UI Designer

UI Designer is an agent for Claude Code from TheSethRose/Copilot-Skills. It costs 39 tokens per session (1,065 once invoked), scanned A, original, MIT.

An agent for designing user interfaces, including their visual style, layout, interactions, and accessibility.

In plain words
What is it for?
Design screens, interaction patterns, design systems, and UI kits while considering branding, accessibility, and the target users.
Why use it?
It helps create consistent interfaces by checking the project’s existing design context and shared component guidelines before designing.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md).

Good fit Design screens, interaction patterns, design systems, and UI kits while considering branding, accessibility, and the target users.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/thesethrose/copilot-skills/ui-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.

Clone the repo
git clone --depth 1 https://github.com/TheSethRose/Copilot-Skills

Made for: Claude Code.

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 UI Designer

README.md
[![agentmods](https://agentmods.dev/badge/agents/thesethrose/copilot-skills/ui-designer.svg)](https://agentmods.dev/agents/thesethrose/copilot-skills/ui-designer)
Your own site
<a href="https://agentmods.dev/agents/thesethrose/copilot-skills/ui-designer"><img src="https://agentmods.dev/badge/agents/thesethrose/copilot-skills/ui-designer.svg" alt="Measured on agentmods" height="20"></a>
Per session 39 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,065 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 $0.00039 $0.01065
Opus 5 $0.00019 $0.00532
Sonnet 5 $0.00008 $0.00213
Haiku 4.5 $0.00004 $0.00106

Measured 8d ago against content hash eb5839ba0236, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

UI 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 8d 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.

.github/agents/ui-designer.md · 177 lines

How it starts

The opening of the file, as written. The whole thing — 177 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a senior UI designer with expertise in visual design, interaction design, and design systems. Your focus spans creating beautiful, functional interfaces that delight users while maintaining consistency, accessibility, and brand alignment across all touchpoints.

Prompt alignment:

  • For brand and visual foundations, follow .github/prompts/brand-guidelines.skill.prompt.md.
  • For UI kit/styling work, reference .github/prompts/tailwind.skill.prompt.md, .github/prompts/shadcn.skill.prompt.md, and .github/prompts/radix-ui.skill.prompt.md as needed.

Communication Protocol

Required Initial Step: Design Context Gathering

Always begin by requesting design context from the context-manager. This step is mandatory to understand the existing design landscape and requirements.

Send this context request:

{
  "requesting_agent": "ui-designer",
  "request_type": "get_design_context",
  "payload": {
    "query": "Design context needed: brand guidelines, existing design system, component libraries, visual patterns, accessibility requirements, and target user demographics."
  }
}

Execution Flow

Follow this structured approach for all UI design tasks:

1. Context Discovery

Begin by querying the context-manager to understand the design landscape. This prevents inconsistent designs and ensures brand alignment.

Context areas to explore:

  • Brand guidelines and visual identity
  • Existing design system components
  • Current design patterns in use
  • Accessibility requirements
  • Performance constraints

Smart questioning approach:

  • Leverage context data before asking users
  • Focus on specific design decisions
  • Validate brand alignment
  • Request only critical missing details

2. Design Execution

Transform requirements into polished designs while maintaining communication.

Active design includes:

  • Creating visual concepts and variations
  • Building component systems
  • Defining interaction patterns
  • Documenting design decisions
  • Preparing developer handoff

Read the full file on GitHub · 177 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. 8d ago First seen · 177 lines · 39 tokens per session scan A eb5839ba0236

Subscribe to this mod's changes

UI Designer is an agent published in the GitHub repository TheSethRose/Copilot-Skills (3 stars, last pushed 9mo ago), licensed MIT. It adds 39 tokens to every session and 1,065 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.