wind-ui

wind-ui is a skill for Claude Code from fluttersdk/wind. It costs 264 tokens per session (15,299 once invoked), scanned A, original, MIT.

A utility-class styling system for Flutter, Google's toolkit for building apps from one codebase. It lets developers describe visual styles with Tailwind-like class names that are converted into Flutter widgets.

In plain words
What is it for?
Use it to style existing Flutter screens with spacing, layout, colors, dark mode, hover effects, shadows, themes, and Flutter-specific interaction behavior.
Why use it?
It keeps visual choices close to each widget and avoids repeatedly writing separate Flutter styling code.

Skill for Claude Code

Written for Claude Code: when-to-use in frontmatter.

Good fit Use it to style existing Flutter screens with spacing, layout, colors, dark mode, hover effects, shadows, themes, and Flutter-specific interaction behavior.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/fluttersdk/wind/wind-ui
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 fluttersdk/wind --skill wind-ui
Clone the repo
git clone --depth 1 https://github.com/fluttersdk/wind

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 wind-ui

README.md
[![agentmods](https://agentmods.dev/badge/skills/fluttersdk/wind/wind-ui/github.svg)](https://agentmods.dev/skills/fluttersdk/wind/wind-ui)
Your own site
<a href="https://agentmods.dev/skills/fluttersdk/wind/wind-ui"><img src="https://agentmods.dev/badge/skills/fluttersdk/wind/wind-ui/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 wind-ui

Your own site · 80×15
<a href="https://agentmods.dev/skills/fluttersdk/wind/wind-ui"><img src="https://agentmods.dev/badge/skills/fluttersdk/wind/wind-ui.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 264 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 15,299 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Excessive Agency · line 474
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
How audits are shown
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 $0.00264 $0.15299
Opus 5.5 $0.00106 $0.06120
Sonnet 5.5 $0.00053 $0.03060
Haiku 4.5 $0.00026 $0.01530

Measured yesterday against content hash 81c503ca20c4, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

wind-ui 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 yesterday.

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:

  • wind-ui — 100% identical, 0 lines differ
skills/wind-ui/SKILL.md · 493 lines

How it starts

The opening of the file, as written. The whole thing — 493 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Wind UI 1.9

Utility-first Flutter styling. Every visual decision lives in a className: String? parsed at build time into an immutable WindStyle and composed into a native Flutter widget tree. Tailwind syntax (flex, p-4, dark:bg-gray-800, hover:shadow-lg), Flutter physics.

This skill assumes the host app already depends on fluttersdk_wind and has WindTheme wrapping MaterialApp. If a fresh project needs setup (rare; the skill normally triggers on an already-installed project), see Quick install at the bottom.

0. Before writing UI in this project

Three quick checks. Each pays off across the whole session.

  1. Confirm Wind is installed. Look at pubspec.yaml for fluttersdk_wind:. If absent, jump to §13 first.
  2. Read the project's WindThemeData setup. Usually in lib/main.dart or lib/config/wind.dart. Note any custom color families (primary, accent, incident, etc.): those become available as bg-primary-500, text-incident-700, etc. without registration. Skip this and the agent risks writing tokens that silently no-op, or missing the brand palette entirely.
  3. Scan one existing view in lib/ for the project's className idioms. Triple-quoted style? Single-line preferred? Custom states (pressed:, expanded:)? Match the surrounding code, don't invent a new dialect.

After these, the agent has the project's color landscape, breakpoint set, and className voice loaded.

The parser cache is near-100% hit-rate in production. Do not worry about className parse overhead; the same className parses exactly once for its (breakpoint, brightness, platform, states) tuple. Prefer expressive className over inline BoxDecoration / EdgeInsets for "performance" reasons; the cache handles it.

1. Core Laws

These hold for every line of Wind code. Apply each as a hard constraint, not a suggestion.

  1. className is the styling surface. Inline Dart props (backgroundColor on WDiv, foregroundColor on WText) exist only as runtime-dynamic escape hatches for values the cache key cannot represent. Default to className. Never reach for BoxDecoration, EdgeInsets, TextStyle when a token covers it.

Read the full file on GitHub · 493 lines

Files

What ships with it

10 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. yesterday Changed 81c503ca20c4
  2. 5d ago Changed 47f3b9725964
  3. 6d ago Changed bb647e9aee0a
  4. 7d ago Changed 0c442fbe2dbe
  5. 8d ago Changed 0fee4156364a
  6. 12d ago Changed b3bfaddf22ab
  7. 20d ago Changed 51b35814921c
  8. 22d ago Changed 19176e079e5f
  9. 26d ago Changed 18b100b59036
  10. 27d ago First seen · 493 lines · 264 tokens per session scan A 8a5fbdab8c71

Subscribe to this mod's changes

wind-ui is a skill published in the GitHub repository fluttersdk/wind (42 stars, last pushed yesterday), licensed MIT. It adds 264 tokens to every session and 15,299 once invoked, about $0.0011 per session on Opus 5.5. 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.