home / skills / jeremylongshore / claude-code-plugins-plus-skills / testing-browser-compatibility

This skill helps you verify cross-browser compatibility by automating tests, analyzing results, and generating actionable reports across environments.

npx playbooks add skill jeremylongshore/claude-code-plugins-plus-skills --skill testing-browser-compatibility

Review the files below or copy the command above to add this skill to your agents.

Files (4)
SKILL.md
3.6 KB
---
name: testing-browser-compatibility
description: |
  Test across multiple browsers and devices for cross-browser compatibility.
  Use when ensuring cross-browser or device compatibility.
  Trigger with phrases like "test browser compatibility", "check cross-browser", or "validate on browsers".
  
allowed-tools: Read, Write, Edit, Grep, Glob, Bash(test:browser-*)
version: 1.0.0
author: Jeremy Longshore <[email protected]>
license: MIT
---
# Browser Compatibility Tester

This skill provides automated assistance for browser compatibility tester tasks.

## Prerequisites

Before using this skill, ensure you have:
- Test environment configured and accessible
- Required testing tools and frameworks installed
- Test data and fixtures prepared
- Appropriate permissions for test execution
- Network connectivity if testing external services

## Instructions

### Step 1: Prepare Test Environment
Set up the testing context:
1. Use Read tool to examine configuration from {baseDir}/config/
2. Validate test prerequisites are met
3. Initialize test framework and load dependencies
4. Configure test parameters and thresholds

### Step 2: Execute Tests
Run the test suite:
1. Use Bash(test:browser-*) to invoke test framework
2. Monitor test execution progress
3. Capture test outputs and metrics
4. Handle test failures and error conditions

### Step 3: Analyze Results
Process test outcomes:
- Identify passed and failed tests
- Calculate success rate and performance metrics
- Detect patterns in failures
- Generate insights for improvement

### Step 4: Generate Report
Document findings in {baseDir}/test-reports/:
- Test execution summary
- Detailed failure analysis
- Performance benchmarks
- Recommendations for fixes

## Output

The skill generates comprehensive test results:

### Test Summary
- Total tests executed
- Pass/fail counts and percentage
- Execution time metrics
- Resource utilization stats

### Detailed Results
Each test includes:
- Test name and identifier
- Execution status (pass/fail/skip)
- Actual vs. expected outcomes
- Error messages and stack traces

### Metrics and Analysis
- Code coverage percentages
- Performance benchmarks
- Trend analysis across runs
- Quality gate compliance status

## Error Handling

Common issues and solutions:

**Environment Setup Failures**
- Error: Test environment not properly configured
- Solution: Verify configuration files; check environment variables; ensure dependencies are installed

**Test Execution Timeouts**
- Error: Tests exceeded maximum execution time
- Solution: Increase timeout thresholds; optimize slow tests; parallelize test execution

**Resource Exhaustion**
- Error: Insufficient memory or disk space during testing
- Solution: Clean up temporary files; reduce concurrent test workers; increase resource allocation

**Dependency Issues**
- Error: Required services or databases unavailable
- Solution: Verify service health; check network connectivity; use mocks if services are down

## Resources

### Testing Tools
- Industry-standard testing frameworks for your language/platform
- CI/CD integration guides and plugins
- Test automation best practices documentation

### Best Practices
- Maintain test isolation and independence
- Use meaningful test names and descriptions
- Keep tests fast and focused
- Implement proper setup and teardown
- Version control test artifacts
- Run tests in CI/CD pipelines

## Overview


This skill provides automated assistance for browser compatibility tester tasks.
This skill provides automated assistance for the described functionality.

## Examples

Example usage patterns will be demonstrated in context.

Overview

This skill automates cross-browser and cross-device compatibility testing to find rendering, behavior, and performance differences. It runs configured test suites across multiple browsers and captures detailed results, metrics, and failure traces. Reports summarize pass/fail counts, execution metrics, and actionable remediation suggestions.

How this skill works

The skill inspects a prepared test environment, validates prerequisites, and launches browser-focused test runners (headless or real browsers) using configured commands. It collects execution logs, screenshots, and performance metrics, then analyzes results to compute success rates, detect recurring failure patterns, and generate structured reports. Failures trigger guidance for common causes like timeouts, environment issues, or missing dependencies.

When to use it

  • Before a release that must support multiple browsers or devices
  • After introducing UI changes, responsive layouts, or JavaScript updates
  • When intermittently failing end-to-end tests need cross-browser diagnosis
  • To validate third-party integration behavior across browser vendors
  • As part of CI/CD to gate quality for supported platforms

Best practices

  • Keep test suites focused and fast; isolate flaky tests to reduce noise
  • Run tests in clean, reproducible environments with versioned browsers and drivers
  • Capture screenshots, DOM snapshots, and network logs on failures for root-cause analysis
  • Parallelize compatible tests but monitor resource usage to avoid exhaustion
  • Define clear thresholds for timeouts, performance regressions, and quality gates

Example use cases

  • Execute the full compatibility suite across Chrome, Firefox, Safari, and Edge before a production deploy
  • Run responsive layout checks on a matrix of mobile and tablet viewports after a CSS refactor
  • Validate third-party widget behavior across browsers after a vendor upgrade
  • Diagnose a failing test by replaying captured logs and screenshots to pinpoint rendering differences
  • Integrate into CI pipelines to block merges when cross-browser regressions are detected

FAQ

What prerequisites are required to run tests?

A configured test environment, installed browser drivers and frameworks, prepared test data, and network access for external services are required.

How are common failures handled?

The skill classifies failures (environment, timeout, dependency), suggests fixes like increasing timeouts or mocking services, and captures artifacts to aid debugging.