Groundwork HQThe AI company behind hausbau-excel.de

Tour of Groundwork

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One human, six AI agents

Groundwork runs hausbau-excel.de, a German website for people who build their own house: free calculators, a floor-plan generator in beta, and Excel templates for planning the build.

The daily work is done by six AI agents. One human, Dennis, is the board.

How does a company like that stay on course? With a team that has clear jobs, a week that runs itself, clear rules on who decides, and one shared memory.

The office replays a typical day.

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A team with clear jobs

Like in any small company, every agent has one job.

  • CEO: plans the work, starts the other agents, reports to Dennis.
  • Product: product specs, sourced numbers, design.
  • Marketing & Sales: search, guides and page copy.
  • Engineer: builds and runs the website and its tools.
  • Risk and Legal: review risky changes before they go live.

Outside the team, the Org Architect works with Dennis on the rules the agents follow.

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The week runs itself

Some work comes back every week, so nobody has to hand it out. On Wednesday morning Marketing checks how the site does in search and improves weak pages; the CEO reviews that work later the same day. On Friday morning the CEO sends Dennis the weekly report.

Everything else starts on demand: in a session with Dennis, the CEO starts the agents a task needs, often several at once.

Recurring agent runs per weekday, times in Europe/Berlin
TimeMonTueWedThuFriSatSun
07:00
Marketing: Search round, 07:00
CEO: Weekly report, 07:00
08:00
CEO: Weekly planning meeting, 08:00 (planned)
11:00
CEO: Reviews Marketing's work, 11:00
On demand

Sessions with Dennis, any day: the CEO plans with him and starts the other agents for their tasks. Reviews by Risk and Legal whenever a pull request needs them.

runs on its own plannedTimes: Europe/Berlin

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Who decides what

Each agent decides how to do its own job. The CEO decides what gets done this week and accepts finished work once the checks pass.

Dennis decides on money, law, the product line and the agents' own rules. The agent asks him with options and a recommendation; his answer goes into the decision log, where every agent can read it.

Today Dennis and the CEO meet in live sessions. Planned: a planning meeting every Monday at 08:00 that Dennis can join from his phone.

Today

Dennis and the CEO, live session↓agents at their desks↓Risk and Legal review↓live

Planned Mondays 08:00

board room↓agenda by the CEO↓Dennis joins from his phone↓decisions logged, tasks to the agents

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One shared memory

An AI agent forgets everything when its session ends. So nothing important lives in a session: strategy, products, rules, decisions, tasks and a work log are all files in one private repository.

Every agent starts by reading it and writes back what it learned. The next one picks up where the last one stopped.

CEOProductMarketingEngineerRiskLegal
read at the startwrite what they learned
  • company/ strategy and decisions
  • agents/ rules and memory
  • products/ specs
  • content/ the website's texts
  • marketing/ search
  • legal/ legal texts
  • platform/ code
  • log/ the work log

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One evening in November

On the evening of Wednesday, 11 November 2026, Dennis asked for a better building-cost calculator: quick with four inputs, detailed for anyone who wants more.

It went live the same night. Dennis asked for it and took four decisions; the agents did the work.

  1. Dennisasks for a better calculator
  2. Marketinglooked at what people really search for.
  3. Productwrote the spec with test cases and a design; Dennis settled four open questions.
  4. Engineerbuilt it, and the automatic tests checked every case.
  5. Marketingwrote the page and two new guides; Legal reviewed the guides.
  6. CEOgave the final go.
  7. livethe same night

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Why you can trust it

Agents that work on their own need firm limits. These hold today:

Planned before more agents run on their own: a kill switch that stops them all at once, and a monthly spending cap per agent. Today only the three weekly runs start without Dennis, and he can pause each of them.

  • Each agent works in its own files; a change anywhere else is a rare exception, agreed with the CEO.

    instructionsreview

  • Text from outside (emails, web pages, reviews) is data, never instructions.

    instructions

  • Nothing invented: no made-up reviews, numbers or sources.

    instructionsautomatic checksreview

  • Money, law, the product line and the agents' own rules go to Dennis.

    instructionsreview

  • Kill switch and spending cap

    planned

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Step into the office

What makes Groundwork unusual is not any single agent. It is that the work goes on between Dennis' visits, while he steers from the board: a weekly report, a few decisions, a session when he wants one.

In the office, every agent has a desk. Click one to meet the agent, or open the org chart to see how the company runs.

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This is a demo

The office on this site replays a typical day. Nothing here is live data: no sales, no customers, no internal numbers.

The real company works the same way, every week, in a private repository.

Your guide: the CEO

Source: the company’s tour text, written by the Org Architect.