frontend-dev

frontend-dev is a skill for Claude Code, Codex from HK-hub/AgentSkills. It costs 87 tokens per session (5,466 once invoked), scanned B, a copy of frontend-dev, MIT.

A frontend-building skill for creating complete web pages with interface design, animation, generated media, and written page copy.

In plain words
What is it for?
Use it for landing pages, marketing sites, and product pages that need custom visuals and animated presentation.
Why use it?
It brings the visual design, motion, images, and wording for a page into one workflow instead of leaving those parts disconnected.

Skill for Claude CodeCodex

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

Good fit Use it for landing pages, marketing sites, and product pages that need custom visuals and animated presentation.

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Install with agentmods
npx agentmods add skills/hk-hub/agentskills/frontend-dev
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 HK-hub/AgentSkills --skill frontend-dev
Clone the repo
git clone --depth 1 https://github.com/HK-hub/AgentSkills

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-dev

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/hk-hub/agentskills/frontend-dev"><img src="https://agentmods.dev/badge/skills/hk-hub/agentskills/frontend-dev.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 87 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,466 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin 97% copy Near-identical to another mod 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 $0.00087 $0.05466
Opus 5 $0.00044 $0.02733
Sonnet 5 $0.00017 $0.01093
Haiku 4.5 $0.00009 $0.00547

Measured 9d ago against content hash e2d66a11f25a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade B, and why

frontend-dev scanned grade B with 1 finding 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.

Asks the agent to reveal its instructionsmediumSystem prompt leakage

Directions to print, repeat or translate the system prompt extract configuration the operator did not intend to expose.

3. **Execute:** Show prompt to user, **MUST confirm before generating**, then run script
Origin

This is a copy

97% identical to frontend-dev — 3 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

frontend-dev/SKILL.md · 568 lines

How it starts

The opening of the file, as written. The whole thing — 568 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Frontend Studio

Build complete, production-ready frontend pages by orchestrating 5 specialized capabilities: design engineering, motion systems, AI-generated assets, persuasive copy, and generative art.

Invocation

/frontend-dev <request>

The user provides their request as natural language (e.g. "build a landing page for a music streaming app").

Skill Structure

frontend-dev/
├── SKILL.md                      # Core skill (this file)
├── scripts/                      # Asset generation scripts
│   ├── minimax_tts.py            # Text-to-speech
│   ├── minimax_music.py          # Music generation
│   ├── minimax_video.py          # Video generation (async)
│   └── minimax_image.py          # Image generation
├── references/                   # Detailed guides (read as needed)
│   ├── minimax-cli-reference.md  # CLI flags quick reference
│   ├── asset-prompt-guide.md     # Asset prompt engineering rules
│   ├── minimax-tts-guide.md      # TTS usage & voices
│   ├── minimax-music-guide.md    # Music prompts & lyrics format
│   ├── minimax-video-guide.md    # Camera commands & models
│   ├── minimax-image-guide.md    # Ratios & batch generation
│   ├── minimax-voice-catalog.md  # All voice IDs
│   ├── motion-recipes.md         # Animation code snippets
│   ├── env-setup.md              # Environment setup
│   └── troubleshooting.md        # Common issues
├── templates/                    # Visual art templates
│   ├── viewer.html               # p5.js interactive art base
│   └── generator_template.js     # p5.js code reference
└── canvas-fonts/                 # Static art fonts (TTF + licenses)

Project Structure

Assets (Universal)

All frameworks use the same asset organization:

assets/
├── images/
│   ├── hero-landing-1710xxx.webp
│   ├── icon-feature-01.webp
│   └── bg-pattern.svg
├── videos/
│   ├── hero-bg-1710xxx.mp4
│   └── demo-preview.mp4
└── audio/
    ├── bgm-ambient-1710xxx.mp3
    └── tts-intro-1710xxx.mp3

Asset naming: {type}-{descriptor}-{timestamp}.{ext}

Read the full file on GitHub · 568 lines

Files

What ships with it

60 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. 9d ago First seen · 568 lines · 87 tokens per session scan B e2d66a11f25a

Subscribe to this mod's changes

frontend-dev is a skill published in the GitHub repository HK-hub/AgentSkills (6 stars, last pushed 25d ago), licensed MIT. It adds 87 tokens to every session and 5,466 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it B with 1 finding (asks the agent to reveal its instructions). It is 97% identical to frontend-dev, differing in 3 lines, and is treated as a copy.

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