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Bubo
AI code review that learns from maintainer feedback
I built Bubo because I’m tired of AI reviewers flooding PRs with false positives and repeating them after maintainers explain why they’re wrong. Bubo posts evidence-backed findings or LGTM and learns from repository feedback so noise drops over time. It supports GitHub and GitLab.
I built Bubo because I’m tired of AI reviewers flooding PRs with false positives, then learning nothing when a developer explains why a finding is wrong.
I started with three requirements: simple setup, evidence-backed findings or LGTM, and learning from human comments on findings so the reviewer becomes tuned to each repository.
I ran a small directional benchmark on 20 pinned PRs/MRs using GPT-5.5:
- Bubo: 7/8 defects, 27 findings, 0% noise
- ai-codereviewer: 6/8 defects, 118 findings, 20% noise
- ChatGPT-CodeReview: 5/8 defects, 75 findings, 11% noise
It is a small sample and I picked the PRs, so I treat it as encouraging rather than definitive. The harness and PR list are in the repository.
Current limits: Python 3.14+ and polling rather than webhooks.
My next direction is pluggable subject-matter specialist Skills instead of one general reviewer. That routing is roadmap, not shipped today.
Bubo is currently running in production in two places: a large data-processing/ETL codebase and a fintech crypto stack. I’d appreciate technical feedback on whether the evidence-or-LGTM and repository-learning approach holds up.
About Bubo on Product Hunt
“AI code review that learns from maintainer feedback”
Bubo was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #76 on the daily leaderboard. I built Bubo because I’m tired of AI reviewers flooding PRs with false positives and repeating them after maintainers explain why they’re wrong. Bubo posts evidence-backed findings or LGTM and learns from repository feedback so noise drops over time. It supports GitHub and GitLab.
On the analytics side, Bubo competes within Developer Tools, Artificial Intelligence and GitHub — topics that collectively have 1M followers on Product Hunt. The dashboard above tracks how Bubo performed against the three products that launched closest to it on the same day.
Who hunted Bubo?
Bubo was hunted by MountainOwl. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Bubo including community comment highlights and product details, visit the product overview.
MountainOwl