Aside: I have been building a self-hosted AI code review system that I think does a better job of finding bugs in PRs than Copilot does: https://www.roborev.io/. You can install and try it locally to compare its reviews with Copilot side-by-side (I recommend using codex + gpt-5.5 for reviews).
It might be tricky to get Infra to create a GitHub application (https://www.roborev.io/integrations/github/), but it could be worth a try. Reviews generally cost $0.20 - $2 (depending on the size of the change) if you are paying API rates for GPT-5.5, it might not be a bad use of sponsorship funds. On Mon, May 25, 2026 at 4:35 PM Sutou Kouhei <[email protected]> wrote: > > Hi, > > In apache/arrow, we don't have enough PR review resources > for now. GitHub Copilot review may help this > situation. GitHub Copilot and a PR author may fix trivial > problems before human reviews. > > I'm trying GitHub Copilot review recently for this > propose. For example: > https://github.com/apache/arrow/pull/49813 > > I start GitHub Copilot review manually for now. I received a > feedback that the following workflow bothers a PR author: > > 1. PR author pushes > 2. I trigger GitHub Copilot review half a day later because > of timezone difference > 3. PR author addresses review comments > 4. 2. > 5. 3. > 6. ... > > https://github.com/apache/arrow/pull/49813#discussion_r3289753445 > > I thought that I may be able to improve this workflow by > automating the 2. step. > > > Recently, .asf.yaml added support for GitHub Copilot > configuration: > > * https://github.com/apache/infrastructure-asfyaml/pull/89 > * https://github.com/apache/infrastructure-asfyaml#copilot_code_review > > > So I've enabled auto GitHub Copilot review: > > https://github.com/apache/arrow/pull/50023 > > It may help us or bother us. Could you share your insights > with GitHub Copilot review? I want to reduce maintenance > cost. > > FYI: Here are some feedback from Alenka: > https://github.com/apache/arrow/pull/50023#issuecomment-4535261566 > > We may improve GitHub Copilot auto review by adding custom > instructions: > https://docs.github.com/en/copilot/how-tos/copilot-on-github/customize-copilot/add-custom-instructions/add-repository-instructions > > > Thanks, > -- > kou
