platform-web-ui

platform-web-ui is a skill for Claude Code, Codex from Kainiko943/beautiful-ui. It costs 26 tokens per session (221 once invoked), scanned A, original, MIT.

A browser-interface guide for responsive layouts, web interactions, accessibility, and browser-based checks.

In plain words
What is it for?
Use it when building web navigation, forms, tables, filters, responsive layouts, semantic HTML, focus behavior, and reduced-motion support.
Why use it?
It helps designs work across desktop and mobile while covering keyboard use, focus, contrast, and states such as loading or errors.

Skill for Claude CodeCodex

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

Good fit Use it when building web navigation, forms, tables, filters, responsive layouts, semantic HTML, focus behavior, and reduced-motion support.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/kainiko943/beautiful-ui/platform-web-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 Kainiko943/beautiful-ui --skill platform-web-ui
Clone the repo
git clone --depth 1 https://github.com/Kainiko943/beautiful-ui

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 platform-web-ui

README.md
[![agentmods](https://agentmods.dev/badge/skills/kainiko943/beautiful-ui/platform-web-ui/github.svg)](https://agentmods.dev/skills/kainiko943/beautiful-ui/platform-web-ui)
Your own site
<a href="https://agentmods.dev/skills/kainiko943/beautiful-ui/platform-web-ui"><img src="https://agentmods.dev/badge/skills/kainiko943/beautiful-ui/platform-web-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 platform-web-ui

Your own site · 80×15
<a href="https://agentmods.dev/skills/kainiko943/beautiful-ui/platform-web-ui"><img src="https://agentmods.dev/badge/skills/kainiko943/beautiful-ui/platform-web-ui.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 26 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 221 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 $0.00026 $0.00221
Opus 5 $0.00013 $0.00111
Sonnet 5 $0.00005 $0.00044
Haiku 4.5 $0.00003 $0.00022

Measured 9d ago against content hash 3c625eb310cb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

platform-web-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 9d 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.

platform-web-ui/SKILL.md · 28 lines

What it actually says

Platform Web UI

Overview

Use this adapter when the design target is a browser-based product. Preserve the visual direction from beautiful-ui, then adapt it for responsive layout, browser interaction, and web accessibility.

Rules

  • Design desktop and mobile layouts intentionally.
  • Treat hover, focus, active, disabled, loading, validation, and empty states as first-class.
  • Keep forms, tables, filters, and navigation feasible in HTML/CSS terms.
  • Use semantic structure, keyboard navigation, visible focus, and contrast checks.
  • Prefer implementation notes that can be verified in a browser.
  • If the repo uses shadcn/ui or Tailwind CSS, load framework-shadcn-tailwind-ui and map visual decisions to local components, tokens, and variants.

Handoff Must Include

  • Breakpoint behavior
  • Navigation behavior
  • Form and table behavior
  • Focus and keyboard behavior
  • Reduced motion notes
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. 9d ago First seen · 28 lines · 26 tokens per session scan A 3c625eb310cb

Subscribe to this mod's changes

platform-web-ui is a skill published in the GitHub repository Kainiko943/beautiful-ui (5 stars, last pushed 4mo ago), licensed MIT. It adds 26 tokens to every session and 221 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.

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