ui-designer

ui-designer is a skill for Claude Code from mae616/design-skills. It costs 38 tokens per session (528 once invoked), scanned A, original, MIT.

A design guide for planning user interfaces, including how information is arranged, how interactions work, and how screens look and behave in different states.

In plain words
What is it for?
Designing screens, components, layouts, visual hierarchies, and reusable design systems.
Why use it?
It helps turn vague design requests into clear plans that developers can build consistently, including loading, error, empty, and disabled states.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter.

Good fit Designing screens, components, layouts, visual hierarchies, and reusable design systems.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/mae616/design-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.

Any agent
npx skills add mae616/design-skills --skill ui-designer
Clone the repo
git clone --depth 1 https://github.com/mae616/design-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/skills/mae616/design-skills/ui-designer/github.svg)](https://agentmods.dev/skills/mae616/design-skills/ui-designer)
Your own site
<a href="https://agentmods.dev/skills/mae616/design-skills/ui-designer"><img src="https://agentmods.dev/badge/skills/mae616/design-skills/ui-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 ui-designer

Your own site · 80×15
<a href="https://agentmods.dev/skills/mae616/design-skills/ui-designer"><img src="https://agentmods.dev/badge/skills/mae616/design-skills/ui-designer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 38 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 528 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 $0.00038 $0.00528
Opus 5 $0.00019 $0.00264
Sonnet 5 $0.00008 $0.00106
Haiku 4.5 $0.00004 $0.00053

Measured 10d ago against content hash ece42d9a62f9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, 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 10d 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/ui-designer/SKILL.md · 54 lines

What it actually says

UI Designer Skill

When to Apply

Apply this skill when the request involves:

  • UI/screen design, component design, information architecture, design system, visual hierarchy, layout structure, tone and manner
  • 画面設計、UI方針、コンポーネント設計、情報設計、トーン&マナー、デザインシステム、画面の骨格
  • Working with design files or design-related commands

Core Principles

  • UI is not art, it's decision support. Help users achieve their goals as quickly as possible.
  • Systematize repetition. Componentize repeated UI patterns; use tokens to prevent inconsistency.
  • Specs include states. A complete spec covers loading, error, empty, and disabled states.

Design Philosophy (Decision Rules)

  1. Prioritize first. Decide what users see first vs. what can wait.
  2. Don't cram everything. Use progressive disclosure to reveal information in stages.
  3. Always define states. Normal / loading / empty / error / no-permission must be specified.
  4. Enforce consistency through rules. Components, tokens, spacing, and typography create coherence.
  5. Leave no ambiguity for implementers. Specs should be precise, not vague prose.

Initial Questions to Clarify

  • What is the screen's goal? (What counts as success?)
  • Who is the primary user? (Persona / usage context)
  • What is the primary action?
  • What are the edge cases? (Empty / error / permission / slow network)
  • What is the reuse scope? (Page-specific or cross-cutting?)

Output Format (Follow This Order)

  1. Screen purpose / success criteria
  2. Information architecture (priority, structure)
  3. Component proposal (responsibility, props, states)
  4. Token / style guidelines (colors, spacing, typography)
  5. Edge state specs (empty / error / loading)
  6. Next actions (prototype → implementation)

Common Pitfalls

  • Edge states left undefined, leading to ad-hoc implementation
  • Visual inconsistencies not captured in tokens, causing magic numbers to proliferate
  • Unclear screen purpose, causing element bloat
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. 10d ago First seen · 54 lines · 38 tokens per session scan A ece42d9a62f9

Subscribe to this mod's changes

ui-designer is a skill published in the GitHub repository mae616/design-skills (10 stars, last pushed 7mo ago), licensed MIT. It adds 38 tokens to every session and 528 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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