How I Use a SKILL.md File to Make Claude Code Run a Full QA Workflow Automatically

TL;DR SKILL.md gives Claude Code a persistent QA methodology: 5 workflow phases, folder structure, locator rules, and a capped fix loop Drop it in your project root, give Claude Code your codebase or test cases, it writes and saves an organized Playwright suite automatically Tests persist on disk and run free forever via Playwright's native runner The Problem Writing tests takes as long as writing the feature. Most devs either skip them or write shallow ones that break on the next refactor. The issue isn't Playwright — it's that there's no system. Every test session starts from scratch, and coverage is whatever you had time for. Asking Claude Code to "write some tests" helps, but without instructions it's inconsistent. It writes differently every time and has no idea how you want things organized. The fix is giving it a methodology to follow. What's a SKILL.md? A markdown file in your project root. Claude Code reads it at the start of every session as its operating instructions for tha