All I see tools like this doing is getting people to manipulate the metrics, while at the same time producing enormous amounts of worker alienation. I'd even speculate the demoralising effects of workplace surveillance schemes undermine the alleged productivity benefits.
I don't have any data to prove this :)
good
Focus on the stuff that matters, not on tormenting the people that make you money.
That's why there are so many stupid ideas floating around.
My experience is that these are only useful over a long enough period and across enough people that we can spot genuine outliers. For example, your average across the last 6 months is "15" and the average of everyone else is "25", can you help me see whether you are being given too much off-target work or are there any other issues that are blocking you getting stuff done?
Those are horrible incentives.
It is called "not wanting to work in a company that is insulting me with measures like metrics, spying on screens, squeezing every drop of sweat and exploiting its workers for already huge profit.
My last job change was exactly due to company acquisition by USA company that started to exploit everything work related, removing wfh, ruining life-job ballance,... And who leaves first? Those who can.
So you are not really measuring developer productivity but helping company get rid of most productive people, while all others stay.