Vibe coding is the practice of building software by describing requirements to an AI model — such as ChatGPT, Claude, or GitHub Copilot — and accepting the generated code without deep review. The developer directs; the AI types. While it dramatically accelerates development speed, it often produces code with structural, semantic, and security weaknesses that accumulate as technical debt.

What is a VibeCode score?

A VibeCode score is VibeFix's proprietary metric that measures the AI signature density of a codebase on a 0–100% scale. Below 30% is classified as Pure Human, 30–50% as Augmented, 50–75% as Likely AI Generated, and above 75% as Synthetic. The score is calculated by the 24-point Neural DNA analysis engine.

How does VibeFix detect AI-generated code?

VibeFix detects AI-generated code using a four-phase pipeline: high-fidelity headless browser rendering, external asset enrichment, a 24-point Neural DNA analysis checking semantic density, class entropy, utility overload, error handling, content voice, and meta signals, then an AI strategic assessment layer producing the VibeCode score.

What is a good VibeCode score?

For production SaaS products, a VibeCode score below 40% (Augmented or Pure Human) is recommended. Scores above 75% (Synthetic) indicate heavy AI generation without quality controls and represent significant technical debt. VibeFix recommends all production deployments target a VibeCode score below 50%.

PR Guardian is VibeFix's automated GitHub pull request review bot. It runs the 24-point Neural DNA analysis on every incoming PR and posts the VibeCode score in the PR comments within 60 seconds. It can block merges for PRs exceeding a configured AI signature threshold. Available on the VibeFix Pro plan.

How is VibeFix different from SonarQube?

SonarQube detects bugs and code smells using predefined rules. VibeFix measures AI signature density using Neural DNA pattern analysis — detecting structural, semantic, and stylistic patterns that rule-based tools cannot see. VibeFix complements SonarQube: SonarQube for functional correctness, VibeFix for structural authenticity.

What is Neural DNA analysis?

Neural DNA analysis is VibeFix's 24-point forensic engine that detects AI pattern signatures in web code by measuring statistical distributions across class naming, DOM structure, CSS patterns, JavaScript logic, page copy, and meta signals — comparing them against known AI model output profiles to produce a VibeCode score.

How much does VibeFix cost?

VibeFix offers three plans: Hobby at $9/month (25 URL scans), Basic at $15/month (100 URL scans, PDF export), and Pro at $49/month (300 URL scans + 1,500 PR bot scans, PR Guardian, GitHub integration, API access). All plans require sign-up at vibefix.site.

Is vibe coding bad for production?

Vibe coding is not inherently bad, but unvetted vibe-coded code is a production risk. AI models generate code that runs but may lack semantic integrity, accessibility, robust error handling, and maintainability. VibeFix recommends running a Neural DNA analysis scan before every major production deployment.

Can VibeFix scan private GitHub repos?

VibeFix scans live public URLs. For private codebases, use a tunneling tool like ngrok for scanning, or use PR Guardian (Pro plan) which integrates directly with GitHub to analyze pull requests without requiring a public URL.

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Scan any URL or PR, get a Vibe Score, and receive exact fixes — powered by PR Guardian and PR Compare.

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Automated PR Bot

Bot Active

github-guardian-v1.0.3

Continuous Integration Guardian

Repo Integration

Connect your GitHub organization. VibeFix installs as a secure App with read-only access to your code.

Automated Scanning

Every commit triggers a forensic analysis. Our bot detects AI-generated patterns before you even see the PR.

Vibe Score Status

Get immediate feedback in your PR dashboard. Fail status for high AI density, Pass for human-quality code.

Web PR Analytics

Check every Pull Request forensic report on our centralized dashboard. Monitor code health trends with deep-dive analytics.

PR-Compare

Go beyond scanning. Compare PRs, get plain-English breakdowns, and rank contributors — all from a single bot command in GitHub.

Side-by-Side PR Comparison

Compare any two pull requests in a single view. Our AI recommends the winner based on code quality, AI density, and test coverage.

Plain English Explanations

Ask the bot to explain any PR in plain English — what it does, its quality score, and hidden risks — right inside GitHub comments.

Contributor Leaderboard

See who's shipping the highest-quality, most human code. Rank contributors by VibeScore across your entire organization.

