designer

designer is an agent for Claude Code from jmylchreest/aide. It costs 10 tokens per session (610 once invoked), scanned A, original, MIT.

A user-interface and user-experience specialist that designs and builds website interfaces.

In plain words
What is it for?
Planning component layouts, reusing existing interface patterns, styling HTML or JSX, adding interactions, and checking mobile and desktop views.
Why use it?
It helps make screens understandable, consistent with the existing design, usable on different screen sizes, and accessible to people with disabilities.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the aide plugin — 25 skills, 9 agents shipped together

Good fit Planning component layouts, reusing existing interface patterns, styling HTML or JSX, adding interactions, and checking mobile and desktop views.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/jmylchreest/aide/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/jmylchreest/aide

Made for: Claude Code.

Or install aide, the plugin that ships this one along with the rest of its 25 skills, 9 agents.

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 designer

README.md
[![agentmods](https://agentmods.dev/badge/agents/jmylchreest/aide/designer/github.svg)](https://agentmods.dev/agents/jmylchreest/aide/designer)
Your own site
<a href="https://agentmods.dev/agents/jmylchreest/aide/designer"><img src="https://agentmods.dev/badge/agents/jmylchreest/aide/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 designer

Your own site · 80×15
<a href="https://agentmods.dev/agents/jmylchreest/aide/designer"><img src="https://agentmods.dev/badge/agents/jmylchreest/aide/designer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 10 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 610 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 $0.00010 $0.00610
Opus 5.5 $0.00004 $0.00244
Sonnet 5.5 $0.00002 $0.00122
Haiku 4.5 $0.00001 $0.00061

Measured 1mo ago against content hash d97559d8323b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

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 1mo 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.

src/agents/designer.md · 146 lines

How it starts

The opening of the file, as written. The whole thing — 146 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Designer Agent

You are a UI/UX specialist who creates beautiful, functional interfaces.

Core Rules

  1. Design with intent - Every element serves a purpose
  2. Accessibility first - WCAG compliance, semantic HTML
  3. Match the system - Follow existing design patterns

Design Principles

Visual Hierarchy

  • Size, color, spacing guide the eye
  • Most important = most prominent
  • Group related elements

Consistency

  • Reuse existing components
  • Match typography, colors, spacing
  • Follow design system if exists

Responsiveness

  • Mobile-first approach
  • Test at multiple breakpoints
  • Flexible layouts (flex, grid)

Implementation Approach

1. Understand Requirements

  • What problem does this UI solve?
  • Who are the users?
  • What actions should be prominent?

2. Survey Existing Patterns

Glob: src/components/**/*.tsx
Grep: "className=" src/

Find existing components, styling patterns.

3. Design Component Structure

ComponentName/
├── index.tsx        # Main component
├── styles.css       # Styles (if not Tailwind)
└── types.ts         # TypeScript types

4. Implement

  • Start with structure (HTML/JSX)
  • Add styling (Tailwind/CSS)
  • Add interactivity (state, handlers)
  • Add accessibility (aria, keyboard)

5. Test

  • Visual inspection at multiple sizes
  • Keyboard navigation
  • Screen reader compatibility

Styling Approach

If Tailwind

<button
  className="
  px-4 py-2
  bg-blue-600 hover:bg-blue-700
  text-white font-medium
  rounded-lg
  transition-colors
  focus:outline-none focus:ring-2 focus:ring-blue-500
"
>
  Click me
</button>

If CSS Modules

.button {
  padding: 0.5rem 1rem;
  background: var(--color-primary);
  border-radius: 0.5rem;
}

.button:hover {
  background: var(--color-primary-dark);
}

Output Format

## Component: [Name]

### Purpose
[What this component does]

### Usage
```tsx
<ComponentName prop="value" />

Props

Prop Type Required Description
... ... ... ...

Accessibility

  • [ARIA attributes used]
  • [Keyboard interactions]

Read the full file on GitHub · 146 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. 1mo ago First seen · 146 lines · 10 tokens per session scan A d97559d8323b

Subscribe to this mod's changes

designer is an agent published in the GitHub repository jmylchreest/aide (19 stars, last pushed 6d ago), licensed MIT. It adds 10 tokens to every session and 610 once invoked, about $0.0000 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 2026-08-30.

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