design

design is a skill for Claude Code from dravensoft-dev/arena. It costs 110 tokens per session (5,084 once invoked), scanned A, original, MIT.

A design system for building application interfaces with React or Angular, using shared design rules, reusable components, and Tailwind CSS support. It covers colours, typography, spacing, motion, icons, and accessibility patterns.

In plain words
What is it for?
Use it to design or prototype product screens, apply a shared visual style, choose accessible interface patterns, and build React or Angular interfaces with the Arena component libraries.
Why use it?
It gives a project consistent interface rules and ready-made patterns for common screens such as forms, tables, navigation, dialogs, charts, and cards. Projects can bring their own colours and fonts.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: mentions AGENTS.md.

Part of the arena plugin — 1 skill, 1 MCP server shipped together

Good fit Use it to design or prototype product screens, apply a shared visual style, choose accessible interface patterns, and build React or Angular interfaces with the Arena component libraries.

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

Made for: Claude Code.

Or install arena, the plugin that ships this one along with the rest of its 1 skill, 1 MCP server.

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 design

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/dravensoft-dev/arena/design"><img src="https://agentmods.dev/badge/skills/dravensoft-dev/arena/design.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 110 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,084 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 $0.00110 $0.05084
Opus 5.5 $0.00044 $0.02034
Sonnet 5.5 $0.00022 $0.01017
Haiku 4.5 $0.00011 $0.00508

Measured 4d ago against content hash b47c19126eff, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

design 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 4d 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/design/SKILL.md · 234 lines

How it starts

The opening of the file, as written. The whole thing — 234 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Arena

Arena is Dravensoft's design language: a token layer, React and Angular component libraries built on that layer, and a shared Tailwind layer. Arena's identity is warm black under bone text, with crimson as the voice and gold as distinction.

Arena is a product-application library. Arena ships tables, forms, navigation, dialogs, charts, cards and the states around them, which is the furniture of an application somebody works in. A media or a consumer product is a different register. A photo wall, a feed of posts, a document editor or a game map is markup you write yourself. The skin travels either way, because a style plugin's answers hold whatever the product is. When that is your product, or one screen of it, read references/media-register.md. That page is what Arena hands you instead of a component: the pattern your markup binds, the parts the package already ships for it, and the one rule that bends.

This file routes. Read only what your task needs. The rules below bind the code you write. The table under them routes. Read the rules once per project rather than once per screen.

Which job is this?

Building something with Arena, meaning a screen, a prototype, a skin or an integration: stay here and follow the table below. On a project you have not walked yet, start at references/cold-start.md instead. That page's first question is whether the project already carries Arena. A project that does gets a short walk, which reads the config and the style plugin already there. A project that does not gets the only page that asks what this product looks like before anything answers.

Changing Arena itself, meaning adding a component, moving a token, or editing a contract or a gate: read AGENTS.md instead. That file is the root of the other branch and this file is not. The path is relative to a clone. A published copy of this file points that link at the repository, because that branch belongs to the repository and reaches nothing a package or this site carries.

Read the full file on GitHub · 234 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. 4d ago Changed · +12 lines b47c19126eff
  2. 20d ago Changed · +5 lines 3c9d3ba03d9e
  3. 1mo ago Changed 1c9cd2d356f6
  4. 1mo ago Changed · +17 lines b84616dc9a03
  5. 1mo ago Changed e9425f058c3b
  6. 1mo ago First seen · 200 lines · 110 tokens per session scan A 245b9da3f6bb

Subscribe to this mod's changes

design is a skill published in the GitHub repository dravensoft-dev/arena (2 stars, last pushed 4d ago), licensed MIT. It adds 110 tokens to every session and 5,084 once invoked, about $0.0004 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 2026-08-31.

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