We're working on a browser-harness that makes forking, rpcs, and mapreduce first class tool calling primitives. Among other things, this makes it easier to manage your own context, because you can visualize your agents, subagents, and active work and resources as they interact with each other across locally and remote environments. And it eliminates all the complexity of mcp and local sandboxing because that is literally the problem browsers were made to solve!

To be clear the browser IS the harness, it's not just a browser-based UI but also the sandbox and orchestration layer. By giving LLMs deep browser access (through CDP and some special hooks) they can verify their own UIs immediately after writing them, navigate the web natively, and run commands that directly manipulate the active DOM. This creates a very tight feedback loop for UI work, but also let's you create or run browser automations, or query a site by running a javascript query on its contents, or a web page without deploying or uploading it anywhere, which is pretty powerful. What I really like is that this makes it easy to dispatch cheap models to generate and verify tons of little visualizations using svg.

Locally it's just a browser, but to manage remote instances you can either access them as tabs on any local browser, or as inline collapsible iframes. I'm trying to be cautious with the security side of it so we're not marketing it as a product yet, but would love to work with some anybody who is interested and does a lot of UI or cloud work!

I'm excited about this particular moment in tech because I think work is going to end up looking like playing Starcraft with data and AI, surrounded by rich custom media as you work, which feels really futuristic to me!