frontend-designer

frontend-designer is a skill for Claude Code from pranav8494/team-of-agents. It costs 45 tokens per session (2,147 once invoked), scanned A, original, MIT.

A frontend development guide for building the visual and interactive parts of web applications. It covers semantic HTML, CSS, JavaScript, React, accessibility, responsive layouts, and web performance.

In plain words
What is it for?
Building UI components and pages, writing styles, improving responsive behaviour and accessibility, reviewing interactive details, and addressing frontend performance.
Why use it?
It helps create interfaces that work across screen sizes and for people using assistive technology. It also encourages solving layout and interaction problems with the simplest suitable web technology.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the team-of-agents plugin — 18 skills, 17 agents, 1 hook shipped together

Good fit Building UI components and pages, writing styles, improving responsive behaviour and accessibility, reviewing interactive details, and addressing frontend performance.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/pranav8494/team-of-agents/frontend-designer
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 pranav8494/team-of-agents --skill frontend-designer
Clone the repo
git clone --depth 1 https://github.com/pranav8494/team-of-agents

Made for: Claude Code.

Or install team-of-agents, the plugin that ships this one along with the rest of its 18 skills, 17 agents, 1 hook.

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 frontend-designer

README.md
[![agentmods](https://agentmods.dev/badge/skills/pranav8494/team-of-agents/frontend-designer/github.svg)](https://agentmods.dev/skills/pranav8494/team-of-agents/frontend-designer)
Your own site
<a href="https://agentmods.dev/skills/pranav8494/team-of-agents/frontend-designer"><img src="https://agentmods.dev/badge/skills/pranav8494/team-of-agents/frontend-designer/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 frontend-designer

Your own site · 80×15
<a href="https://agentmods.dev/skills/pranav8494/team-of-agents/frontend-designer"><img src="https://agentmods.dev/badge/skills/pranav8494/team-of-agents/frontend-designer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,147 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 $0.00045 $0.02147
Opus 5 $0.00023 $0.01073
Sonnet 5 $0.00009 $0.00429
Haiku 4.5 $0.00005 $0.00215

Measured 12d ago against content hash ede256ee5e04, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

frontend-designer 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 12d 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/frontend-designer/SKILL.md · 188 lines

How it starts

The opening of the file, as written. The whole thing — 188 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Frontend Designer

Iron Law

Semantic HTML first, CSS second, JavaScript third. WCAG 2.1 AA is non-negotiable,
inaccessible UIs exclude users and create legal risk. Never reach for JS to solve what HTML or CSS already solves.

Before Taking Any Action

  1. Announce what you intend to do and why, e.g. "I'd like to create src/components/Button.tsx to implement the primary button variant from your design system"
  2. Explain the approach, component structure, styling strategy, accessibility considerations, trade-offs
  3. Ask for confirmation before writing or editing any file, running any command, or fetching any external resource
  4. Report what was created or changed when done, and how to use or extend it

Task Approach

Use this table to determine what to produce for each task type:

User asks for What to produce
React component Functional component with TypeScript props interface, semantic HTML structure, ARIA attributes where needed, and a usage example
New page or layout Semantic HTML skeleton (landmark regions: header, main, nav, footer), CSS architecture decision, responsive breakpoints, and accessibility notes
CSS / styling Scoped styles using the appropriate architecture for the codebase (see CSS Architecture Decision Table), design tokens applied, no magic numbers
Accessibility fix Specific WCAG 2.1 AA violation identified, corrected code, and explanation of which ARIA rule applies
Performance improvement Identified metric (LCP / INP / CLS), root cause, concrete code change (e.g. loading="lazy", dynamic import(), skeleton screen), and expected impact
Design system component Compound component pattern where appropriate, full TypeScript types, all interactive states (default, hover, focus, disabled, error), usage example
Form Semantic <form> with <label> associations, inline on-blur validation, accessible error messages with aria-describedby, loading and success states
Animation or transition CSS-first implementation with prefers-reduced-motion media query; JS animation only if CSS cannot achieve the effect
Code review of UI code Run the five-phase review (Accessibility → React correctness → TypeScript → Performance → Tests) and produce a structured report with severity labels
Bundle / performance audit Bundle analyser output interpretation, dynamic import opportunities, barrel file issues, and specific file-level recommendations

Read the full file on GitHub · 188 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. 12d ago First seen · 188 lines · 45 tokens per session scan A ede256ee5e04

Subscribe to this mod's changes

frontend-designer is a skill published in the GitHub repository pranav8494/team-of-agents (7 stars, last pushed 1mo ago), licensed MIT. It adds 45 tokens to every session and 2,147 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 2026-08-31.

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