What a diff-level reviewer sees
PR review tools work on the change: the lines added and removed, plus enough surrounding context to reason about them. That's a good unit of work. It catches logic slips, missed edge cases, naming and structure problems, and it catches them at the moment someone is already thinking about that code.
It also bounds what they can find. Anything already merged is invisible unless the current diff touches it. A key committed weeks ago sits in git history, unchanged and unreviewed, and stays there after you delete the file. Reviewing changes and auditing state are genuinely different jobs.
Where the workflow assumption breaks
Every PR reviewer assumes pull requests. Plenty of AI-built projects don't have them: one person, one branch, commits straight to main, deployed from a laptop. There's no review moment for a bot to attach to, so the entire category is unavailable to the builders whose code most often ships with committed secrets.
secure·vibes takes the other approach. Paste a public GitHub repo link and it reads the repository as it stands right now, with no pull request, no CI and no install. It returns a score out of 100, six weighted category subscores, and a ranked findings list with file, line, redacted evidence, why it matters and how to fix it.
Use both, mostly
These aren't substitutes. If you ship through pull requests with other people, a review bot improves every change you make, and nothing in secure·vibes replaces that. If you're one person shipping AI-written code, a whole-repo security pass before launch catches the class of problem that never appears in a diff.
The honest limits, so the comparison is fair. secure·vibes runs pattern-based static checks. It doesn't execute your code, doesn't consult a vulnerability database, and isn't a penetration test. It won't review your architecture or tell you a function is badly named. It answers one question, whether this repo is safe to put on the internet, and hands the fixes back as prompts for the agent that wrote it.
AI PR reviewers vs a whole-repo security scan
| AI code review tools | secure·vibes | |
|---|---|---|
| Unit of work | The diff in a pull request | The whole repository as it stands |
| Requires pull requests | Yes, that's the trigger | No: paste a public repo link |
| Finds secrets committed months ago | Only if the current diff touches them | Yes, it reads current repo state |
| Reviews logic, naming, structure | Yes, that's the core strength | No, security categories only |
| Dependency CVEs | Varies by tool | No database, structural checks only |
| Output | Inline PR comments | 0–100 score + ranked findings + paste-ready fix prompts |
| Setup | Install the app, grant repo access | Nothing for public repos |
frequently asked
Do AI code review tools catch committed API keys?
Sometimes, if the key appears in the diff being reviewed. What they systematically miss is a key committed before the tool was installed, because it never shows up in a later diff. That's the common case in a repo built fast and secured later.
I already use a PR review bot. Do I need a security scan too?
They answer different questions. The bot improves each change; a repo scan tells you the current state of the whole codebase, including everything merged before the bot existed. Running one doesn't cover the other.
What if my project has no pull requests at all?
Then the PR-based category can't help you, which is exactly the situation most vibe-coded projects are in. A whole-repo scan needs no workflow: paste the link and read the findings.
What does a scan cost?
Two free scans on Claude Haiku, no card, with nothing held back. After that it's $5 a scan, singly or in packs of 3 or 10, running Claude Opus 5 over the whole repo, or Claude Fable 5 if you want the strongest model on it. No subscription and nothing expires.
Last updated August 12, 2026