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bejranonda
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web-validation

Detect JavaScript errors and collect browser diagnostics from web pages.

27|16|Updated Oct 20, 2025
Search Tags:#authentication#screenshots#mobile-testing#web-validation#browser-console#javascript-errors
One-click install
npx skills add https://github.com/bejranonda/LLM-Autonomous-Agent-Plugin-for-Claude --skill web-validation
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: web-validation
Source: https://github.com/bejranonda/LLM-Autonomous-Agent-Plugin-for-Claude/tree/main/skills/web-validation
Command: npx skills add https://github.com/bejranonda/LLM-Autonomous-Agent-Plugin-for-Claude --skill web-validation

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill provides comprehensive methodology for validating web applications, detecting JavaScript errors, monitoring browser console output, capturing screenshots, and testing across mobile and desktop viewports with authentication support.

Core Features & Use Cases

  • Automated JavaScript error detection: Detect and categorize JavaScript errors automatically.
  • Browser console log capture: Collect errors, warnings, and info from the browser console.
  • Network request monitoring: Detect failures and performance issues in web traffic.
  • Authentication support for protected pages: Validate access to protected pages as part of end-to-end testing.
  • Screenshot capture for mobile and desktop: Provide visual evidence across viewports for debugging.
  • React hydration error detection: Identify hydration mismatches during SSR hydration.

Quick Start

Provide the target URL to validate. If a page requires authentication, configure the authentication parameters and run the validation. You can enable screenshot capture to gather visual evidence across devices.

Frequently Asked Questions about web-validation

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

FAQPage Schema
How do I detect JavaScript errors in web applications automatically?▼

JavaScript error detection captures and categorizes errors from browser console output during page load and interaction. This Skill monitors the console in real time, collects error details, and surfaces them as structured diagnostics to identify bugs without manual inspection.

Can I validate authentication-protected pages and dashboards?▼

Yes. This Skill supports authentication handling for protected pages, allowing you to configure credentials and validate access-controlled content as part of end-to-end testing workflows across authenticated user sessions.

How do I test web pages across mobile and desktop viewports?▼

Multi-viewport testing uses 14 device presets to validate layouts and functionality across mobile and desktop screens. The Skill captures screenshots for each viewport to provide visual evidence of rendering and behavior differences across devices.

What does React hydration error detection do?▼

Hydration error detection identifies mismatches between server-rendered HTML and client-side React component state during SSR hydration. The Skill flags these errors automatically so you can diagnose and fix discrepancies in server and client rendering.

Can I monitor network requests and detect failures?▼

Network request monitoring captures HTTP traffic and detects failures and performance issues in web requests. Combined with console logging and error detection, it provides a complete view of page health and external dependency problems.

Do I need headless browser automation to run validation?▼

Yes. Headless browser automation is required to execute validation against live URLs without manual interaction. The Skill handles browser control, page navigation, screenshot capture, and console monitoring programmatically.

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