web-design-guidelines

web-design-guidelines is a skill for Claude Code from itallstartedwithaidea/agent-skills. It costs 42 tokens per session (1,334 once invoked), scanned A, original, MIT.

A set of web design rules covering accessibility, layout, forms, animation, typography, images, performance, navigation, dark mode, touch targets, and language support.

In plain words
What is it for?
It guides the creation and review of web pages and UI components, including keyboard access, image text alternatives, color contrast, responsive layouts, and internationalization.
Why use it?
It helps catch common usability and accessibility problems while an interface is being designed, reviewed, or coded.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: mentions Claude Code; built for cline.

Part of the all-skills plugin — 73 skills shipped together

Good fit It guides the creation and review of web pages and UI components, including keyboard access, image text alternatives, color contrast, responsive layouts, and internationalization.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/itallstartedwithaidea/agent-skills/web-design-guidelines
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 itallstartedwithaidea/agent-skills --skill web-design-guidelines
Clone the repo
git clone --depth 1 https://github.com/itallstartedwithaidea/agent-skills

Made for: Claude Code.

Or install all-skills, the plugin that ships this one along with the rest of its 73 skills.

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 web-design-guidelines

README.md
[![agentmods](https://agentmods.dev/badge/skills/itallstartedwithaidea/agent-skills/web-design-guidelines/github.svg)](https://agentmods.dev/skills/itallstartedwithaidea/agent-skills/web-design-guidelines)
Your own site
<a href="https://agentmods.dev/skills/itallstartedwithaidea/agent-skills/web-design-guidelines"><img src="https://agentmods.dev/badge/skills/itallstartedwithaidea/agent-skills/web-design-guidelines/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 web-design-guidelines

Your own site · 80×15
<a href="https://agentmods.dev/skills/itallstartedwithaidea/agent-skills/web-design-guidelines"><img src="https://agentmods.dev/badge/skills/itallstartedwithaidea/agent-skills/web-design-guidelines.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 42 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,334 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 $0.00042 $0.01334
Opus 5.5 $0.00017 $0.00534
Sonnet 5.5 $0.00008 $0.00267
Haiku 4.5 $0.00004 $0.00133

Measured 1mo ago against content hash 1eff07a56fc5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

web-design-guidelines 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 1mo 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/web-frontend/web-design-guidelines/SKILL.md · 153 lines

How it starts

The opening of the file, as written. The whole thing — 153 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Web Design Guidelines

Part of Agent Skills™ by googleadsagent.ai™

Description

Web Design Guidelines encodes 100+ rules covering accessibility, focus states, forms, animation, typography, images, performance, navigation, dark mode, touch targets, and internationalization. The agent applies these rules when generating UI code, reviewing designs, or building new pages, producing interfaces that are accessible, performant, and visually consistent by default.

These guidelines synthesize WCAG 2.2 AA requirements, platform-specific HIG conventions, and empirically validated UX patterns into a single actionable ruleset. Rather than treating accessibility as an afterthought or a compliance checkbox, these rules embed it into the generation process: every component is keyboard-navigable, every image has alt text, every color combination meets contrast ratios, and every interactive element has visible focus indicators.

The rules extend beyond accessibility into comprehensive design quality: responsive typography scales, motion preferences, form validation patterns, image optimization, navigation hierarchy, dark mode implementation, touch-friendly sizing, and RTL/i18n support. The result is production-grade UI code that works for all users across all contexts.

Use When

  • Generating new UI components or pages
  • Reviewing frontend code for accessibility compliance
  • Implementing dark mode or theme switching
  • Building forms with validation
  • Adding animations or transitions
  • Optimizing images and media
  • Supporting internationalization or RTL layouts

How It Works

graph TD
    A[UI Code Generation] --> B[Apply Rule Categories]
    B --> C[Accessibility: WCAG 2.2 AA]
    B --> D[Focus States: Visible + Logical]
    B --> E[Forms: Validation + Labels]
    B --> F[Animation: prefers-reduced-motion]
    B --> G[Typography: Fluid Scale]
    B --> H[Images: Responsive + Alt Text]
    B --> I[Performance: Lazy Load + CLS]
    B --> J[Navigation: Keyboard + Hierarchy]
    B --> K[Dark Mode: System Preference]
    B --> L[Touch: 44px Min Target]
    B --> M[i18n: RTL + Locale]
    C --> N[Validated UI Output]
    D --> N
    E --> N
    F --> N
    G --> N
    H --> N
    I --> N
    J --> N
    K --> N
    L --> N
    M --> N

Read the full file on GitHub · 153 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. 1mo ago First seen · 153 lines · 42 tokens per session scan A 1eff07a56fc5

Subscribe to this mod's changes

web-design-guidelines is a skill published in the GitHub repository itallstartedwithaidea/agent-skills (44 stars, last pushed 6mo ago), licensed MIT. It adds 42 tokens to every session and 1,334 once invoked, about $0.0002 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 2026-09-03.

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