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Cowboy
Your local PR partner: sort PRs, test your review rules
Cowboy sorts pull requests by transparent rules, follows what happens after merge, and checks whether those rules catch more failures than simpler alternatives. Free, open source, self-hosted.
Hey Product Hunt 👋 I'm Sebastian, and I built Cowboy.
Every team has review rules: "big PRs need two reviewers", "migrations need an owner", "agent PRs get a closer look". Almost nobody checks whether those rules actually catch problems, or just cost reviewer time.
Cowboy sorts each pull request into easy, normal or careful with rules you can read, flags shortcuts like skipped tests or silenced warnings, and tracks what happens after merge: reverts, broken main, follow-up fixes. Then it tests your rules against simple alternatives on your own history.
We ran that test on our own default rules first, on about 28,000 merged PRs from 11 public repos. They didn't win everywhere. That's the point: no rule set works for every team, so Cowboy measures yours instead of asking you to trust it. Every result, including what failed, is on the Evidence page.
It's free and open source, and it runs on your machine. Your code never leaves. You can rate your last 90 days on day one.
About Cowboy on Product Hunt
“Your local PR partner: sort PRs, test your review rules”
Cowboy was submitted on Product Hunt and earned 3 upvotes and 1 comments, placing #119 on the daily leaderboard. Cowboy sorts pull requests by transparent rules, follows what happens after merge, and checks whether those rules catch more failures than simpler alternatives. Free, open source, self-hosted.
On the analytics side, Cowboy competes within Open Source, Developer Tools and GitHub — topics that collectively have 632k followers on Product Hunt. The dashboard above tracks how Cowboy performed against the three products that launched closest to it on the same day.
Who hunted Cowboy?
Cowboy was hunted by Sebastian Gracia. 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 Cowboy including community comment highlights and product details, visit the product overview.
Sebastian Gracia