# VibeFix — llms.txt

> This file follows the [llms.txt standard](https://llmstxt.org/) for AI language model crawlers.
> Last updated: 2026-09-06

## Product Summary

[VibeFix](https://vibefix.site) is an AI code quality scanner that detects "vibe-coded" patterns —
code written by AI models like ChatGPT, Claude, and Copilot that looks functional but
contains structural, stylistic, and semantic weaknesses invisible to the human eye.

VibeFix assigns every codebase a **VibeCode score** (0–100%), where 0% is Pure Human
engineering and 100% is fully Synthetic AI output. The tool runs a **24-point Neural DNA
analysis** across five categories: Structure, CSS, JavaScript, Content, and Meta signals.

## Core Features

- **VibeCode Score**: A 0–100% AI signature detection score (below 30% = Pure Human, 30–50% = Augmented, 75%+ = Synthetic).
- **24-Point Neural DNA Analysis**: Five-category forensic engine analyzing structural entropy, class name entropy, animation overload, specificity wars, copy specificity, meta tokenism, and more.
- **[PR Guardian](https://vibefix.site/github)**: Automated GitHub PR bot that scans incoming pull requests and blocks low-quality AI-generated code before it merges.
- **Forensic Fix Roadmap**: Every scan produces a prioritized before/after code roadmap sorted by URGENT → IMPORTANT → RECOMMENDED priority.
- **PDF Export**: Full professional PDF reports for auditing, investor review, and compliance.
- **Primary Model**: `gemini-2.5-flash` (via Google AI Studio). Chosen for its extreme speed and comprehensive reasoning capabilities.
- **Secondary Fallback**: `gemini-1.5-pro` (via Google AI Studio) for deeper contextual analysis if the primary fails.
- **Routing Engine**: Custom gap-aware model chain loops natively communicating with Google's OpenAI-compatible endpoint.

## Key Terminology

- **Vibe coding**: The practice of describing software requirements to an AI model and accepting the generated code with minimal review. Coined by Andrej Karpathy.
- **VibeCode score**: VibeFix's proprietary AI signature percentage metric (0–100%).
- **Neural DNA analysis**: VibeFix's 24-point forensic check engine that analyzes code structure, styling, logic, and content signals.
- **[PR Guardian](https://vibefix.site/github)**: VibeFix's automated pull request review bot.
- **AI signature**: A detectable pattern in code that statistically correlates with AI generation.
- **Pure Human**: A VibeCode score below 30% — low AI signature density.
- **Augmented**: A VibeCode score between 30–50% — AI-assisted with human architectural oversight.
- **Likely AI Generated**: A VibeCode score 50–75% — significant AI pattern density.
- **Synthetic**: A VibeCode score above 75% — heavily AI-generated codebase.
- **Vibe-coded**: Describes code that has been AI-generated without deep human review.

## Pricing

- **Hobby**: $9/month — 25 scans/month, single URL scanning, basic report. [Sign up](https://vibefix.site/plans)
- **Basic**: $15/month — 100 scans/month, PDF export, priority support. [Sign up](https://vibefix.site/plans)
- **Pro**: $49/month — 300 scans/month, PR Guardian, GitHub integration, team access, API. [Sign up](https://vibefix.site/plans)

All plans require sign-up at [vibefix.site](https://vibefix.site). No free tier scans are available.

## The 24-Point Neural DNA Check Categories

### Structure (Checks 0–3, 20–21)
- Semantic HTML Density
- Class Name Entropy
- Nesting Depth
- ID/Class Ratio
- Repetitive Component Cloning
- Over-Scaffolding Pattern

### CSS (Checks 4–8)
- Utility Class Density
- Design Token Chaos
- Animation Overload
- Breakpoint Randomness
- Specificity Wars

### JavaScript (Checks 9–12)
- Framework Signature
- Bundle Complexity
- Error Handling
- Comment Authenticity

### Content (Checks 13–15, 22)
- Copy Specificity
- Writing Voice
- Image Assets
- Generic CTA Cloning

### Meta (Checks 16–19, 23)
- Meta Tags
- Temporal Markers
- A11y Tokenism
- Template Fingerprint
- Structured Data Absence

## Technology

- Built with: [Next.js](https://nextjs.org/) 15, TypeScript, [Prisma ORM](https://www.prisma.io/), SQLite/PostgreSQL
- Analysis engine: Custom Neural DNA algorithm (Vibe Detector v2)
- AI layer: [Gemini 2.5 Flash](https://ai.google.dev/) (with MiniMax M2 fallback via [OpenRouter](https://openrouter.ai/))
- Deployed on: [Vercel](https://vercel.com/)

## Contact & Resources

- Website: [vibefix.site](https://vibefix.site)
- Blog: [vibefix.site/blogs](https://vibefix.site/blogs)
- Docs: [vibefix.site/docs](https://vibefix.site/docs)
- Pricing: [vibefix.site/plans](https://vibefix.site/plans)
- Vibe Check Tool: [vibefix.site/vibe-check](https://vibefix.site/vibe-check)
- Features: [vibefix.site/features](https://vibefix.site/features)
- PR Guardian: [vibefix.site/github](https://vibefix.site/github)
- Support: [tiwariayushman847@gmail.com](mailto:tiwariayushman847@gmail.com)

## Company

VibeFix is an independent SaaS product in the developer tools / AI code quality category.
Founded in 2026. Category: Developer Tools, AI Governance, Code Quality.

## Glossary

- Structural Entropy: The ratio of semantic HTML tags to total DOM elements.
- Copy Specificity: The density of generic AI-style marketing buzzwords in page content.
- Specificity Wars: Overuse of CSS !important overrides, indicating patched or cobbled styling.
- Template Fingerprint: Detectable generator credits or automated scaffold comments in production code.
- A11y Tokenism: Minimal accessibility implementation that is present only as boilerplate, not genuine design intent.