CODING JAG - Issue 238

Welcome to the 238th edition of Coding Jag brought to you by LambdaTest!👐

High test coverage might look impressive—but does it actually mean your tests are effective? . In this edition, Rafael Miguel breaks down how over-reliance on code coverage can lead teams astray—thanks to Goodhart’s Law and shallow test practices. Instead, he advocates for a shift toward outcome-driven quality metrics that truly reflect software health.

But that’s just the beginning. You’ll get expert insights into Cypress optimization on CI, best practices for accessible automation at Slack, and why Docker Model Runner could be the next big thing in local LLM workflows. We also explore Agile maturity assessments, agent-mode vs. edit-mode in GitHub Copilot, and cutting-edge AI agents in the enterprise. Round it out with 2025’s top integration/database tools, a new Playwright MCP server from Microsoft, and a live event on real-world Playwright testing strategies. 💡📊🚀

News

Why MCP Won

...10 min readChrome-Extensionlatent.space

Why did MCP suddenly dominate the AI world? 🤯 This blog by Latent Space unpacks how a workshop at the AI Engineer Summit reignited interest, pushing MCP past other standards. From its “AI-native” roots to Anthropic’s backing, discover why MCP is now the go-to open standard for agents. 🔍

Microsoft Drops Official Playwright MCP for LLM Browser Automation

...05 min readChrome-Extensiongithub.com

Microsoft just launched an official Playwright MCP server—big news for agentic AI! 🧠 LLMs can now control browsers using structured accessibility trees instead of vision models. It’s faster, more reliable, and GitHub-ready. A huge leap for deterministic browser automation!

Run Changed Cypress Specs On CI First

...05 min readChrome-Extensionglebbahmutov.com

Tired of waiting on CI for unchanged Cypress specs? Dr. Gleb Bahmutov shares a clever Cypress tip—run recently changed specs first on CI for faster feedback! 🧪 Use find-cypress-specs, add cypress-fail-fast to stop early on failure, and speed things up even more with cypress-split. Smarter CI runs ahead! ⚡

AI

Autonomous AI Agents: The New Workforce Partners You Can't Afford To Ignore

...05 min readChrome-Extensionblog.kore.ai

Curious how AI is evolving beyond just chatbots? 🤖 Akhil Ganji explores how autonomous AI agents are redefining the workplace 🤩 From Smart Enterprise Search to seamless cross-department workflows, these AI partners boost efficiency without replacing humans. The future of work? Human-AI collaboration at scale.

Mastering GitHub Copilot: When to Use AI Agent Mode

...08 min readChrome-Extensiongithub.blog

🤔 Wondering when to use GitHub Copilot's agent mode vs. Copilot Edits? Andrea Griffiths breaks it down! From quick bug fixes to complex, multi-file refactors, she shows how agent mode becomes your coding co-pilot for larger tasks—while Copilot Edits shines for pinpoint changes. Master the difference! 🚀

Automation

Playwright Test Automation: POM, BDD & DDT Architectures

...05 min readChrome-Extensionmedium.com

🎭Worried about how to structure your Playwright tests efficiently? Senanur KORKMAZ explores POM, BDD & DDT architectures with clear examples and a handy GitHub repo! From reusable login classes to Gherkin steps, she shows how each approach works in real-world projects. 🚀

Keeping Tests Valuable: Are Code Coverage Metrics Trustworthy?

...05 min readChrome-Extensionsubstack.com

📊 Is code coverage really a sign of quality? Rafael Miguel challenges the obsession with metrics, warning against using coverage as a release gate. He shares real-world examples, dives into Goodhart’s Law, and makes a strong case for meaningful, outcome-driven testing! 💡

Are You Really Agile? A Practical Guide for QA Teams

...11 min readChrome-Extensionpractitest.com

📘 Is Your QA Team Truly Agile? 🤔 PractiTest's latest eBook is a must-read for QA leaders looking to level up their Agile game. ✅ Take the free self-assessment to uncover process gaps and get practical tips for every phase—from Shift-Left Testing 🛠️ to continuous feedback 🔁. 📥 Download your copy now and start your transformation!

Automated Accessibility Testing at Slack

...05 min readChrome-Extensionslack.engineering

♿How do you scale accessibility testing in a fast-moving product like Slack? Natalie Stormann, Software Engineer at Slack, shares their journey integrating automated accessibility checks into their existing Playwright framework. From customizing Axe to navigating Jest limitations, this deep dive shows how they balanced developer ease, test accuracy, and accessibility compliance—all while maintaining performance and avoiding false positives.

Improving Hugo Stability and Addressing on Call Challenges Through Automation

...08 min readChrome-Extensionengineering.grab.com

Juggling 4,000+ data pipelines without constant fire drills? 🔥 Shuguang Xiang & team at Grab made it happen with a powerful automation framework! ⚙️📊 From smart signals to RCA tables and auto-resolutions, Hugo now runs smoother, the on-call load is down, and data stays healthy!

Tools

10 Code Analysis Tools: Paid + Open Source

...11 min readChrome-Extensionswimm.io

🚀 Looking for the best code analysis tools in 2025? The Swimm Team has curated a detailed list of 10 top code analysis tools—both paid and open-source. From SonarQube to ESLint and more, they highlight features like CI/CD integration, IDE support & security checks. Omer Rosenbaum adds expert tips on real-time feedback & hybrid analysis.

29 Top Mobile App Development Trends In 2025

...05 min readChrome-Extensionlambdatest.com

📱What’s shaping mobile apps in 2025? Nazneen Ahmad curated some of the best 29 exciting mobile app development trends shaping 2025, from 5G and foldable to AI, AR/VR, and IoT. She highlights the rising demand for cross-platform apps, mobile wallets, and wearable integration—backed by real-world stats and insights! 💡📊

Others

Podcast: Quality First: Implementing Shift-Left Testing for Future-Ready Products

...31 minChrome-Extensionlambdatest.com

🎙️ In this podcast, Mudit Singh hosts Srinivasan Santhanam, Senior Principal Technologist at Singapore Airlines. Srinivasan shares insights on AI-first development, shift-left testing, and accelerating software quality at scale. They discuss how AI is reshaping the ideation, design, development, and testing phases of the SDLC—highlighting real-world strategies to integrate end-to-end automation and mono-repo testing for future-ready products. 🎧 Listen now!

Video: Docker Model Runner, Will It Be an Ollama Killer?

...09 minChrome-Extensionyoutube.com

📺 In this video by Execute Automation, you’ll explore how Docker Model Runner makes running Large Language Models (LLMs) locally faster and easier—just like Ollama, but without adding another tool to your machine. Perfect for QA engineers, testers, and developers interested in AI-powered test automation and streamlined workflows, this walkthrough shows how Docker Model Hub can simplify local model deployment. 💻

Events

Event: TestarsQuarter - Register Now!

...05 minChrome-Extensionlinkedin.com

Join us for an exciting Live online event on Friday, April 18th, 2025, at 8:00 PM WAT, hosted by TestarsQuarter, featuring Kailash Pathak, QA Engineer at 3Pillar. 🗓️ On April 11th, explore Exploratory Testing, Functional Testing, and Regression Testing—essential practices for quality at speed. 🛠️ Then, on April 18th, dive deep into Playwright for Test Automation, covering powerful features, real-world use cases, and strategies to level up your automation game. Engage in live discussions, connect with the community, and walk away with practical insights you can apply right away. 🎤⚙️ 👉 Stay tuned and register now to unlock more upcoming sessions like these! Let’s keep learning together. 🔥