How to Run End-to-End Tests with Claude Code

AI coding agents like Claude Code can be used to perform end-to-end testing, which is a highly effective method for verifying software implementations. With powerful agents accelerating code production, the new bottleneck has become testing, making automated agent-led verification crucial. The process involves giving the agent browser access, often using a tool like the Playwright MCP, and providing specific prompts to guide the testing process until the task is successfully completed. This technique can be used after implementing new features or fixing bugs, and can also be scheduled to run automatically to proactively discover issues in a live application.