Qwen Code swaps broad CODEOWNERS for a diff-aware review router
wenshao · ghdev · 2026-07-22
Qwen Code replaces broad CODEOWNERS with a diff-aware review router
This PR removes the package-level /packages/core/ → 4 maintainers rule and replaces it with a GitHub Actions workflow that assigns 0–2 reviewers based on the actual diff.
The router considers:
- how many core production files changed
- whether the core touch is incidental to a non-core PR
- a domain-to-maintainer map, such as permissions, models, tools, and agents
- round-robin rotation to spread review load
The project reports a 30-day replay over 106 core-touching PRs and shows that, on the fair post-change baseline, maintainer requests fell by 53% overall. The router also reduced notification fatigue while expanding coverage: the full 30-day picture shows fewer false positives and more PRs getting at least one request.
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