Purr-fect Code Reviews,
Every Single Time.
Meet Meowntainer: The AI-powered GitHub App that automatically reviews your pull requests, catches bugs, and suggests improvements before you merge.
feat: add user authentication with JWT tokens
@dev-jane wants to merge feat/auth into main
🔍 Security Finding (High): The original code signs tokens without an expiry. I've flagged this — but your fix looks purrfect! One more thing: move the JWT_SECRET check before token generation to fail fast. Also, consider httpOnly cookies over localStorage for extra security. 🐱
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Features
Your AI-powered senior dev.
Who happens to be a cat.
From instant feedback to deep security scans, Meowntainer covers the whole review cycle — automatically.
Context
Reads your whole codebase
Not just the diff. Meowntainer cross-references imports, types, and usages to give advice that actually makes sense.
Meowntainer — Good catch, but unauthorized() is only defined in utils/http.ts. Make sure it's exported.
Security
Catches vulns before merge
Hardcoded secrets, injections, deprecated APIs — flagged automatically on every PR.
Speed
Reviews in under 5 seconds
Meowntainer analyzes your diff and posts feedback before your CI even starts. No queue, no waiting.
Summaries
Plain-English PR summaries
Every PR gets a one-paragraph summary so reviewers know what changed before reading a single line.
Summary: Replaces JWT decode logic with a shared useAuth hook across 6 files. Reduces duplication by ~40%.
Suggestion: useAuth is not memoized — consider wrapping the hook return in useMemo to avoid re-renders.
Setup
Zero configuration
Install the GitHub App, grant repo access, and you're done. No YAML, no tokens, no pipelines.
How It Works
From zero to reviewed
in three steps.
No new tooling. No config files. Just install, push, and get a review.
Install the GitHub App
Click install, choose your repositories, and grant access. No config files, no tokens, no pipelines to set up. Done in under 2 minutes.
Open a Pull Request
Work exactly as you always have. Push your branch and open a PR on GitHub. Meowntainer is already watching and springs into action the moment it appears.
Get Your AI Review
Within seconds, Meowntainer analyzes the full diff, understands context across your whole codebase, and leaves a detailed inline review — bugs, suggestions, and security flags included.
Bug: webhookSecret is never validated — attacker can forge events.
Suggestion: Consider extracting the retry logic into a shared withRetry() utility.
Payment handler pattern looks solid.
That's it. No YAML. No config. No PhD required.Just better code.
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Over 3,000 engineers use Meowntainer to review code across 1,200+ repositories every day.
We merged a SQL injection vulnerability into staging last quarter. Since adding Meowntainer, it would have been flagged before the PR was even reviewed by a human.
Our junior devs are shipping with way more confidence now. Having an AI review waiting within seconds of opening a PR means they catch their own mistakes before asking for help.
The context-awareness is what sold me. It didn't just see that I removed a function — it noticed three other files still imported it and flagged them all.
Cut our average time-to-review by about 60%. Human reviewers are now spending time on architecture decisions, not nitpicking missing null checks.
Setup took two minutes. We installed it on a Friday afternoon and had it reviewing PRs before the weekend. Genuinely the fastest tool onboarding I've experienced.
The summaries alone are worth it. Every PR now has a plain-English description at the top. Our product team actually understands what's shipping without reading diffs.
Pricing
Simple pricing.
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Start free forever on open-source. Upgrade when you're ready to ship faster.
Free
CommunityFor open-source projects and small personal repos.
- Up to 3 repositories
- 50 PR reviews / month
- Basic bug detection
- Style & lint suggestions
- GitHub comments
- Community support
Pro
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- Unlimited repositories
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FAQ
Questions worth
asking up front.
If you don't see your question here, our team is reachable via the in-app chat or at support@meowntainer.dev.
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