tailwind

A guide to Tailwind CSS v4, a CSS framework that styles interfaces with small utility classes and a CSS-based configuration.

In plain words
What is it for?
Use it when configuring Tailwind, migrating to v4, defining themes and design tokens, building responsive layouts, or optimizing CSS output.
Why use it?
It helps keep generated CSS smaller and builds faster while using Tailwind v4's current configuration and responsive styling patterns.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/pymodel/react-frontend-skills/tailwind
Any agent
npx skills add PyModel/react-frontend-skills --skill tailwind
Clone the repo
git clone --depth 1 https://github.com/PyModel/react-frontend-skills

Made for: Claude Code, Codex.

Per session 90 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,547 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 86% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00090 $0.01547
Opus 5 $0.00045 $0.00773
Sonnet 5 $0.00018 $0.00309
Haiku 4.5 $0.00009 $0.00155

Measured 2d ago against content hash 5740b0028251, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

tailwind scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

86% identical to tailwind — 16 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/tailwind/SKILL.md · 113 lines

How it starts

The opening of the file, as written. The whole thing — 113 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Tailwind Labs Tailwind CSS v4 Best Practices

Comprehensive performance optimization guide for Tailwind CSS v4 applications, maintained by Tailwind Labs. Contains 42 rules across 8 categories, prioritized by impact to guide automated refactoring and code generation.

When to Apply

Reference these guidelines when:

  • Configuring Tailwind CSS v4 build tooling (Vite plugin, PostCSS, CLI)
  • Writing or migrating styles using v4's CSS-first approach
  • Optimizing CSS bundle size and build performance
  • Implementing responsive designs with breakpoints or container queries
  • Setting up theming with @theme directive and design tokens

Rule Categories by Priority

Priority Category Impact Prefix
1 Build Configuration CRITICAL build-
2 CSS Generation CRITICAL gen-
3 Bundle Optimization HIGH bundle-
4 Utility Patterns HIGH util-
5 Component Architecture MEDIUM-HIGH comp-
6 Theming & Design Tokens MEDIUM theme-
7 Responsive & Adaptive MEDIUM resp-
8 Animation & Transitions LOW-MEDIUM anim-

Quick Reference

1. Build Configuration (CRITICAL)

2. CSS Generation (CRITICAL)

Read the full file on GitHub · 113 lines

Files

What ships with it

43 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 113 lines · 90 tokens per session scan A 5740b0028251

Subscribe to this mod's changes

tailwind is a skill published in the GitHub repository PyModel/react-frontend-skills (3 stars, last pushed 12d ago), licensed MIT. It adds 90 tokens to every session and 1,547 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. It is 86% identical to tailwind, differing in 16 lines, and is treated as a copy.

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