# How Pieter Levels actually uses coding agents

Photo AI, Nomads.com

**If you take one thing:** `tm`, a tmux session per site. A Claude-written script that drops him into a per-project tmux session with Claude Code, straight on the production server.

- **Agent:** Claude Code (cli) ([source, 2026-08-30](https://x.com/levelsio/status/2094113698453360663))
- **Model:** Claude Opus 5.5 ([source, 2026-10-10](https://x.com/levelsio/status/2108957488410161442))
- **Model:** Claude Fable 5.1 ([source, 2026-10-02](https://x.com/levelsio/status/2106150888289009666))
- **Review:** Step by step, keeps the agent on a short leash ([source, 2026-08-05](https://x.com/levelsio/status/2084997902632390981))
- **Harness:** Termius (phone or laptop) into Hetzner VPSes, one tmux session per site, Claude Code on the server ([source, 2026-08-24](https://x.com/levelsio/status/2091987033367724309))

## In their words

> I made https://infiniteslop.ai yesterday completely on my phone with @TermiusHQ on my @Hetzner_Online VPS with @claudeai Code in the sauna

> only possible because modern AI like  Opus 5.5 is good enough to figure that out

> giving up I did a last try with Fable 5.1 on high effort and it after awhile it did figure out the issue!

> The only way for me to AI code is just step by step, feature by feature, object by object, and control it or it goes mental

> Every tmux session has Claude Code open


Archetype (our label): Vibe Maximalist. Newest source: 2026-10-10.
Card: https://www.prehistoriq.com/stacks/levelsio/ · Data: https://github.com/prehistoriq/stacks/blob/main/data/stacks/levelsio.json