A set of standards for creating or changing user interfaces, including pages, components, styles, layouts, design tokens, text, and browser behaviour. Design tokens are shared values such as colours, spacing, and font sizes.

Use it for any UI task, from changing a button or label to building pages and components. It helps manage design files, theme values, interface state, and UI copy.

It gives UI work a consistent design and implementation contract, including rules for themes, frontend practices, state management, and visual behaviour.

How davidvornholt/mail-mcp configures Claude Code and Codex

Reuse

Borrowing it

Nothing to install: this file belongs to davidvornholt/mail-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/davidvornholt/mail-mcp/main/.agents/skills/ux-ui/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/davidvornholt/mail-mcp

Made for: Claude Code, Codex.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/davidvornholt/mail-mcp/ux-ui/github.svg)](https://agentmods.dev/skills/davidvornholt/mail-mcp/ux-ui)

Your own site

<a href="https://agentmods.dev/skills/davidvornholt/mail-mcp/ux-ui"><img src="https://agentmods.dev/badge/skills/davidvornholt/mail-mcp/ux-ui/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/davidvornholt/mail-mcp/ux-ui"><img src="https://agentmods.dev/badge/skills/davidvornholt/mail-mcp/ux-ui.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 27 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 401 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 unknown 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.

Model	Per session	Once invoked
Fable 5.1	$0.00027	$0.00401
Opus 5	$0.00014	$0.00200
Sonnet 5	$0.00005	$0.00080
Haiku 4.5	$0.00003	$0.00040

Measured 6d ago against content hash 07597b4240e4, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

ux-ui 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 6d 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/skills/ux-ui/SKILL.md · 32 lines

The source is not reproduced here

No licence file

Read it on GitHub

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.

6d ago Changed · -13 lines · -47 tokens per session 07597b4240e4
9d ago First seen · 45 lines · 74 tokens per session scan A 88e45f274052

Subscribe to this mod's changes

ux-ui is a skill published in the GitHub repository davidvornholt/mail-mcp (1 stars, last pushed 4d ago), with no licence file. It adds 27 tokens to every session and 401 once invoked, about $0.0001 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.

CSS and styling Design and UX Frontend bun cli effect email imap mcp

frontend-philosophy

Visual & UI philosophy (The 5 Pillars of Intentional UI). Understand deeply to avoid "AI slop" and create distinctive, memorable interfaces.

kdcokenny/ocx · 36 tokens

apple-design

Apple's approach to interface design and fluid, physical motion, translated for the web. Use when building or reviewing gesture-driven UI, spring animations, drag/swipe/sheet interactions, momentum and interruptible transitions, translucent materials and depth, typography (optical sizing, tracking, leading)…

samuelpatro/.claude · 80 tokens

create-design-system

You are an expert design systems architect.

bdmorin/the-no-shop · 12 tokens

react-shadcn

Builds UI components for a React SPA (Vite/CRA) with shadcn/ui 3.8.0 on Radix UI primitives (not Base UI) and Tailwind CSS v4: forms (Field/FieldLabel/FieldError pattern with TanStack Form, never React Hook Form), overlays (Dialog, Sheet, Drawer, Popover, Tooltip), feedback (Alert, Sonner toasts, Progress, Skeleton)…

fusengine/codex · 35 tokens

shadcn-registries

Use when configuring shadcn/ui registries, components.json, or CLI add/init commands.

fusengine/codex · 26 tokens

shadcn-theming

Use when defining or auditing shadcn/ui design tokens, OKLCH colors, or dark/light mode CSS variables.

fusengine/codex · 31 tokens

mail-mcp: Skill for Claude Code