AI coding tools spread when coworkers or managers use them; users submit an average of 24% more PRs
Microsoft researchers tracked tens of thousands of the company’s engineers for four months, analyzing their use of Claude Code and Copilot CLI. Adoption was prompted by colleagues and managers using the tools, while continued use was associated with developers’ usual coding volume. Those who used the tools in the first week had an average of 24% more merged PRs.
