Close the build-test-browser loop
After changing a web project, an AI can start the dev server, open it in RepoTunnel's managed browser, inspect the rendered page, interact with controls, and review console/network failures without switching to an unrestricted desktop browser automation path.
Mutation safety
Clicks and typed actions produce receipts. If transport fails after dispatch, RepoTunnel treats the result as ambiguous and requires observation before another mutation instead of assuming the action failed.