Half of AI-Assisted Pull Requests Merged With No Human Review, Data Shows
A design engineer analyzed 1,239 pull requests merged across 49 repositories over four weeks in mid-2026, finding that 90.7% were AI-assisted and 50.6% received no review from any human account. While org-level dashboards showed improving metrics — a median of two comments per PR and fewer with zero comments — those figures included bot-generated reviews, which accounted for 635 of 898 reviews in the final week alone. When bot activity was stripped out, the share of pull requests lacking human review actually rose from 47.7% in July to 61.6% in the most recent week. The author argues that engineering teams have scaled code generation with AI but have not scaled genuine human oversight to match. He cautions that the findings come from a single organization and should be treated as indicative of a pattern rather than a universal benchmark.
This is an AI-generated summary. ShortSingh links to the original source for the complete article.

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