# Stefan Preu

> Stefan “Steve” Preu is an agentic systems architect building tools that help humans and AI agents work with durable context, including the open-source PM CLI.

Every page below is linked as markdown; the same pages answer `Accept: text/markdown` at their usual address. All of them in one file: https://preu.at/llms-full.txt. A read-only MCP server is at https://preu.at/mcp; how to connect: https://preu.at/agents.

Key facts (checked 2026-10-20):

- Name: Stefan Preu; goes by Steve (Steve Preu on GitHub, @StevePreu on X)
- Pronunciation: Preu is German, /pʁɔɪ̯/; or just say “proy”, rhymes with joy.
- Role: Agentic systems architect
- Based in: Austria
- Main project: PM CLI, open-source project management for people and coding agents (MIT, npm @unbrained/pm-cli); started February 2026, designer and only human maintainer
- Also built: agent-friendly CLIs for Home Assistant, Jellyfin, SearXNG and Monica, plus extensions around PM CLI
- Open to: engineering roles, consulting projects and collaborations; all equally welcome
- Contact: stefan@preu.at or https://preu.at/contact
- Handles: unbraind on GitHub, unbrained on npm; unbrained.dev is his site for services and client projects

Short answers:

- who is Stefan Preu? i’m an agentic systems architect based in austria. i build tools and systems that help humans and AI agents work with durable context; my main project is the open-source PM CLI.
- is Steve Preu the same person? yes. steve is short for stefan, and it’s the name on my GitHub profile and on X (@StevePreu). on GitHub my handle is unbraind, on npm unbrained.
- how do you pronounce Preu? Preu is german, /pʁɔɪ̯/, like “treu”. or just say “proy”, rhymes with joy.
- what does an agentic systems architect do? i design the systems around AI agents: what they know when a session starts, which tools they can use, where the walls are, and how anyone can tell the work is done. the models come from the labs; the system around them is my part.
- what is PM CLI? open-source, git-native project management for people and coding agents. goals, decisions, tasks and evidence live as plain files next to the code, so a fresh session can pick up the thread. i started it in february 2026 and maintain it; it’s MIT-licensed and on npm as @unbrained/pm-cli.
- what else has he built? agent-friendly command-line tools for Home Assistant, Jellyfin, SearXNG and Monica, plus extensions and companions around PM CLI. all of it is public on GitHub and npm.
- can i hire Stefan Preu? yes. i’m open to engineering roles, consulting projects and collaborations, all equally welcome. send a message through the form or email stefan@preu.at.
- how is preu.at related to unbrained.dev? both are mine. preu.at is about me and my work; unbrained.dev is for services and client projects.

## Pages

- [Home](https://preu.at/index.md): positioning, what i bring, how a PM CLI handoff works, selected work and approach
- [About](https://preu.at/about.md): Stefan “Steve” Preu is an agentic systems architect in Austria who created the open-source PM CLI. Key facts, how to hire him, and short answers.
- [Work](https://preu.at/work.md): Open-source work by Stefan Preu: PM CLI, agent-friendly CLIs for Home Assistant, Jellyfin, SearXNG and Monica, and PM CLI extensions, live from GitHub and npm.
- [PM CLI case study](https://preu.at/work/pm-cli.md): How Stefan Preu built PM CLI: his role, four design decisions and their trade-offs, a reproducible agent handoff, lessons learned and honest limits.
- [Contact](https://preu.at/contact.md): Get in touch with Stefan Preu about engineering roles, consulting projects or collaborations on agentic systems.
- [For agents](https://preu.at/agents.md): How AI agents read preu.at: every page as markdown, llms.txt, a read-only MCP server at preu.at/mcp, a JSON project feed and an OpenAPI description.

## Service CLIs

- [Home Assistant CLI](https://preu.at/work/home-assistant-cli.md): hassio is an open-source Home Assistant CLI built for AI agents: compact TOON output, a read-only mode, capability probes and countable, bounded results.
- [Jellyfin CLI](https://preu.at/work/jellyfin-cli.md): jf is an open-source Jellyfin CLI built for AI agents: TOON output, a read-only guard, exact OpenAPI operations, tool schemas and confirmed mutations.
- [SearXNG CLI](https://preu.at/work/searxng-cli.md): searxng is an open-source CLI for your own SearXNG instance, built for AI agents: TOON output, validated formats, cache-only runs and a command contract.
- [Monica CLI](https://preu.at/work/monica-cli.md): monica is an open-source CLI for the Monica personal CRM, built for AI agents: read-only by default, instance-aware tool exports and checked API calls.

## For agents

- [All pages in one file](https://preu.at/llms-full.txt): every markdown page above, joined
- [MCP server](https://preu.at/mcp): read-only, streamable HTTP, no sign-in: claude mcp add --transport http preu https://preu.at/mcp
- [MCP server card](https://preu.at/.well-known/mcp/server-card.json): where the MCP server is and what it offers
- [AI catalog](https://preu.at/.well-known/ai-catalog.json): the MCP server as an Agentic Resource Discovery entry
- [Project feed (JSON)](https://preu.at/api/projects): public GitHub and npm metadata for every listed project
- [OpenAPI description](https://preu.at/openapi.json): the project feed and the contact endpoint
- [API catalog](https://preu.at/.well-known/api-catalog): RFC 9727 linkset of the APIs above
- [PM CLI handoff demo script](https://preu.at/case-study/pm-handoff.sh): reproduces the case-study transcript in a throwaway repository

## PM CLI on the web

- [website and docs](https://pm-cli.unbrained.dev): guides, reference and every published package.
- [pm-web](https://pm-web.unbrained.dev): browse, search and manage pm projects in the browser.
- [pm-mcp](https://pm-mcp.unbrained.dev): connect agents and IDEs over remote MCP and OAuth.
- [pm-gpt](https://pm-gpt.unbrained.dev): work with pm projects in ChatGPT and Codex.
- [pm-search](https://pm-search.unbrained.dev): find decisions, tasks and fixes in public repositories’ pm items, with commit-pinned links.

## Elsewhere

- [LinkedIn: stefanpreu](https://www.linkedin.com/in/stefanpreu/)
- [GitHub: unbraind](https://github.com/unbraind)
- [npm: unbrained](https://www.npmjs.com/~unbrained)
- [X: @StevePreu](https://x.com/StevePreu)
- [Unbrained: unbrained.dev](https://unbrained.dev)
- [Tokscale: unbraind](https://tokscale.ai/u/unbraind)
- [Instagram: unbrained](https://www.instagram.com/unbrained/)
- [Spotify: 118688740](https://open.spotify.com/user/118688740)

## Optional

- [Privacy](https://preu.at/privacy)
- [Imprint (Impressum)](https://preu.at/imprint)
- [Sitemap](https://preu.at/sitemap.xml)