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browser-testing

Automate browser testing and debugging via Chrome DevTools Protocol.

Updated Nov 6, 2025
Search Tags:#automation#screenshots#cli#browser-testing#chrome-devtools#network-inspection#ui-debugging
One-click install
npx skills add https://github.com/syz51/claude-code-settings --skill browser-testing-syz51
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: browser-testing
Source: https://github.com/syz51/claude-code-settings/tree/main/skills/browser-testing
Command: npx skills add https://github.com/syz51/claude-code-settings --skill browser-testing-syz51

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires fastmcp, and includes scripts (resource) components.

What problem does it solve?

Browser automation, testing, and debugging tasks using Chrome DevTools Protocol to streamline repetitive UI tasks and data collection.

Core Features & Use Cases

  • Take screenshots, inspect network activity, test UI flows, and debug console errors with a single CLI.
  • Navigate pages, manage multiple pages, capture DOM snapshots and element UIDs for deterministic interactions.
  • Emulate network/CPU/geolocation, resize viewports, and collect performance data for diagnostics.

Quick Start

Begin by taking a snapshot to retrieve element UIDs, then drive interactions with the browser CLI to navigate, click, and wait-for text.

Frequently Asked Questions about browser-testing

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I automate browser testing and take screenshots with Chrome DevTools Protocol?▼

Automate browser testing and take screenshots using a Python CLI that coordinates with Chrome DevTools Protocol to control browser behavior, capture page snapshots, and inspect network activity across sessions.

How does Chrome DevTools network inspection work for UI debugging?▼

Network inspection for UI debugging works by using Chrome DevTools Protocol to monitor network activity, capture DOM snapshots, assign element UIDs, and collect performance profiling data for deterministic interactions.

Does fastmcp support automating UI flows across multiple browser pages?▼

Yes, fastmcp supports automating UI flows across multiple browser pages by coordinating Python CLI commands to navigate pages, manage sessions, and interact with elements by UID deterministically.

What's the best way to debug console errors and test UI flows in Chrome?▼

The best way to debug console errors and test UI flows in Chrome is using a Python CLI that drives Chrome DevTools Protocol to snapshot elements, inspect console output, and execute deterministic click interactions.

Can I emulate network conditions and resize viewports when automating browser testing?▼

Yes, you can emulate network conditions, CPU throttling, and geolocation, as well as resize viewports, while automating browser testing to collect diagnostic performance data across different environments.

Why do I need to snapshot element UIDs before driving browser interactions?▼

You need to snapshot element UIDs before driving browser interactions because the CLI uses these deterministic identifiers to accurately navigate, click, and wait-for text across dynamic pages and sessions.

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