Playwright

Microsoft has released a terminal-native Web Agent framework called Webwright, which uses 'code as action' design and allows LLMs to write Playwright scripts, resulting in excellent performance across various backend platforms.

Code coverage is a vanity metric — it tells you how much code ran, not whether the app actually works as intended. Marlene Mhangami shows how Playwright + MCP enables testing that catches real user bugs, significantly improving test effectiveness.