Vibe Check acts as a real-time anti-pattern detector for developers using AI coding tools like Claude, providing a safety net to avoid common overengineering traps. It analyzes code and technical plans, offering both fast and deep analysis modes to identify issues like infrastructure-without-implementation, symptom-driven development, complexity escalation, and documentation neglect. By providing educational explanations and actionable guidance, Vibe Check helps developers prevent systematic failures, reduce technical debt, and empower individual learning within their development workflow.