Decantr

Decantr is a CLI tool that checks UI changes made by AI coding agents against your project's existing components, styles, and design patterns. It helps prevent design drift by comparing what an agent built against your app's established standards, returning source-linked findings without modifying your codebase or replacing your current workflow.

Designed for teams using AI agents to edit frontend code, Decantr requires zero setup and works read-only on your current Git change. It integrates with any coding agent or editor, respects your project's authority over components and styling, and reports at most three consequential findings to help keep AI-generated UI consistent with your design system.