webperf-snippets.net WebMCP Tools, Schemas & Agent Capabilities

webperf-snippets.net

live Unverified (seed import) Developer Tools 4 tools imperative implementation

Tested JavaScript snippets that measure and debug web performance. Your AI agent runs them for you, or you run them yourself in DevTools: the same code every time.

First seen 2026-11-05 · Last seen 2026-11-05 · Source: webmcp.com

Answer 4 · Act 0 · Transact 0 · Score: Not yet scored

Tool inspector

get_snippet_prompt

answer imperative

Get the instructions to run a snippet on any URL with the webperf-snippets CLI, which loads the page in headless Chromium, and to report the result. Pass the URL to measure, or the prompt asks for it.

Page: /

Input schema

Property	Type	Required	Description
`id`	string	yes	Snippet ID, such as "LCP", "INP" or "TTFB-Sub-Parts". Use list_snippets or search_snippets to discover them.
`url`	string	no	URL of the page to measure.

Raw JSON schema

{
  "type": "object",
  "properties": {
    "id": {
      "type": "string",
      "description": "Snippet ID, such as \"LCP\", \"INP\" or \"TTFB-Sub-Parts\". Use list_snippets or search_snippets to discover them."
    },
    "url": {
      "type": "string",
      "description": "URL of the page to measure."
    }
  },
  "required": [
    "id"
  ]
}

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