ui-system

A workflow for defining and applying an application's visual system, including colors, typography, spacing, shape, and dark mode. It also guides the choice of interface components and visual assets.

In plain words
What is it for?
Use it when starting a project, changing its theme, adding interface components or visual assets, or correcting an inconsistent design.
Why use it?
It keeps new interface pieces consistent and helps avoid the repetitive look common in automatically generated websites.

Skill for Claude CodeCodex

Part of the agentic-ship plugin — 28 skills, 9 agents, 1 hook, 12 MCP servers shipped together

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.

agentmods
npx agentmods add skills/moasq/agentic-ship/ui-system
Any agent
npx skills add moasq/agentic-ship --skill ui-system
Clone the repo
git clone --depth 1 https://github.com/moasq/agentic-ship

Made for: Claude Code, Codex.

Or install agentic-ship, the plugin that ships this one along with the rest of its 28 skills, 9 agents, 1 hook, 12 MCP servers.

Per session 64 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,415 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00064 $0.01415
Opus 5 $0.00032 $0.00707
Sonnet 5 $0.00013 $0.00283
Haiku 4.5 $0.00006 $0.00142

Measured 3d ago against content hash aaac84912a05, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

ui-system 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 3d 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/ui-system/SKILL.md · 124 lines

How it starts

The opening of the file, as written. The whole thing — 124 lines — stays where its author put it; the contents beside it link to each section on GitHub.

UI System

Downstream contract: paths like src/ and convex/ refer to the product workspace that adopts Agentic Ship, not this tool repo.

This skill implements the tokens, type, density, shape and themes selected in the validated UI plan. Use visual-direction first for substantial interface work; a coherent token system cannot rescue an unexamined composition by itself.

Two of its references are load-on-demand procedures of their own:

  • Before adding any new piece of interfacereferences/component-sources.md, the source matrix (shadcn / MagicUI / Aceternity / 21st / compose) with discovery, install and review procedure. Formerly the component-picker skill.
  • Before adding any image, illustration, icon, or 3Dreferences/asset-pipeline.md, sourcing, treatment, download and performance rules. Formerly the asset-pipeline skill.

Why AI sites look identical

Four defaults frequently signal an unexamined visual system:

  1. The untouched shadcn neutral palette.
  2. Inter, Geist, Space Grotesk, or Poppins as the primary face.
  3. rounded-lg on everything.
  4. Violet-to-blue gradient on white.

Changing those four removes common residue, but does not prove the hierarchy, content, assets, responsive intent or composition are product-specific. The visual-direction rubric owns that review.

1. Tokens live in exactly one place

Tailwind v4 is CSS-first. There is no tailwind.config.js. Everything lives in src/app/globals.css: palette values in the :root and .dark blocks, mapped to Tailwind utilities by the @theme block in the same file. If a config file appears, migrate its contents into that file and delete it.

Replacing the shipped palette has two equivalent routes — pick by who is driving:

  • A human at a browser: generate with tweakcn, export the CSS variables, paste them into the :root and .dark blocks.
  • An agent, headless: follow references/palette-recipes.md — named, fully specified oklch palettes plus the derivation rules for building a new one from a single brand hue. No GUI in the loop, same paste target.

Read the full file on GitHub · 124 lines

Files

What ships with it

4 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.

  1. 3d ago First seen · 124 lines · 64 tokens per session scan A aaac84912a05

Subscribe to this mod's changes

ui-system is a skill published in the GitHub repository moasq/agentic-ship (10 stars, last pushed 4d ago), licensed MIT. It adds 64 tokens to every session and 1,415 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 2026-08-31.

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