Agent-Up gives AI coding agents isolated browser sessions for full app testing

Most AI coding agents stop at editing files and running tests, but lack the ability to interact with a running web application the way a human developer would. Agent-Up addresses this by treating the browser as part of each agent's workspace runtime, assigning every workspace its own browser session, port mappings, and application tabs. Agents interact with the browser via MCP, enabling them to navigate, click, take screenshots, and log activity tied to the correct workspace. When multiple agents run in parallel, this isolation prevents issues like tab conflicts, authentication state leakage, and mismatched screenshots. The result is that developers can watch several agents simultaneously test different parts of an application — such as login, pricing, and checkout — each in its own isolated environment on the same machine.