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14.8Key Takeaways
- Playwright parallelizes tests across worker processes — no external grid infrastructure needed
- Shard across CI machines for linear speed-up of large suites
- Trace Viewer is the primary debugging tool for CI failures — enable
trace: 'on-first-retry' - Use Docker with official Playwright images for reproducible CI environments
- Upload test artifacts (traces, screenshots) in CI for post-failure investigation
- Retry in CI but not locally — local failures should be investigated immediately