design-system-authoring

design-system-authoring is a skill for Claude Code, Codex from makifbaysal/tasktrooper. It costs 62 tokens per session (3,717 once invoked), scanned A, original, Apache-2.0.

A guide for creating or changing a design system: the shared rules for colours, fonts, spacing, and interface components. It explains how to derive those rules from existing code, name them, check colour contrast in light and dark themes, and document them.

In plain words
What is it for?
Use it to audit several user interfaces, organise design tokens, document components, check both colour themes, and propose changes with a record of their sources and differences.
Why use it?
It prevents a new design system from being invented without regard to the products that already exist, and helps expose inconsistent values that would otherwise lead to one-off interface decisions.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to audit several user interfaces, organise design tokens, document components, check both colour themes, and propose changes with a record of their sources and differences.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/makifbaysal/tasktrooper/design-system-authoring
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.

Any agent
npx skills add makifbaysal/tasktrooper --skill design-system-authoring
Clone the repo
git clone --depth 1 https://github.com/makifbaysal/tasktrooper

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.

agentmods badge for design-system-authoring

README.md
[![agentmods](https://agentmods.dev/badge/skills/makifbaysal/tasktrooper/design-system-authoring/github.svg)](https://agentmods.dev/skills/makifbaysal/tasktrooper/design-system-authoring)
Your own site
<a href="https://agentmods.dev/skills/makifbaysal/tasktrooper/design-system-authoring"><img src="https://agentmods.dev/badge/skills/makifbaysal/tasktrooper/design-system-authoring/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 design-system-authoring

Your own site · 80×15
<a href="https://agentmods.dev/skills/makifbaysal/tasktrooper/design-system-authoring"><img src="https://agentmods.dev/badge/skills/makifbaysal/tasktrooper/design-system-authoring.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 62 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,717 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 $0.00062 $0.03717
Opus 5.5 $0.00025 $0.01487
Sonnet 5.5 $0.00012 $0.00743
Haiku 4.5 $0.00006 $0.00372

Measured 4d ago against content hash 3029b9a661fd, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

design-system-authoring 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 4d 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.

catalog/agents/ui-designer/skills/design-system-authoring/SKILL.md · 187 lines

How it starts

The opening of the file, as written. The whole thing — 187 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Design System Authoring

Overview

A design system the team will actually build with is derived from the code that already exists, named by role, proven against contrast in both themes, and proposed — never invented in a vacuum. The proposal is what every developer run in those repositories will build with from the day it is approved, so a vague token or a missing dark value becomes a hundred one-off decisions downstream.

Core principle: Read everything first, keep what is shared, give every deliberate difference a reason, and report the rest as drift.

1. Find what exists

Read every repository with a UI (clone the ones not in your workspace: git clone --depth 1 <root_path or remote_url> _design/<name>, then grep_code/read_file with path: "_design/<name>"). Note every value with the file and line it came from.

Stack Tokens live in Fonts Components
Web, Tailwind v4 @theme in src/index.css / app/globals.css; :root and .dark / [data-theme=dark] CSS variables <link> in index.html, @font-face, next/font in app/layout.tsx src/components/{ui,atoms,molecules,…}, INVENTORY.md, components.json, *.stories.tsx
Web, Tailwind v3 tailwind.config.{js,ts} theme.extend + the CSS variables it points at same same
Web, CSS-in-JS createTheme (MUI), extendTheme (Chakra), theme.ts (styled-components / emotion) same same
iOS (SwiftUI) Assets.xcassets/**/*.colorset/Contents.json (Any/Dark), Theme.swift, Color+*.swift, Font+*.swift UIAppFonts in Info.plist Views/Components/, DesignSystem/
Android (Compose) ui/theme/Color.kt, Theme.kt, Type.kt, Shape.kt res/font/ ui/components/
Android (views) res/values/colors.xml, themes.xml, values-night/, dimens.xml res/font/ res/layout/, custom views
Flutter ThemeData, ColorScheme, ThemeExtensions (lib/ui/core/theme/) fonts: in pubspec.yaml lib/ui/core/{atoms,molecules,organisms}

Read the full file on GitHub · 187 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. 4d ago First seen · 187 lines · 62 tokens per session scan A 3029b9a661fd

Subscribe to this mod's changes

design-system-authoring is a skill published in the GitHub repository makifbaysal/tasktrooper (113 stars, last pushed yesterday), licensed Apache-2.0. It adds 62 tokens to every session and 3,717 once invoked, about $0.0002 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 2026-10-09.

Related

Other skills, from other repositories

wireframe

Produce low-fidelity black-and-white UI wireframes as SVGs or viewer pages. Use when asked to wireframe, sketch a screen, draft a layout, make a low-fi mockup, or publish wireframes.

paperclipai/paperclip · 47 tokens

design-critique

Give a structured product design critique — user job clarity, hierarchy, affordance, error states, accessibility, and consistency — focused on what to change, in what order, and why.

paperclipai/paperclip · 42 tokens

paperclip-capsules

Generate, implement, or review Paperclip capsule visuals. Use for capsule art, agent capsules, heartbeat status capsules, identicons, capsule banks, or brand-usage validation.

paperclipai/paperclip · 41 tokens

presentation-template-designer

Plan reusable presentation templates from a creative brief, optional brand assets, or an existing deck. Use when Codex needs to define a slide inventory, choose an editable presentation toolchain, author or validate a template manifest, adapt a visual system for PowerPoint or Google Slides, or prepare a reviewed…

Prompthon-IO/agent-systems-handbook · 70 tokens

design-before-build-gate

Enforces a design/spec approval gate before production implementation. Use when UI, UX, product flows, architecture, API shape, prototypes, visual direction, or user-facing behaviour need signoff before builders write production code.

joelbrilliant/agentic-delivery-skills · 49 tokens

architecture-design

Use this skill to design system architecture with documented trade-offs and decisions before any implementation begins. Activates when a feature, system, or component requires non-trivial structural decisions about how components interact, what data stores to use, or how to decompose a problem.

karthikrshet/aiskills · 60 tokens