Jellyfish data: agents author 22% of merged PRs but rarely merge them unreviewed
Overview
Jellyfish's AI Engineering Trends Report for September 2026 finds that the median company now has autonomous coding agents author 22% of its merged pull requests, up from 18% a month earlier.
Agents merge without human review in only 0.6% of PRs at the median company. The top 10% of companies reach 53% agent-authored PRs and 9% agent-merged PRs.
The report also says agent-authored PRs are abandoned about twice as often as human-authored ones, at 40% versus 20%.
Written by AI from the articles below · updated Oct 21, 5:13 AM ET
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- Tessl BlogOfficialJellyfish data shows agents author 22% of merged PRs but rarely merge without human review
AIJellyfish data shows the median company now has autonomous coding agents author 22% of its merged pull requests, up from 18% a month earlier, while agents merge without human review only 0.6% of PRs at the median company. The top 10% of companies reach 53% agent-authored PRs and 9% agent-merged PRs, according to the Jellyfish AI Engineering Trends Report for September 2026. Agent-authored PRs are abandoned about twice as often as human-authored ones, at 40% versus 20%.
Heat Trend
Not enough continuous observations to show a trend yet.