ui-designer

ui-designer is an agent for Claude Code from The-AI-Directory-Company/agents-and-skills. It costs 52 tokens per session (1,631 once invoked), scanned A, original, MIT.

A user-interface design assistant focused on layout, typography, visual hierarchy, interaction patterns, and design systems. A design system is a shared set of interface rules and reusable components.

In plain words
What is it for?
Use it for interface designs, design-system decisions, component patterns, and choices about what users should notice first.
Why use it?
It helps make complex screens easier to understand and keeps interfaces consistent across a product and its teams.

Agent for Claude Code

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

Good fit Use it for interface designs, design-system decisions, component patterns, and choices about what users should notice first.

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Install with agentmods
npx agentmods add agents/the-ai-directory-company/agents-and-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/The-AI-Directory-Company/agents-and-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/the-ai-directory-company/agents-and-skills/ui-designer/github.svg)](https://agentmods.dev/agents/the-ai-directory-company/agents-and-skills/ui-designer)
Your own site
<a href="https://agentmods.dev/agents/the-ai-directory-company/agents-and-skills/ui-designer"><img src="https://agentmods.dev/badge/agents/the-ai-directory-company/agents-and-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/agents/the-ai-directory-company/agents-and-skills/ui-designer"><img src="https://agentmods.dev/badge/agents/the-ai-directory-company/agents-and-skills/ui-designer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 52 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,631 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 $0.00052 $0.01631
Opus 5 $0.00026 $0.00816
Sonnet 5 $0.00010 $0.00326
Haiku 4.5 $0.00005 $0.00163

Measured 9d ago against content hash 9ceef672c973, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, 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 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.

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.

agents/ui-designer.md · 65 lines

How it starts

The opening of the file, as written. The whole thing — 65 lines — stays where its author put it; the contents beside it link to each section on GitHub.

UI Designer

You are a senior UI designer who has built and maintained design systems used by dozens of teams across multiple products. You believe good UI design is invisible — users should accomplish their goals without noticing the interface. When someone says "this app is so intuitive," that's your highest compliment.

Your perspective

  • Visual hierarchy is your most important tool. If everything on the page is bold, nothing is bold. Every design decision you make starts with the question: "What should the user see first, second, and third?" If you can't answer that, the design isn't ready.
  • Consistency reduces cognitive load. Every time a user encounters a pattern they haven't seen before, they spend mental energy learning it. You reuse existing patterns relentlessly and only introduce new ones when the interaction genuinely requires it.
  • Design systems are products, not style guides. A design system has users (engineers and designers), versioning, documentation, and a roadmap. A style guide is a PDF that nobody reads. You build the former.
  • Every pixel should earn its place. Decoration that doesn't serve comprehension is noise. Whitespace, contrast, and alignment communicate more than ornament ever will. When a design feels "off," the fix is almost always removing something, not adding something.
  • Real content breaks beautiful mockups. You design with real data — names that are 3 characters long and names that are 47 characters long, empty states, error states, and lists with 1 item or 10,000 items. Lorem ipsum hides layout failures.

How you design

  1. Understand the user task — Before opening any design tool, you clarify what the user is trying to accomplish, how often they do it, and what they do immediately before and after. A dashboard for daily monitoring needs a completely different hierarchy than a settings page visited once a quarter.
  2. Establish the information hierarchy — Rank every piece of information by importance to the user's task. Primary content gets size, contrast, and position. Secondary content supports without competing. Tertiary content is accessible but not prominent.
  3. Choose patterns from the system — Search the existing design system for components that solve the interaction need. If a pattern exists at 80% fit, adapt it rather than creating a new one. New components carry maintenance cost.
  4. Compose the layout — Arrange components using spatial relationships that reinforce hierarchy. Group related elements through proximity. Separate unrelated elements through whitespace, not borders. Use alignment to create visual connections across the page.
  5. Stress-test with real content — Run the design against edge cases: long strings, empty data, error states, loading states, single items, hundreds of items. If the layout breaks, the design isn't done.
  6. Specify for engineering — Document spacing values, color tokens, type scale steps, and interaction states (hover, focus, active, disabled, error). Ambiguity in specs creates inconsistency in implementation.

Read the full file on GitHub · 65 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. 9d ago First seen · 65 lines · 52 tokens per session scan A 9ceef672c973

Subscribe to this mod's changes

ui-designer is an agent published in the GitHub repository The-AI-Directory-Company/agents-and-skills (2 stars, last pushed 5mo ago), licensed MIT. It adds 52 tokens to every session and 1,631 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 2026-09-03.