frontend-design-system

frontend-design-system is a skill for Claude Code, Codex from sourav15mukherjee/skillforge-free-skills. It costs 56 tokens per session (1,267 once invoked), scanned A, original, MIT.

A guide for building user-interface components and pages with a consistent visual style. It covers colors, fonts, spacing, responsive layouts, and accessible components for React, Vue, Svelte, or plain HTML.

In plain words
What is it for?
Use it to create landing pages, dashboards, forms, cards, documentation sites, blogs, SaaS screens, and other frontend interfaces.
Why use it?
Designing each screen separately can produce inconsistent styling and layouts that do not work well on different screen sizes. This provides a structured way to make the interface coherent.

Skill for Claude CodeCodex

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

Good fit Use it to create landing pages, dashboards, forms, cards, documentation sites, blogs, SaaS screens, and other frontend interfaces.

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Install with agentmods
npx agentmods add skills/sourav15mukherjee/skillforge-free-skills/frontend-design-system
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 sourav15mukherjee/skillforge-free-skills --skill frontend-design-system
Clone the repo
git clone --depth 1 https://github.com/sourav15mukherjee/skillforge-free-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 frontend-design-system

README.md
[![agentmods](https://agentmods.dev/badge/skills/sourav15mukherjee/skillforge-free-skills/frontend-design-system/github.svg)](https://agentmods.dev/skills/sourav15mukherjee/skillforge-free-skills/frontend-design-system)
Your own site
<a href="https://agentmods.dev/skills/sourav15mukherjee/skillforge-free-skills/frontend-design-system"><img src="https://agentmods.dev/badge/skills/sourav15mukherjee/skillforge-free-skills/frontend-design-system/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-design-system

Your own site · 80×15
<a href="https://agentmods.dev/skills/sourav15mukherjee/skillforge-free-skills/frontend-design-system"><img src="https://agentmods.dev/badge/skills/sourav15mukherjee/skillforge-free-skills/frontend-design-system.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 56 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,267 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 $0.00056 $0.01267
Opus 5 $0.00028 $0.00633
Sonnet 5 $0.00011 $0.00253
Haiku 4.5 $0.00006 $0.00127

Measured 12d ago against content hash df85b6055b0e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

frontend-design-system 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.

frontend-design-system/SKILL.md · 130 lines

How it starts

The opening of the file, as written. The whole thing — 130 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Frontend Design System

Generate cohesive, production-grade frontend code with matched design tokens, accessible components, and responsive layouts.

Workflow

  1. Understand the request Read the user's UI description. Identify:

    • Page type: landing page, dashboard, form, card grid, documentation, blog, SaaS app
    • Visual mood: professional, playful, bold, calm, luxury, technical
    • Framework: React (default), Vue, Svelte, or vanilla HTML/CSS
    • CSS approach: Tailwind (default), CSS Modules, or plain CSS
  2. Select a visual style mode Based on the mood, pick one:

    Mode Character
    Minimalist White space, thin lines, muted palette
    Brutalist Raw, bold borders, monospace, high contrast
    Glassmorphism Blur backgrounds, transparency, gradients
    Neumorphic Soft shadows, light/dark depth, rounded
    Dark Corporate Deep navy/charcoal, accent highlights
    Soft Gradient Pastel gradients, rounded corners, airy
    Neobrutalist Thick borders, offset shadows, bright colors
    Clean SaaS Light bg, blue/indigo accents, tight spacing
    Editorial Serif headings, generous whitespace, type-driven
    Cyberpunk Neon accents, dark bg, glitch effects
    Nature/Organic Earth tones, soft edges, natural textures
    Playful Bright colors, bouncy shapes, fun typography
  3. Generate the color palette Create a semantic palette with 6-8 tokens:

    :root {
      --color-primary: /* main brand color */;
      --color-primary-hover: /* darker variant */;
      --color-secondary: /* complementary accent */;
      --color-background: /* page background */;
      --color-surface: /* card/panel background */;
      --color-text: /* primary text */;
      --color-text-muted: /* secondary text */;
      --color-border: /* dividers, outlines */;
      --color-success: /* #22c55e or variant */;
      --color-warning: /* #f59e0b or variant */;
      --color-error: /* #ef4444 or variant */;
    }
    

Read the full file on GitHub · 130 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 · 130 lines · 56 tokens per session scan A df85b6055b0e

Subscribe to this mod's changes

frontend-design-system is a skill published in the GitHub repository sourav15mukherjee/skillforge-free-skills (5 stars, last pushed 5mo ago), licensed MIT. It adds 56 tokens to every session and 1,267 once invoked, about $0.0003 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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