How to Set Up Replay MCP with Codex in Under 10 Minutes
Blog post from Replay
Codex, a tool that runs autonomously in your terminal, is enhanced by Replay, which provides a comprehensive browser recording to address complex bugs like race conditions and flaky tests that lack sufficient stack trace information. To utilize Replay effectively, users need Node.js, Codex, and a free Replay account, with the setup process involving the installation of the Replay CLI and configuration of the Codex MCP connection for debugging. Replay offers a demo recording for practice, and once integrated with Codex, it enables the inspection of DOM states, network timings, and React component trees during code execution. For a seamless experience, users should ensure proper installation of Replay MCP agent skills and configure Codex to connect to Replay's universal endpoint, allowing for effective mid-session recording debugging. Additional features, such as Playwright integration and tools for Redux or TanStack Query, further enhance the debugging process by providing detailed runtime analysis and action history insights.