get_core_web_vitals
Measure Core Web Vitals metrics (LCP, FID, CLS) for any website to assess user experience. Specify URL, device, and thresholds to evaluate performance and optimize page speed.
Instructions
Get Core Web Vitals metrics 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 | ||
| 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": {
"additionalProperties": false,
"properties": {
"cls": {
"description": "Cumulative Layout Shift threshold",
"minimum": 0,
"type": "number"
},
"fid": {
"description": "First Input Delay threshold in milliseconds",
"minimum": 0,
"type": "number"
},
"lcp": {
"description": "Largest Contentful Paint threshold in seconds",
"minimum": 0,
"type": "number"
}
},
"type": "object"
},
"url": {
"description": "URL to audit",
"type": "string"
}
},
"required": [
"url"
],
"type": "object"
}