{
  boxShadow: {
    thin: {
      $value: 'inset 0 0 0 {borderWidth.thin}',
      $description: 'Thin shadow used instead of a border to prevent layout shift',
      $type: 'custom-string',
    },
    thick: {
      $value: 'inset 0 0 0 {borderWidth.thick}',
      $description: 'Thick shadow (2px) used instead of a border for emphasis without layout shift',
      $type: 'custom-string',
    },
    thicker: {
      $value: 'inset 0 0 0 {borderWidth.thicker}',
      $description: 'Thickest shadow (4px) used for high emphasis borders without layout shift. Use sparingly for maximum visual impact',
      $type: 'custom-string',
    },
  },
  borderWidth: {
    default: {
      $value: '{borderWidth.thin}',
      $description: 'Semantic token: preferred default border width for standard component borders. Use this in normal component code unless a specific scale value is required.',
      $type: 'dimension',
      $extensions: {
        'org.primer.figma': {
          collection: 'functional/size',
          scopes: ['borderWidth', 'effectFloat'],
        },
      },
    },
    thin: {
      $value: {value: 1, unit: 'px'},
      $description: 'Scale token: 1px border width. Use when selecting an explicit size from the border-width scale.',
      $type: 'dimension',
      $extensions: {
        'org.primer.figma': {
          collection: 'functional/size',
          scopes: ['borderWidth', 'effectFloat'],
        },
      },
    },
    thick: {
      $value: {value: 2, unit: 'px'},
      $description: 'Scale token: 2px border width for emphasis or focus states.',
      $type: 'dimension',
      $extensions: {
        'org.primer.figma': {
          collection: 'functional/size',
          scopes: ['borderWidth', 'effectFloat'],
        },
        'org.primer.llm': {
          usage: ['focus-indicator', 'selected-state', 'emphasis-border'],
          rules: 'MUST use for focus rings on interactive elements. Do NOT use for subtle dividers.',
        },
      },
    },
    thicker: {
      $value: {value: 4, unit: 'px'},
      $description: 'Scale token: 4px border width for strong emphasis.',
      $type: 'dimension',
      $extensions: {
        'org.primer.figma': {
          collection: 'functional/size',
          scopes: ['borderWidth', 'effectFloat'],
        },
      },
    },
  },
}