# E2E Testing & Debugging Guide

> **Recent Updates**: See [Sprint 1 Improvements](sprint1-improvements.md) for information about recent E2E test reliability and performance enhancements (February 2026).

### Getting Started with E2E Tests
- **Running Tests**: `npm run e2e`
- **All Browsers**: `npm run e2e:all`
- **Headed UI on headless Linux**: `npm run e2e:ui:headless-server` — see `docs/development/running-e2e.md` for details