Queries the resolved Tailwind CSS theme for a specific namespace and returns all design tokens. Use before generating components to discover what colors, spacing, or font values actually exist in this project. Example namespaces: 'colors', 'colors.brand', 'spacing', 'fontFamily', 'fontSize', 'screens'.

Validates a Tailwind CSS className string against the project's actual config. Returns valid_classes, invalid_classes (hallucinated tokens), possibly_valid_classes (plugin-generated — cannot verify without PostCSS), and conflict warnings. Handles variants (hover:, dark:, lg:), important (!), opacity modifiers (/50), negative values (-mt-4), and arbitrary values ([32rem]). Use to catch hallucinated design tokens before writing code.

Detects conflicting Tailwind utility classes in a className string — e.g. applying both 'flex' and 'grid', or multiple position utilities. Use to prevent silent CSS bugs before generating or reviewing component code.

Returns a compact overview of the project's Tailwind configuration: version, prefix, which theme sections have been customized, and what plugins are active. Use first to understand the project's design system before querying specific tokens.

Parses the project's root CSS file (Tailwind CSS v4) and extracts all design tokens defined in @theme blocks. Returns a flat map of CSS custom properties (e.g., --color-primary-500 -> oklch(...)).

Identifies dead design tokens by scanning the project files. Checks each CSS custom property defined in @theme blocks to see if it is referenced anywhere in the source code.

Validates Tailwind utility classes against the JIT engine by programmatically compiling them. Supports complex arbitrary values, JIT modifiers, and custom plugin classes. Returns the generated CSS rules.