Full Scan History

Every PR Guardian auto-scan and on-demand bot command is logged in a unified, chronological timeline dashboard.

View PR-Compare Dashboard

Live Scan History

Real-time

feat: add payment gateway integration

acme/backend · PR #42

87%

refactor: extract auth middleware

acme/backend · PR #39

12%

chore: update tailwind config & tokens

acme/frontend · PR #37

54%

Bot Command Results

@vibefix-bot compare #42 #39

Recommends #39 · Human-quality winner

@vibefix-bot explain #42

AI-dense payment flow detected in 3 files

@vibefix-bot leaderboard

Top contributor: sarah_dev · VibeScore 94

Scan your repo and URL. See what AI broke.

Run your first code audit safely.

Run Scan

Installs as a safe GitHub App.

Verifying Active Plan...

Frequently Asked Questions

Everything you need to know about VibeCheck scans and PR Guardian automations.

Your repo looks clean.
We expose the AI-generated flaws hiding inside.

Scan any URL or PR, get a Vibe Score, and receive exact fixes — powered by PR Guardian and PR Compare.

Hover to Pause · Click to Expand

Automated PR Bot

Bot Active

github-guardian-v1.0.3

Continuous Integration Guardian

Repo Integration

Connect your GitHub organization. VibeFix installs as a secure App with read-only access to your code.

Automated Scanning

Every commit triggers a forensic analysis. Our bot detects AI-generated patterns before you even see the PR.

Vibe Score Status

Get immediate feedback in your PR dashboard. Fail status for high AI density, Pass for human-quality code.

Web PR Analytics

Check every Pull Request forensic report on our centralized dashboard. Monitor code health trends with deep-dive analytics.

PR-Compare

Go beyond scanning. Compare PRs, get plain-English breakdowns, and rank contributors — all from a single bot command in GitHub.

Side-by-Side PR Comparison

Compare any two pull requests in a single view. Our AI recommends the winner based on code quality, AI density, and test coverage.

Plain English Explanations

Ask the bot to explain any PR in plain English — what it does, its quality score, and hidden risks — right inside GitHub comments.

Contributor Leaderboard

See who's shipping the highest-quality, most human code. Rank contributors by VibeScore across your entire organization.

Full Scan History

Every PR Guardian auto-scan and on-demand bot command is logged in a unified, chronological timeline dashboard.

View PR-Compare Dashboard

Live Scan History

Real-time

feat: add payment gateway integration

acme/backend · PR #42

87%

refactor: extract auth middleware

acme/backend · PR #39

12%

chore: update tailwind config & tokens

acme/frontend · PR #37

54%

Bot Command Results

@vibefix-bot compare #42 #39

Recommends #39 · Human-quality winner

@vibefix-bot explain #42

AI-dense payment flow detected in 3 files

@vibefix-bot leaderboard

Top contributor: sarah_dev · VibeScore 94

Scan your repo and URL. See what AI broke.

Run your first code audit safely.

Run Scan

Installs as a safe GitHub App.

Verifying Active Plan...

Frequently Asked Questions

Everything you need to know about VibeCheck scans and PR Guardian automations.

Your repo looks clean. We expose the AI-generated flaws hiding inside.

Automated PR Bot

Repo Integration

Automated Scanning

Vibe Score Status

Web PR Analytics

PR-Compare

Side-by-Side PR Comparison

Plain English Explanations

Contributor Leaderboard

Full Scan History

Scan your repo and URL. See what AI broke.

Frequently Asked Questions

Do I need code access to run a VibeCheck scan?

What exactly does the Vibe Score measure?

How does PR Guardian review my code?

Will PR Guardian modify my codebase directly?

Your repo looks clean. We expose the AI-generated flaws hiding inside.

Automated PR Bot

Repo Integration

Automated Scanning

Vibe Score Status

Web PR Analytics

PR-Compare

Side-by-Side PR Comparison

Plain English Explanations

Contributor Leaderboard

Full Scan History

Scan your repo and URL. See what AI broke.

Frequently Asked Questions

Do I need code access to run a VibeCheck scan?

What exactly does the Vibe Score measure?

How does PR Guardian review my code?

Will PR Guardian modify my codebase directly?

Your repo looks clean.
We expose the AI-generated flaws hiding inside.

Your repo looks clean.
We expose the AI-generated flaws hiding inside.