get_external_css

Fetches and analyzes external CSS files to extract design tokens and variables.

Token-Optimized: Returns ONLY design tokens by default to avoid response size limits.

Parameters

Parameter	Type	Required	Description
`cssUrl`	string	Yes	URL to the CSS file
`extractTokens`	boolean	No	Extract tokens (default: true)
`includeFullCSS`	boolean	No	Include full CSS content (default: false)
`maxContentSize`	number	No	Maximum content size in characters

{
  "tool": "get_external_css",
  "arguments": {
    "cssUrl": "https://my-storybook.com/assets/main.css"
  }
}

{
  "tool": "get_external_css",
  "arguments": {
    "cssUrl": "./assets/tokens.css",
    "includeFullCSS": true,
    "maxContentSize": 10000
  }
}

Only accepts URLs from the same domain as your Storybook instance.