Lighthouse MCP

MIT License

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get_lcp_opportunities

Identify Large Contentful Paint (LCP) optimization opportunities for a website by analyzing its performance. Input the URL, choose a device type, and set thresholds to receive actionable recommendations for improving LCP.

Instructions

Get LCP optimization opportunities for a website

Input Schema

Name	Required	Description	Default
`device`	No	Device to emulate (default: desktop)	desktop
`includeDetails`	No	Include detailed metrics and recommendations
`threshold`	No	LCP threshold in seconds (default: 2.5)
`url`	Yes	URL to audit

Input Schema (JSON Schema)

{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "additionalProperties": false,
  "properties": {
    "device": {
      "default": "desktop",
      "description": "Device to emulate (default: desktop)",
      "enum": [
        "desktop",
        "mobile"
      ],
      "type": "string"
    },
    "includeDetails": {
      "default": false,
      "description": "Include detailed metrics and recommendations",
      "type": "boolean"
    },
    "threshold": {
      "description": "LCP threshold in seconds (default: 2.5)",
      "minimum": 0,
      "type": "number"
    },
    "url": {
      "description": "URL to audit",
      "type": "string"
    }
  },
  "required": [
    "url"
  ],
  "type": "object"
}

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