting their preexisting bias against AI.

It is undoubtedly 3x as many bugs.

I think it's just a meaningless sentence.