Design System Validator Skill

Design System Validator Skill

Purpose

Validate that code adheres to design system specifications, checking token usage, component props, and style consistency.

Capabilities

• Check design token usage in CSS/​SCSS
• Validate component prop usage
• Detect hard-coded values that should use tokens
• Ensure naming convention compliance
• Generate compliance reports
• Integrate with linting tools

Target Processes

• design-system.js
• component-library.js

Integration Points

• ESLint plugins for design systems
• Stylelint for CSS validation
• Custom AST analyzers
• Token documentation

Input Schema

{
  "type": "object",
  "properties": {
    "scanPath": {
      "type": "string",
      "description": "Path to code to validate"
    },
    "tokenDefinitions": {
      "type": "string",
      "description": "Path to design token definitions"
    },
    "rules": {
      "type": "object",
      "properties": {
        "enforceTokenColors": { "type": "boolean", "default": true },
        "enforceTokenSpacing": { "type": "boolean", "default": true },
        "enforceTokenTypography": { "type": "boolean", "default": true },
        "allowHardcodedValues": { "type": "array", "items": { "type": "string" } }
      }
    },
    "fileTypes": {
      "type": "array",
      "items": { "type": "string" },
      "default": ["css", "scss", "tsx", "jsx"]
    },
    "severity": {
      "type": "string",
      "enum": ["error", "warning", "info"],
      "default": "warning"
    }
  },
  "required": ["scanPath", "tokenDefinitions"]
}

Output Schema

{
  "type": "object",
  "properties": {
    "violations": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "file": { "type": "string" },
          "line": { "type": "number" },
          "rule": { "type": "string" },
          "message": { "type": "string" },
          "suggestion": { "type": "string" }
        }
      }
    },
    "summary": {
      "type": "object",
      "properties": {
        "filesScanned": { "type": "number" },
        "totalViolations": { "type": "number" },
        "byRule": { "type": "object" },
        "complianceScore": { "type": "number" }
      }
    },
    "tokenCoverage": {
      "type": "object",
      "description": "Token usage statistics"
    }
  }
}

Usage Example

const result = await skill.execute({
  scanPath: './​src/​components',
  tokenDefinitions: './​tokens/​design-tokens.json',
  rules: {
    enforceTokenColors: true,
    enforceTokenSpacing: true,
    enforceTokenTypography: true
  },
  severity: 'warning'
});