auto-co-meta: Skill for Claude Code

.claude/skills/tailwind-v4-shadcn/SKILL.md

tailwind-v4-shadcn is a skill for Claude Code from NikitaDmitrieff/auto-co-meta. It costs 198 tokens per session (4,098 once invoked), scanned A, original, MIT.

A setup guide for building React websites with Tailwind CSS version 4, shadcn/ui components, Vite, dark mode, and theme colors. Tailwind CSS styles pages through utility classes, while shadcn/ui provides reusable interface components.

In plain words
What is it for?
Use it to initialize or repair a React and Vite project, add shadcn/ui, configure dark mode, define theme colors, and resolve Tailwind v4 styling problems.
Why use it?
It helps avoid common setup and theme-switching problems, especially when starting a project, moving from Tailwind version 3, or debugging color and CSS variable issues.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: mentions Claude Code.

This is NikitaDmitrieff/auto-co-meta's own configuration. It tells Claude Code how to work on auto-co-meta itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything auto-co-meta configures →

Reuse

Borrowing it

Nothing to install: this file belongs to NikitaDmitrieff/auto-co-meta. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/NikitaDmitrieff/auto-co-meta/main/.claude/skills/tailwind-v4-shadcn/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/NikitaDmitrieff/auto-co-meta

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for tailwind-v4-shadcn

README.md
[![agentmods](https://agentmods.dev/badge/skills/nikitadmitrieff/auto-co-meta/tailwind-v4-shadcn/github.svg)](https://agentmods.dev/skills/nikitadmitrieff/auto-co-meta/tailwind-v4-shadcn)
Your own site
<a href="https://agentmods.dev/skills/nikitadmitrieff/auto-co-meta/tailwind-v4-shadcn"><img src="https://agentmods.dev/badge/skills/nikitadmitrieff/auto-co-meta/tailwind-v4-shadcn/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for tailwind-v4-shadcn

Your own site · 80×15
<a href="https://agentmods.dev/skills/nikitadmitrieff/auto-co-meta/tailwind-v4-shadcn"><img src="https://agentmods.dev/badge/skills/nikitadmitrieff/auto-co-meta/tailwind-v4-shadcn.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 198 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,098 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found 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 5.1 $0.00198 $0.04098
Opus 5 $0.00099 $0.02049
Sonnet 5 $0.00040 $0.00820
Haiku 4.5 $0.00020 $0.00410

Measured 11d ago against content hash ba664c44d495, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

tailwind-v4-shadcn 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 11d ago.

The scan reads SKILL.md. This mod also ships 2 executable files (templates/utils.ts, templates/vite.config.ts), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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

Copies of this mod

1 near-identical copy found in the catalogue:

.claude/skills/tailwind-v4-shadcn/SKILL.md · 558 lines

How it starts

The opening of the file, as written. The whole thing — 558 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Tailwind v4 + shadcn/ui Production Stack

Production-tested: WordPress Auditor (https://wordpress-auditor.webfonts.workers.dev) Last Updated: 2025-12-04 Status: Production Ready ✅

Table of Contents

  1. Before You Start
  2. Quick Start
  3. Four-Step Architecture
  4. Dark Mode Setup
  5. Critical Rules
  6. Semantic Color Tokens
  7. Common Issues & Fixes
  8. File Templates
  9. Setup Checklist
  10. Advanced Topics
  11. Dependencies
  12. Tailwind v4 Plugins
  13. Reference Documentation
  14. When to Load References

⚠️ BEFORE YOU START (READ THIS!)

CRITICAL FOR AI AGENTS: If you're Claude Code helping a user set up Tailwind v4:

  1. Explicitly state you're using this skill at the start of the conversation
  2. Reference patterns from the skill rather than general knowledge
  3. Prevent known issues listed in reference/common-gotchas.md
  4. Don't guess - if unsure, check the skill documentation

USER ACTION REQUIRED: Tell Claude to check this skill first!

Say: "I'm setting up Tailwind v4 + shadcn/ui - check the tailwind-v4-shadcn skill first"

Why This Matters (Real-World Results)

Without skill activation:

  • ❌ Setup time: ~5 minutes
  • ❌ Errors encountered: 2-3 (tw-animate-css, duplicate @layer base)
  • ❌ Manual fixes needed: 2+ commits
  • ❌ Token usage: ~65k
  • ❌ User confidence: Required debugging

With skill activation:

  • ✅ Setup time: ~1 minute
  • ✅ Errors encountered: 0
  • ✅ Manual fixes needed: 0
  • ✅ Token usage: ~20k (70% reduction)
  • ✅ User confidence: Instant success

Known Issues This Skill Prevents

  1. tw-animate-css import error (deprecated in v4)
  2. Duplicate @layer base blocks (shadcn init adds its own)
  3. Wrong template selection (vanilla TS vs React)
  4. Missing post-init cleanup (incompatible CSS rules)
  5. Wrong plugin syntax (using @import or require() instead of @plugin directive)

Read the full file on GitHub · 558 lines

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. 11d ago First seen · 558 lines · 198 tokens per session scan A ba664c44d495

Subscribe to this mod's changes

tailwind-v4-shadcn is a skill published in the GitHub repository NikitaDmitrieff/auto-co-meta (43 stars, last pushed 2mo ago), licensed MIT. It adds 198 tokens to every session and 4,098 once invoked, about $0.0010 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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