AnEntrypoint/agentgui — reverse-engineered prompt

Build me a local app called AgentGUI that gives me one clean browser based workspace for using multiple AI coding assistants at the same time. I want to be able to connect things like Claude Code, Gemini CLI, OpenCode, and similar local agents, send the same prompt to several of them, and compare their answers side by side while they stream in live.

Please make it feel like a real chat tool, not a raw terminal. I want saved conversations, session history I can reopen later, and the app should remember file changes and tool activity so I can resume work after closing it. It should also support basic file browsing and editing, drag and drop uploads, and a simple tools screen where I can see available agents and install or update supported ones from the UI.

If possible, add voice input and read aloud responses without needing API keys. Multiple browser windows should stay in sync in real time. Keep setup simple so I can run it locally and open it in my browser. Look up current docs online if you need to.