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Puppeteer Real Browser MCP Server

Puppeteer Real Browser MCP Server

by withLinda
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TypeScript
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save_content_as_markdown

Save web page content as a markdown file by extracting text or HTML, targeting specific elements with CSS selectors and customizing output formatting.

Instructions

Extract page content and save it as a formatted markdown file

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "filePath": "<filePath>"
    },
    "name": "save_content_as_markdown"
  }
}

Input Schema

NameRequiredDescriptionDefault
filePathYesAbsolute path where the markdown file should be saved (must end with .md)
selectorNoOptional CSS selector to extract content from specific element
contentTypeNoType of content to extract and converttext
formatOptionsNoOptions for markdown formatting

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.6.0

TDQS

B3.4/5.0
Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries full responsibility for disclosing behavioral traits. It states the tool saves content to a file, but it does not mention side effects such as overwriting existing files, permission requirements, or error behavior. The conversion to markdown is implied but not detailed, leaving significant gaps in transparency.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single, clear sentence that front-loads the primary purpose without any redundancy or extraneous words. Every word contributes meaning, making it highly concise.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool has four parameters, a nested object, no output schema, and no annotations, the one-sentence description is insufficient. It fails to explain what happens after saving (e.g., return values, file overwrite behavior), any prerequisites, or potential side effects, leaving the agent without enough context to use the tool safely and effectively.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema provides 100% coverage with detailed descriptions for all four parameters, including nested formatOptions. The description adds no additional parameter semantics, so the baseline score of 3 applies as the schema already carries the explanatory burden.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's function with specific verbs ('extract' and 'save') and identifies both the resource ('page content') and the output ('formatted markdown file'). It distinguishes itself from sibling tools like get_content, which focuses solely on retrieval without saving.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies usage (when you need to save content as markdown), but it does not explicitly state when to use this tool versus alternatives like get_content, nor does it provide exclusions or alternative tool pointers. This leaves usage guidance to be inferred from the name and context.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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