← kwindla hultman kramer

I'm obsessed right now with figuring out the right patterns for LLM subagents

May 15, 2026

I'm obsessed right now with figuring out the right patterns for LLM subagents.

I think that all software we write is going to have a lot of inference loops running all the time!

A big driver for this is that human-in-the-loop processes must be fast and non-blocking. (Think about voice interfaces, for example.) These human-in-the-loop LLM ... um, loops ... also need to start, stop, steer, and share context with longer running tasks that require external resources, need to use bigger/slower models, etc.

We've been hacking on a bunch of subagent abstraction experiments in Pipecat.

One thing we need is good ways to run subagents both locally and remotely. Enter @vercel sandboxes!

Gradient Bang is our big, open source, multi-player LLM game. It's a canvas for experimenting with subagents, very long contexts over many sessions, dynamic user interfaces, and voice.

@jonptaylor just added "bring your own subagents" support to Gradient Bang, built on Vercel sandboxes.

Here's his video walk-through.

Gradient Bang bring-your-own-subagents is live on Product Hunt today. Go there to click through and play the game.

[1]

  1. https://www.producthunt.com/products/gradient-bang