A GitHub App for your team

Who should review this PR?

Pullmaster analyzes code ownership, expertise, and workload across your team — then suggests the best reviewer for every pull request.

Install on GitHub

Free to install. No credit card required.

pullmasterai bot commented 2 minutes ago

Suggested Reviewers

@sarahchen — Has recent commits touching src/auth/ and reviewed 3 pull requests modifying the OAuth module in the last 30 days.

Code reviews shouldn't feel like this

Reviewer assignment is broken. Sound familiar?

"@here who can review this?" on repeat in Slack
The same 2-3 people review everything
Round-robin ignores who actually knows the code
PRs sit for days waiting on the wrong reviewer
New contributors get no guidance on who to request

Getting started

Most teams are live in under 5 minutes

Install the GitHub App

One click to add Pullmaster to your repositories. No configuration needed.

Open a Pull Request

Pullmaster figures out who knows this code best and who has bandwidth to review it.

Get the Best Reviewer

Pullmaster suggests a reviewer with an explanation, or assigns them directly with a GitHub review request. You choose.

How Pullmaster works

Every recommendation is based on who actually knows the code — not who's next in line.

Faster reviews. Better code. Less friction.

📁

Recent file history

Finds who recently worked on the files in your PR — not who touched them two years ago

👤

CODEOWNERS-aware

Respects your existing CODEOWNERS rules and designated maintainers

🤝

Reviewer history

Knows which reviewers give the best feedback on each teammate's code

🧠

Beyond file paths

Finds reviewers who understand the concepts in your code, even if they haven't touched the exact files

⚖️

Workload balancing

Spreads reviews across your team so the same two people don't review everything

🎯

Risk-aware routing

High-risk PRs go to your most experienced reviewers. Routine changes get spread around.

🔄

Auto-escalation

If a reviewer doesn't respond in time, Pullmaster automatically requests the next best candidate so PRs never go stale

Why not just CODEOWNERS?

CODEOWNERS solves a different problem. Here's what it can't do.

CODEOWNERS problems

Static file — must be manually updated when ownership changes
Path-based only — maps directories to teams, not reviewers to code
Goes stale as teams and codebases evolve
No workload awareness — cannot route based on capacity or availability
Binary ownership — you're an owner or you're not, no scoring or ranking

Pullmaster advantages

Dynamic — learns from every merged PR
Matches reviewers by real contribution history, not just file paths
Always current — no file to maintain
Balances workload across the team automatically
Scores reviewers on a spectrum of expertise

Want path ownership scoring without GitHub's automatic reviewer requests? Rename your CODEOWNERS file to PULLMASTER — Pullmaster reads it with the same syntax.

Frequently asked questions

: Pullmaster uses its own PULLMASTER file (same format as CODEOWNERS) for path ownership, and learns dynamically from your repo. It does not read CODEOWNERS.
: No -- most teams are live in under 5 minutes. Install the GitHub App, select your repositories, and Pullmaster starts working immediately using your existing Git history.
: Yes. Pullmaster is built for private, production codebases and follows GitHub's permission model strictly. It only accesses repositories you explicitly grant it access to.
: Yes. Pullmaster is completely free during early access — no credit card, no usage limits. We'll always have a generous free tier.
: Pullmaster reads PR metadata and diffs to generate suggestions, but never stores your raw source code. Your data is never shared with third parties, never sold, never used for model training, and never exposed outside your organization.
: All your data — embeddings, scores, and derived metrics — is permanently deleted from our servers immediately when you uninstall the GitHub App. We retain nothing.
: Pullmaster requests read access to repository contents and pull requests, and write access to post review comments and request reviewers. It follows the principle of least privilege and only accesses what it needs.
: Not yet. We take security seriously and follow best practices, but we have not completed a formal SOC 2 audit at this time. If compliance is a requirement for your team, reach out and we'll share details on our security posture.
: Pullmaster runs on secure cloud infrastructure located in the United States.
: Pullmaster is built by Justin Ko, a US-based software engineer with 20 years of professional experience. Book a call to chat about how Pullmaster can help your team.
: Pullmaster can automatically escalate to the next best reviewer if an assignment goes unanswered past your configured timeout. You control how long to wait and how many escalations are allowed per PR.

Ready to improve your code reviews?

Install Pullmaster on your GitHub repositories and start getting better reviewer recommendations today.

Install on GitHub

Free to install. No credit card required.

Questions? Reach out at hello@pullmaster.ai or book a call .