shadcn Lint

shadcn Lint is an agent-first linter for Tailwind design systems that provides feedback to coding agents to ensure adherence to design system rules.

@shadcn/lint is an agent-first linter designed for Tailwind CSS projects. It allows developers to define constraints for their design system, which coding agents then follow when generating or modifying UI code. If an agent violates a rule, the tool returns specific error messages with suggestions derived from the project's components, variants, and theme. It supports React, Vue, and Svelte frameworks and integrates with ESLint and Oxlint. This tool works with existing design systems without requiring a code rewrite.

shadcn Lint at a glance

Best for: Software engineer, Designer
Runs on: ESLint, Oxlint
Pricing: Free
Released: September 2026
Category: AI coding tool
Website: github.com/shadcn-ui/lint

Key features

Custom error messages for coding agents
Support for Tailwind CSS v4 projects
Integration with ESLint and Oxlint
Component-specific rule contracts
Theme-aware rule suggestions
Support for React, Vue, and Svelte

Use it for

Enforcing design system constraints during agentic code generation
Applying consistent style rules across third-party components
Reducing agent correction rounds with actionable feedback
Sharing design system configurations across multiple projects

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