A design guide for building and restyling interfaces in a React web app that uses TanStack Start, Tailwind CSS, and reusable UI components. It covers pages, dashboards, forms, menus, modals, and game screens.

Use it when creating or restyling landing pages, dashboards, forms, navigation, dialogs, or game overlays such as start screens and heads-up displays.

It gives the coding agent consistent guidance for layout, text, colors, and other visual choices when changing the interface. This helps avoid generic or mismatched screens.

How MasterBrogrammer/SW-OpenC64 configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to MasterBrogrammer/SW-OpenC64. 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/MasterBrogrammer/SW-OpenC64/main/.grok/skills/design-ui/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/MasterBrogrammer/SW-OpenC64

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/masterbrogrammer/sw-openc64/design-ui/github.svg)](https://agentmods.dev/skills/masterbrogrammer/sw-openc64/design-ui)

Your own site

<a href="https://agentmods.dev/skills/masterbrogrammer/sw-openc64/design-ui"><img src="https://agentmods.dev/badge/skills/masterbrogrammer/sw-openc64/design-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/masterbrogrammer/sw-openc64/design-ui"><img src="https://agentmods.dev/badge/skills/masterbrogrammer/sw-openc64/design-ui.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 140 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,547 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 1 finding. 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	$0.00140	$0.01547
Opus 5.5	$0.00056	$0.00619
Sonnet 5.5	$0.00028	$0.00309
Haiku 4.5	$0.00014	$0.00155

Measured 2mo ago against content hash 5ac56024db22, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

design-ui scanned grade A with 1 finding 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 2mo 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- Rendered and eyeballed in a browser (see AGENTS.md verification), not just curl.

.grok/skills/design-ui/SKILL.md · 123 lines

The source is not reproduced here

No licence file

Read it on GitHub

Files

What ships with it

5 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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.

2mo ago First seen · 123 lines · 140 tokens per session scan A 5ac56024db22

Subscribe to this mod's changes

design-ui is a skill published in the GitHub repository MasterBrogrammer/SW-OpenC64 (0 stars, last pushed 2mo ago), with no licence file. It adds 140 tokens to every session and 1,547 once invoked, about $0.0006 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). 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 React

design-ui next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
design-uiMasterBrogrammer/SW-OpenC64	Skill	0	2mo ago	none	A	140	Claude Code
chakra-ui-builderchakra-ui/chakra-ui	Skill	41k	yesterday	MIT	A	214	Claude Code, Codex
antigravity-design-expertsickn33/agentic-awesome-skills	Skill	49k	yesterday	MIT	A	39	Claude Code
tamagui-v6-configtamagui/tamagui	Skill	14k	yesterday	MIT	A	0	Claude Code, Codex
tamagui-theme-generatortamagui/tamagui	Skill	14k	yesterday	MIT	A	48	Claude Code, Codex
liquid-metal-borderMengTo/Skills	Skill	7.3k	yesterday	MIT	A	97	Codex
frontend-ui-dark-tsmicrosoft/skills	Skill	3.2k	yesterday	MIT	A	48	Claude Code

SW-OpenC64: Skill for Claude Code

Borrowing it

Wrote this? Show the measurements

What it costs to keep this loaded

Grade A, and why

Makes network callslowCapability

The source is not reproduced here

No licence file

What ships with it

What this file has done since we first saw it

design-ui compared with skills from other repositories