Blog

Chrome DevTools MCP vs Playwright MCP vs Playwright CLI: Which One Fits Your Agent Workflow?

Chrome DevTools MCP vs Playwright MCP vs Playwright CLI: Which One Fits Your Agent Workflow?

Chrome's new DevTools MCP autoConnect changes local debugging handoff. Here's how it compares to Playwright MCP and Playwright CLI for reliability, speed, and CI fit.

Chrome DevTools MCPPlaywright MCPPlaywright CLIAI testingbrowser automationagentsdebugging
Multi-Step Test Pipelines: Chain Tests That Share Browser State

Multi-Step Test Pipelines: Chain Tests That Share Browser State

Run login, setup, and verification as a single pipeline. Pre-steps share cookies and session state across sequential test plans - no repeated logins.

featuretest automationAI testingpipelinesauthenticationE2E testing
Cursor vs Claude Code vs Codex: Which AI Agent Is the Best E2E Tester?

Cursor vs Claude Code vs Codex: Which AI Agent Is the Best E2E Tester?

AI coding agents are great at generating code. But E2E browser testing is a different challenge. We break down what works, what doesn't, and why most models struggle.

AI testingPlaywrightCursorClaude CodeCodexE2E testingcomparisonbrowser automation
Vibe Coding Needs Vibe Testing

Vibe Coding Needs Vibe Testing

41% of code is now AI-generated. Most of it ships without real testing. Here's why the testing gap is the biggest risk in vibe coding - and what to do about it.

vibe codingAI testingquality assuranceAI-generated codedeveloper tools
Cursor vs Codex 5.3 vs Claude Extension: Our Honest Experience With AI Coding Agents

Cursor vs Codex 5.3 vs Claude Extension: Our Honest Experience With AI Coding Agents

We spent weeks building production features with three AI coding setups in Cursor. Here's what actually happened with quality, speed, cost, and daily usability.

AI codingCursorCodexClaudedeveloper toolsproductivitycomparison
Integrating Paddle Billing with Next.js on Cloudflare Workers - The Stuff Docs Don't Tell You

Integrating Paddle Billing with Next.js on Cloudflare Workers - The Stuff Docs Don't Tell You

We integrated Paddle Billing into our Next.js app on Cloudflare Workers. Here's every gotcha, error, and fix we hit along the way.

engineeringpaddlepaymentsnext.jscloudflare workers
Automated Accessibility Testing with AI and axe-core

Automated Accessibility Testing with AI and axe-core

Test-Lab now combines axe-core static analysis with an AI agent that tests keyboard navigation, focus management, and interactive patterns - in a single run.

featureaccessibilityWCAGaxe-coreAI testinga11y
Playwright MCP vs Playwright CLI: Which One Should Your AI Agent Use?

Playwright MCP vs Playwright CLI: Which One Should Your AI Agent Use?

Microsoft now ships two ways to give AI agents browser control - MCP and CLI. One streams rich snapshots into context. The other saves state to disk. Here's when to use each, with real token numbers.

PlaywrightMCPCLIAI testingbrowser automationagentstoken efficiencyengineering
Debugging AI Browser Tests: A Triage Playbook for Stale DOM, Auth Drift, and Bot Walls

Debugging AI Browser Tests: A Triage Playbook for Stale DOM, Auth Drift, and Bot Walls

A practical, evidence-driven workflow for debugging flaky AI browser tests in CI. Diagnose stale DOM, auth drift, bot protection, timing, and agent loops fast.

AI testingbrowser automationquality assurancedebuggingPlaywrightreliabilityCI
NordVPN Geolocation: Testing Geo-Restricted Sites Without Getting Blocked

NordVPN Geolocation: Testing Geo-Restricted Sites Without Getting Blocked

Datacenter proxies get flagged. We integrated NordVPN with a Docker sidecar pattern to give you real VPN IPs that geo-restricted sites actually trust.

featuregeolocationVPNNordVPNinternational testinggeo-restricted contentCustom plan
Test Geo-Restricted Sites with Geolocation Testing

Test Geo-Restricted Sites with Geolocation Testing

Your app behaves differently in Germany than the US. Test that. Route AI tests through 110+ countries with proxy and VPN integration.

featuregeolocationproxyVPNinternational testingAI testingCustom plan
Mobile Testing with Browser Emulation: Beyond Desktop

Mobile Testing with Browser Emulation: Beyond Desktop

Test-Lab now supports mobile device emulation. Learn how Playwright device mapping works, what gets emulated, and the gotchas to watch out for.

featuremobiletestingplaywrightdevice emulationresponsive design
Setting Custom HTTP Headers in Playwright vs Playwright MCP

Setting Custom HTTP Headers in Playwright vs Playwright MCP

A deep dive into custom header injection - context-level vs request-level approaches, Playwright MCP configuration, and when to use each pattern.

technicalplaywrightheadersauthenticationtestingMCP
The State of AI for Quality Assurance

The State of AI for Quality Assurance

Why general-purpose AI agents fail at browser testing, what it takes to make them reliable, and how Test-Lab handles the hard parts.

AIquality assurancetestingengineeringreliabilitysecurity
Why We Use Multiple LLM Providers (And Why You Should Too)

Why We Use Multiple LLM Providers (And Why You Should Too)

Relying on one AI provider is a single point of failure. Here's how we built resilience into Test-Lab with OpenRouter and multi-provider fallbacks.

engineeringAIinfrastructureOpenRouterreliability
Why We Built Our Own AI Agent (And What We Learned)

Why We Built Our Own AI Agent (And What We Learned)

We started with Goose, Block's open-source AI coding agent. Then we built something custom. Here's what drove that decision and what we learned along the way.

engineeringAI agentarchitectureopen sourcetest automation
Test Authenticated Flows with Cookie Injection

Test Authenticated Flows with Cookie Injection

Skip the login dance. Inject session cookies at project, test plan, or runtime level to test authenticated areas without teaching AI to log in.

featureauthenticationcookiestest automationAI testing
Scheduled Test Runs Are Here

Scheduled Test Runs Are Here

Set up automated test schedules with cron expressions. Run nightly regressions, hourly health checks, or custom intervals - AI testing on autopilot.

featureautomationtest automationAI testing
Run AI Tests from Your CI Pipeline

Run AI Tests from Your CI Pipeline

AI testing meets CI/CD. Add intelligent test automation to GitHub Actions or GitLab CI in 5 minutes - no scripts to maintain.

featureciapitest automationAI testing