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ugrc-upgrade-tailwind-v4

ugrc-upgrade-tailwind-v4 is a skill for Claude Code, Codex from agrc/agent-skills. It costs 19 tokens per session (606 once invoked), scanned A, original, MIT.

A procedure for upgrading an existing Tailwind CSS project to Tailwind CSS v4, including required Utah design-system packages.

In plain words
What is it for?
Use it on Tailwind projects that need the v4 migration, Vite plugin setup, package upgrades, build verification, and cleanup of Tailwind-related Dependabot ignore rules.
Why use it?
It checks version prerequisites and addresses build errors and ignored Dependabot updates that could otherwise be missed during the migration.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

not rated 2repo yesterday A scan 19 tokens original MIT

Good fit Use it on Tailwind projects that need the v4 migration, Vite plugin setup, package upgrades, build verification, and cleanup of Tailwind-related Dependabot ignore rules.

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Install with agentmods
npx agentmods add skills/agrc/agent-skills/ugrc-upgrade-tailwind-v4
View source ↗ agrc/agent-skills
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.

Any agent
npx skills add agrc/agent-skills --skill ugrc-upgrade-tailwind-v4
Clone the repo
git clone --depth 1 https://github.com/agrc/agent-skills

Made for: Claude Code, Codex.

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 ugrc-upgrade-tailwind-v4

README.md
[![agentmods](https://agentmods.dev/badge/skills/agrc/agent-skills/ugrc-upgrade-tailwind-v4/github.svg)](https://agentmods.dev/skills/agrc/agent-skills/ugrc-upgrade-tailwind-v4)
Your own site
<a href="https://agentmods.dev/skills/agrc/agent-skills/ugrc-upgrade-tailwind-v4"><img src="https://agentmods.dev/badge/skills/agrc/agent-skills/ugrc-upgrade-tailwind-v4/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 ugrc-upgrade-tailwind-v4

Your own site · 80×15
<a href="https://agentmods.dev/skills/agrc/agent-skills/ugrc-upgrade-tailwind-v4"><img src="https://agentmods.dev/badge/skills/agrc/agent-skills/ugrc-upgrade-tailwind-v4.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 19 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 606 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 $0.00019 $0.00606
Opus 5 $0.00010 $0.00303
Sonnet 5 $0.00004 $0.00121
Haiku 4.5 $0.00002 $0.00061

Measured 11d ago against content hash a7112b807fdf, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

ugrc-upgrade-tailwind-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 11d 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.

skills/ugrc-upgrade-tailwind-v4/SKILL.md · 47 lines

How it starts

The opening of the file, as written. The whole thing — 47 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Migrate Project

  1. Verify the project currently uses Tailwind CSS. If not, stop and inform the user that this rule only applies to existing Tailwind projects.
  2. Check the current Tailwind CSS version. If the project is on v2 or earlier, stop and inform the user that they must first upgrade to v3 before proceeding to v4.
  3. Upgrade to Tailwind CSS v4 by fetching and following the official migration guide: #fetch https://tailwindcss.com/docs/upgrade-guide Make sure that you are using the Vite plugin and not the PostCSS plugin.
  4. Make sure that the @ugrc/tailwind-preset and @ugrc/utah-design-system packages are also upgraded to the latest versions.
  5. After completing the migration, run the project build and fix any compilation errors related to Tailwind.

Remove Dependabot Ignore Rules

Use the GitHub CLI to find and remove any Tailwind-related Dependabot ignore rules that were created through PR comments in this repository. The goal is to unignore every Tailwind-related package that Dependabot is currently suppressing because of prior PR comment commands.

Audit Dependabot PR history for Tailwind-related packages.

Use this order:

  1. Check .github/dependabot.yml for ignore rules affecting tailwindcss, @tailwindcss/*, postcss, autoprefixer, and prettier-plugin-tailwindcss.
  2. Query Dependabot PRs with gh pr list, not gh search prs.
  3. Prefer:
    • gh pr list --search "author:app/dependabot" --state all --json number,title,url,headRefName,state
    • then inspect likely grouped PRs with gh pr view <number> --json body,comments,url
    • or gh pr view <number> --comments
  4. Search PR bodies and comments for these terms:
    • tailwind
    • tailwindcss
    • @tailwindcss
    • postcss
    • autoprefixer
    • prettier-plugin-tailwindcss
    • @dependabot ignore
    • @dependabot unignore
    • @dependabot recreate
  5. Do not rely only on PR titles, because grouped PRs often hide package names in the body.
  6. Avoid cat for paging; use sed -n, tail -n, rg -n, or gh pr view --json ... | rg ....

Read the full file on GitHub · 47 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 · 47 lines · 19 tokens per session scan A a7112b807fdf

Subscribe to this mod's changes

ugrc-upgrade-tailwind-v4 is a skill published in the GitHub repository agrc/agent-skills (2 stars, last pushed yesterday), licensed MIT. It adds 19 tokens to every session and 606 once invoked, about $0.0001 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 2026-08-31.

CSS and stylingFrontendaigovernment-appskillsterraform-managed
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