How I Migrated 90 Cypress Tests to Playwright With Claude Code in 4 Days
TL;DR I moved a 90-spec Cypress suite to Playwright in 4 working days using Claude Code. The trick wasn't "ask the AI to convert everything." It was: hand-translate one spec, extract the pattern into a written rulebook, then let the agent fan out across the other 89 while a screenshot-diff gate caught the silent behaviour drift. Here's the workflow, the two traps that cost me a day, and what I'd…
The problem faced was the migration of 90 Cypress test cases to Playwright within a short timeframe. The Cypress suite, written over three years by six developers, ran for 38 minutes on CI, experienced frequent flakiness, and relied on custom helpers which were no longer clearly understood. The goal was to move to Playwright for its multi-tab support, parallelism, and single runner for three target browsers.
The author, using Claude Code, estimated the migration would take two to three sprints, but decided to undertake it independently in four days.
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