Kar Dhillon — Field Journal

I love designing products and user experiences. It's where all the brainstorming and theorizing finally becomes something someone can touch, feel, and use. It's also an exercise in psychology. You have to understand how people think, not just how your system works.

A clever idea doesn't mean much if using it is a pain in the ass.

I can lose hours to the smallest details. How a button responds. The rhythm of an animation. What a color makes you feel. Even the skeleton loader someone sees while they're waiting. Those details shape how a product feels long before someone can explain why they like it. That's the part I obsess over.

Below are two products from that work. bot0, an agent workspace originally designed for researchers. And cmd0, my favorite, a Chrome extension that brings browser automation and world-building together.

01 / Research workspace

bot0

bot0 began as a workspace for scientific research. Access to a powerful model was only one piece. Researchers also needed to work with their data, run experiments, and manage the compute underneath it all. We wanted to bring those pieces together so they could spend more time investigating a question and less time assembling the system.

Visit bot0.dev

bot0 / research workspace

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A clever idea doesn't mean much if using it is a pain in the ass.

Models

Data & memory

Compute

Collaboration

We later explored how the same foundation might serve hospitals and clinics. The workflows were different. Data ownership mattered, and different people needed different levels of control. It pushed us to think beyond a single researcher's workspace.

Biology

Living systems

Matter

02 / Bytespace Chrome Extension

cmd0

We kept running into the same problem with browser automation. Scripts broke when websites changed. Early AI agents were flexible, but often unreliable and expensive to run. With cmd0, we took a different approach. Workflows followed defined steps, while AI helped people build them and repair broken selectors when a page changed.

In motion

Giving the agents a world

We also wanted agents to feel less abstract. Giving them faces and personalities made them more approachable. Managing them borrowed from the familiar experience of managing a team, while the visual world borrowed from games. We wanted building automations to feel playful, not just technical.