Building intent-driven UI testing with Amazon Nova Act

Epsilon's Agentic Platform team built a multi-tenant UI testing service on Amazon Nova Act and Amazon Bedrock AgentCore Browser Tool, layering natural-language, intent-based tests on top of its existing Playwright regression suite. The service runs each workflow's plain-English steps through Nova Act over a CDP WebSocket in managed, ephemeral browser sessions, capturing per-step screenshots and pass/fail results. Epsilon reports 4-6x faster test authoring (an 18-step workflow took 5-10 minutes versus 30-90 minutes for an equivalent 80-150-line Playwright script) and a 100 percent pass rate on saved trajectory replays.