tailwind-rules

tailwind-rules is a cursor rule for Cursor from beel-collab/presets.dev. It costs 0 tokens per session (1,094 once invoked), scanned A, original, MIT.

A set of file-based instructions for Cursor when working with Tailwind CSS, a utility-based way to style web interfaces. It covers CSS-first design tokens, class names, accessibility, security, performance, and tests.

In plain words
What is it for?
Use it when adding Tailwind classes, defining theme tokens, styling components, or checking accessible UI states.
Why use it?
It helps the agent match the installed Tailwind version and the project's existing styling setup instead of mixing old and new configuration styles. It also encourages reusable design tokens and accessible interfaces.

Cursor rule for Cursor

Written for Cursor: a Cursor rule (.mdc). Also seen: mentions Codex; mentions Cursor.

Good fit Use it when adding Tailwind classes, defining theme tokens, styling components, or checking accessible UI states.

Compare 6 cursor rules from other repositories ↓
Install with agentmods
npx agentmods add rules/beel-collab/presets.dev/tailwind-rules
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.

Clone the repo
git clone --depth 1 https://github.com/beel-collab/presets.dev

Made for: Cursor.

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-rules

README.md
[![agentmods](https://agentmods.dev/badge/rules/beel-collab/presets.dev/tailwind-rules/github.svg)](https://agentmods.dev/rules/beel-collab/presets.dev/tailwind-rules)
Your own site
<a href="https://agentmods.dev/rules/beel-collab/presets.dev/tailwind-rules"><img src="https://agentmods.dev/badge/rules/beel-collab/presets.dev/tailwind-rules/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-rules

Your own site · 80×15
<a href="https://agentmods.dev/rules/beel-collab/presets.dev/tailwind-rules"><img src="https://agentmods.dev/badge/rules/beel-collab/presets.dev/tailwind-rules.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Nothing until a file matches its globs; then the whole rule loads.
When invoked 1,094 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 $0.00000 $0.01094
Opus 5.5 $0.00000 $0.00438
Sonnet 5.5 $0.00000 $0.00219
Haiku 4.5 $0.00000 $0.00109

Measured today against content hash eb3c87a5205a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

tailwind-rules 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 today.

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.

cursor/tailwind/tailwind-rules.mdc · 104 lines

How it starts

The opening of the file, as written. The whole thing — 104 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Tailwind CSS Rules for Cursor: CSS-First Tokens and Accessible UI

Install

Install the native export at .cursor/rules/tailwind-rules.mdc. Copy that export, not this catalog file. Catalog fields such as tools and author are for presets.dev. Install one skill file per name. Cursor, GitHub Copilot, Codex, Antigravity CLI, and Devin can all read .agents/skills, so a second copy with the same name collides.

Tailwind CSS Rules for Cursor: CSS-First Tokens and Accessible UI

File-scoped Cursor rule for Tailwind CSS. It attaches when a matching file is in context.

Updated for Tailwind CSS 4.3.5, Nov 2026

Do not upgrade dependencies or the framework version unless the task asks.

Project shape

Read the stylesheet entry and the package version before adding utilities. v4 projects use @import "tailwindcss" and @theme for tokens. v3 projects use the config file and @tailwind directives. Match the one that is installed.

Put design tokens in the theme the project already has. A one-off hex in a class is a last resort. Name the token after the role (color-surface), not the raw value.

Class names

Write class names the compiler can see. className="px-4 py-2" is visible. className={`px-${n}`} is not, and it will not generate CSS. If you need a dynamic value, map a finite set of full class strings, or set a CSS variable.

Do not fight the cascade with a long string of conflicting utilities. Remove the one that lost. Use the project's component or cva helper if one exists, instead of copying a 40-class string between files.

Layout and accessibility

Build responsive layouts with the breakpoints the project uses. Start from the small screen. Do not hide focus outlines. A control that is only an icon needs an accessible name.

Contrast comes from the theme tokens. Do not put gray text on a gray surface because it looks quiet. Respect motion-reduce when you add animation. Hit targets stay large enough to tap.

Read the full file on GitHub · 104 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. today First seen · 104 lines · 0 tokens per session scan A eb3c87a5205a

Subscribe to this mod's changes

tailwind-rules is a cursor rule published in the GitHub repository beel-collab/presets.dev (3 stars, last pushed yesterday), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 1,094 tokens. 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 2026-11-13.

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