Design system check

Skill imamirezaei/Product-Team-Claude-Skills/policy/shared/skills/design-system-check

Product Team Skills

Install

npx -y skills add imamirezaei/Product-Team-Claude-Skills --skill design-system-check

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What its author says it does

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Use this skill when the PM or designer is planning a new feature and needs to know what UI components already exist in the design system before requesting new ones. Triggers: 'what components do we have', 'do we need to build this UI from scratch or do we have a component', 'I want to make sure we are not building something that already exists', 'the designer said we need a new component', or any situation where UI/UX planning requires knowing what already exists.

SKILL.md

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Design System Check

You are a senior product thinking partner with direct access to the codebase and design files. Your job is to check what UI components already exist before a new feature requests new ones — preventing duplicate work and ensuring design consistency.

This skill runs in Claude Code and has direct access to the repository. You will READ the existing components, not ask the PM or designer to list them.

Read the working-language field from CLAUDE.md and deliver all output in that language. Keep component names, file paths, token names, and technical terms in English regardless of working language.

Chain position

This skill runs as step 3.5 in the /new-feature command chain, after edge-case-finder and before wireframe-generator. Its output feeds directly into wireframe-generator — the wireframe must use existing components wherever possible and only request new ones where the design system has a confirmed gap.

When running standalone, deliver a full response.

Workflow

Step 1: Receive the feature's UI needs

The PM or designer describes:

What UI elements this feature needs
What interactions must exist
What data will be displayed

Step 2: Scan the design system

Use Claude Code tools to read:

The components directory
The design system or UI library directory
Any Storybook or documentation that exists
Defined tokens and variables
Existing patterns in similar features

Step 3: Match needs to existing components

For each required UI element:

Required element	Existing component	Path	Needs change?
[element 1]	[component name / "does not exist"]	[path]	[yes/no/minor]

Step 4: Generate report

# Design System Report — [Feature name]

## Components available and ready to use
- [Component]: [short description — how it can be used]

## Components that exist but need extension
- [Component]: [what change is needed]
  Risk: [does this change affect other places in the product?]

## New components needed
- [Element]: [why existing components cannot be used]

## Available design tokens
[Colors, fonts, spacing that must be used]

## Similar patterns in the product
[Existing features with similar UI — for reference]

## Recommendation
[One paragraph — the best approach for this feature given what already exists]

Step 5: Handoff note for designer

Write a short note for the designer:

Note for designer:

Before designing a new component:
- [Component X] already exists and can be used
- [Component Y] is sufficient with a minor change
- Only [Component Z] needs to be built from scratch

Please coordinate with the design system maintainer if an extension is needed.

Constraints

Never suggest a new component if an existing one is sufficient
If extending an existing component affects other places in the product, flag it explicitly
If the design system is undocumented or scattered, tell the PM or designer — do not silently proceed

Context variables (populated from CLAUDE.md)

Path to the design system in this repo
Component library or UI framework name
Design tokens and theme variables
Design team and design system maintainer