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Playwright MCP Server

Official
by microsoft
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TypeScript
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browser_network_requests

Read-only

Get a numbered list of network requests since page load, with optional URL regex filtering for targeted inspection.

Instructions

Returns a numbered list of network requests since loading the page. Use browser_network_request with the number to get full details.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
filterNoOnly return requests whose URL matches this regexp (e.g. "/api/.*user").
staticYesWhether to include successful static resources like images, fonts, scripts, etc. Defaults to false.
filenameNoFilename to save the network requests to. If not provided, requests are returned as text.

Schema Changelog

Changes observed during successful MCP inspections. Dates show when Glama detected each change.

  1. Changed6 schema fields changedv0.0.72
    • changedInput schema / $schema
      Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"
    • addedInput schema / properties / filename
      Added value: +{
+  "description": "Filename to save the network requests to. If not provided, requests are returned as text.",
+  "type": "string"
+}
    • addedInput schema / properties / filter
      Added value: +{
+  "description": "Only return requests whose URL matches this regexp (e.g. \"/api/.*user\").",
+  "type": "string"
+}
    • removedInput schema / properties / includeStatic
      Removed value: -{
-  "default": false,
-  "description": "Whether to include successful static resources like images, fonts, scripts, etc. Defaults to false.",
-  "type": "boolean"
-}
    • addedInput schema / properties / static
      Added value: +{
+  "default": false,
+  "description": "Whether to include successful static resources like images, fonts, scripts, etc. Defaults to false.",
+  "type": "boolean"
+}
    • addedInput schema / required
      Added value: +[
+  "static"
+]
  2. Changed1 schema field changedv1.0.1
    • addedInput schema / properties / includeStatic
      Added value: +{
+  "default": false,
+  "description": "Whether to include successful static resources like images, fonts, scripts, etc. Defaults to false.",
+  "type": "boolean"
+}
  3. First observedv1.0.0

TDQS

A4/5.0
Behavior3/5

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

Annotations already indicate readOnlyHint=true, description adds scope (since page load) and output format (numbered list), but no other behavioral traits.

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?

Two sentences, no redundancy, front-loaded with purpose.

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

Completeness4/5

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

No output schema but description hints at output format; lacks pagination/limit info but adequate for a read-only list tool.

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?

Schema covers all parameters with descriptions; description adds no extra semantic value beyond what schema provides.

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?

Clearly states it returns a numbered list of network requests since page load, and distinguishes from sibling browser_network_request for full details.

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

Usage Guidelines4/5

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

Explicitly mentions when to use sibling for full details, but lacks constraints or when-not-to-use scenarios.

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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