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.
npx agentmods add skills/blockmatic/basilic/tailwind-design-system-v4npx skills add blockmatic/basilic --skill tailwind-design-system-v4git clone --depth 1 https://github.com/blockmatic/basilicWrote 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.
[](https://agentmods.dev/skills/blockmatic/basilic/tailwind-design-system-v4)<a href="https://agentmods.dev/skills/blockmatic/basilic/tailwind-design-system-v4"><img src="https://agentmods.dev/badge/skills/blockmatic/basilic/tailwind-design-system-v4.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00044 | $0.00365 |
| Opus 5 | $0.00022 | $0.00182 |
| Sonnet 5 | $0.00009 | $0.00073 |
| Haiku 4.5 | $0.00004 | $0.00036 |
Grade A, and why
tailwind-design-system-v4 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.
What it actually says
Tailwind Design System (v4)
Build production-ready design systems with Tailwind CSS v4, including CSS-first configuration, design tokens, component variants, responsive patterns, and accessibility.
Note: This skill targets Tailwind CSS v4 (2024+). For v3 projects, refer to the upgrade guide.
When to Use This Skill
- Creating a component library with Tailwind v4
- Implementing design tokens and theming with CSS-first configuration
- Building responsive and accessible components
- Standardizing UI patterns across a codebase
- Migrating from Tailwind v3 to v4
- Setting up dark mode with native CSS features
Key v4 Changes
| v3 Pattern | v4 Pattern |
|---|---|
tailwind.config.ts |
@theme in CSS |
@tailwind base/components/utilities |
@import "tailwindcss" |
darkMode: "class" |
@custom-variant dark (&:where(.dark, .dark *)) |
theme.extend.colors |
@theme { --color-*: value } |
require("tailwindcss-animate") |
CSS @keyframes in @theme + @starting-style for entry animations |
CSS setup, component patterns, and migration: PATTERNS.md.
What ships with it
1 file 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.
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.
- 2d ago First seen · 32 lines · 44 tokens per session scan A ce853d9de1b0
tailwind-design-system-v4 is a skill published in the GitHub repository blockmatic/basilic (89 stars, last pushed today), licensed MIT. It adds 44 tokens to every session and 365 once invoked, about $0.0002 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 2026-09-03.
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