“Each PR is evaluated for its rollout risk: low, medium, high. 33% of our PRs are low-risk and are auto-approved by the bot. The author of the PR can thus choose to merge the PR, which in our case reduced PR lead time by 20-40% (when compared with all PRs).”
Quote · engineering.zalando.com
From “Agentic Engineering at Zalando: a snapshot”, found 2026-10-14.
Grading PRs by risk keeps human review for the changes that need it. Some teams also agreed to cap PR size after agents made PRs grow.