ESLint

@shadcn/lint is an agent-first linter for Tailwind v4 design systems. It lets teams define component and theme rules that coding agents can verify through ESLint or Oxlint, reporting violations with suggested fixes drawn from existing components, variants, and theme values. Its rules include preventing component restyling, raw colors, arbitrary values, inline styles, unknown Tailwind classes, and dynamic classes the linter cannot read; custom contracts, messages, placeholders, component-import settings, and shared configuration are supported. It can be used with custom Tailwind components and does not require shadcn/ui. The package requires Node.js 20.19 or later, with ESLint 9.30 or later or Oxlint 1.80 or later, and is licensed under MIT.

TSRX (TypeScript Render Extensions) is a TypeScript language extension for building declarative user interfaces in `.tsrx` files. It keeps TypeScript setup code, JSX-shaped markup, template-native `@if`, `@for`, `@switch`, and `@try` control flow, and component-scoped `<style>` blocks in one lexical scope, then parses the source into a framework-neutral AST for a selected target compiler. Supported targets include React, Preact, Solid, Vue, Ripple, and Octane; the project also provides compiler and runtime helpers, build integrations, language-server support, and integrations for TypeScript, Prettier, ESLint, VS Code, Zed, Neovim, IntelliJ, and Sublime Text. TSRX is in active beta development and is released under the MIT License. It was created by Dominic Gannaway.

Taskless is a linting tool in which developers describe an intended coding rule in English, from which the tool derives the linter rather than requiring the rule to be implemented manually. It was presented alongside ESLint and ast-grep as a way to codify recurring corrections to AI-generated code into deterministic checks.

Prettier is an opinionated code formatter that supports languages and formats including JavaScript, JSX, TypeScript, JSON, CSS, HTML, Vue, YAML, Markdown, GraphQL, and others. It integrates with many editors and is designed to format code on save, reducing style discussions in code reviews; the project emphasizes having few configuration options. The video mentions Prettier as providing formatting support for tsrx.

lintapple is an npm-based UI linting tool that checks a running web page against rules for fonts, text sizes, contrast, control size, screen bounds, spacing, alignment, radii, and related layout properties. It runs from the CLI against an application URL and reports each finding with the rule, measured value, and suggested fix; it can also wait for an application-ready selector and emit a JSON report. The package provides a Playwright helper, `expectUI`, which reads the project's `ui-policy.json`, fails the test when findings are detected, and attaches a JSON report. Additional layout checks use attributes such as `data-ui-stack`, `data-ui-actions`, `data-ui-container`, `data-ui-content`, and alignment or radius markers. It requires Node.js 22 or later and is distributed under the MIT license.