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# Kubernetes Is Not Your Sandbox


- **Date:** Friday, Sep 25, 2026
- **Time:** 16:10–16:40 (30 min)
- **Room:** Stage 1
- **Event:** World Congress 2026 North America

## Description

Teams are reaching for Kubernetes to run agent sandboxes, and it's the wrong tool. Kubernetes is built to keep things alive and hold them in a steady state. A sandbox is born, forked, and killed before any of that machinery catches up.

The mismatch compounds because the sandbox keeps gaining requirements without shedding any. In eighteen months it went from a fast code-snippet runner, to a stateful box for long-running agents, to ten thousand ephemeral environments that fork for RL rollouts and die in under a second. It has to be all of those at once, a contradiction set no orchestrator was designed to hold.

The cost shows up the moment you measure it. We ran the same 50-action bug-fix trajectory across five stacks and got a 12x spread: 12.9s on the fastest, 161.5s on the slowest. The gap isn't compute, it's lifecycle overhead per action. We name every stack and explain the mechanism behind each number.

## Speaker

### [Ivan Burazin](https://www.wearedevelopers.com/@ivan-burazin)

Ivan Burazin CEO and Co-Founder at Daytona


## Related talks at this congress

- [Run your agents in Kubernetes: Build once, deploy anywhere. But really?](https://www.wearedevelopers.com/events/world-congress-2026-north-america/sessions/1676-run-your-agents-in) — Michal Salanci
- [rm -rf: Horror Stories From Unsandboxed AI Agents (and How Docker Fixes This)](https://www.wearedevelopers.com/events/world-congress-2026-north-america/sessions/1718-rm-rf-horror-stories) — Rishab Kumar
- [Docker sandboxes: protect your secrets, tokens, and personal data from AI agent mistakes](https://www.wearedevelopers.com/events/world-congress-2026-north-america/sessions/1762-docker-sandboxes) — Kristiyan Velkov
- [SBX 101: Hands-on with Docker Sandboxes](https://www.wearedevelopers.com/events/world-congress-2026-north-america/sessions/1818-sbx-101-hands-on) — Dan Ndombe

## Watch remotely

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- All full videos, bookmarks, and playlists
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## Links

- [Get tickets](https://www.wearedevelopers.com/world-congress-north-america/tickets)