Nearby Friends
In my last post I wrote about the proximity service, the system behind "restaurants near me". https://writer.mrmehta.in/how-nearby-actually-works I finished that thinking I had location problems figu
Kartik Mehta
Latest articles
Passport Chips, Explained
The first time I held my phone against my passport and watched an app pull my own photo off the chip, I had two reactions. First: that's really cool. Second: wait, how did it do that? So I went diggin
agent-first is the de facto now
I just finished rebuilding our docs at docs.self.xyz, and the whole thing came from one assumption: every page now gets read twice. Once by a developer, and once by the agent sitting next to them. If
Watching the Black Box
The final part of a series on agent harnesses. We started with the model-plus-harness idea, then built subagents, gave them a safe place to work, and wired up tools, memory, and workflows. This last p
Hands, Memory, and a Job to Do
Part four of a series on agent harnesses. The earlier pieces covered the model-plus-harness idea, subagents, and sandboxes. This one is about the three things that turn a capable agent into one that e
Letting Agents Run, Safely
Part three of a series on agent harnesses. Part one introduced the model-plus-harness idea, and part two split work across subagents. This piece is about the layer where agents stop just talking and s
One Agent Is Not Always Enough
Part two of a series on agent harnesses. If you have not read part one, it introduces the idea that an agent is a model plus the harness around it. This piece builds on that, so a quick skim first wil