Interactive testing of the running montty app via its debug HTTP server. Use this skill whenever you need to verify app behavior yourself -- after implementing a feature, fixing a bug, or when the user asks you to "try it", "test it", "check if it works", "run the app and see", or "exercise it". Also use when debugging session persistence, tab state, split layouts, or any visual/behavioral issue that can't be verified by unit tests alone.
2026-03-22