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For C-level decision makers · managed AI Harness · EU data residency

Hire Chiefs of Staff.
As many as you need.

Each Brain on your roster is a personal Chief of Staff, run on a managed AI Harness and modeled on the playbooks of the world’s best. Voice-first: speak a voice note from anywhere, and they drive tasks to done, keep your knowledge documented, and build your software, so you concentrate on the work only you can do. Start with one, scale to hundreds.

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Concierge setup: we provision your Brains, seed your vault, wire your first workflows. You start with it working.

brainy-01
Chief of Staff · Ops
  • Due-outs tracked, nothing drops
  • Decisions prepared, batched for one word
Working
brainy-02
Chief of Staff · Knowledge
  • Your company wiki, updated as work happens
  • Sources filed, decisions traceable
Online
brainy-03
Chief of Staff · Engineering
  • Code shipped from your own repos
  • Source control wired in, PRs with receipts
Working
+ Forge another Brain from your snapshot · 60s

One Brain or hundreds: your roster scales with your ambition, not your headcount.

What is an AI harness?

The rig that turns AI into staff work.

Memory, guardrails, receipts and your knowledge base, wired around the model. You choose the model. The harness stays yours.

EU region · or your own infrastructure DPA available · your data stays
PrincipalYou
brainy-01
Chief of Staff · Operations: due-outs, follow-ups, decisions prepared
brainy-02
Chief of Staff · Knowledge: your company wiki, always current
brainy-03
Chief of Staff · Engineering: code shipped from your repos
+ forge another · 60s
Model-agnostic bus Claude GPT Gemini Mistral your internal LLM
The honest comparison

Why not just Claude or Codex?

Fair question. Under the hood, every Brain runs Claude Code — the best coding agent there is. But bare agents — Claude Code, Codex & co. — are generalists: a blank book, brilliant and empty, the same for every user. Prime Foundry shapes one into your individual Chief of Staff, recipes already written.

Bare agents: Claude Code, Codex & co.
Prime Foundry
Where it runs
Your laptop. Works while your terminal is open.
Managed servers, EU or your own infrastructure. Works 24/7 — also while you sleep.
How you drive it
A keyboard, in a terminal.
Voice-first: speak a voice note from your phone, wherever you are. Typing works too.
Who it is
A generalist. The same for every user in the world.
Your individual Chief of Staff: tuned to your business, your priorities, your way of deciding.
When you're wrong
Agreeable by default. Tuned to please you, it adopts your framing and confirms your plan.
Contradicts you, on purpose. Your own bias is the target: it argues the other side back at you before you commit — then you decide.
Day one
A blank page. You write every workflow yourself.
Arrives stocked: chief-of-staff playbooks, skills and guardrails pre-installed, concierge setup done for you.
Your knowledge
Lives in the session. Gone when it ends.
Filed into a versioned git wiki all your Brains share — nothing is lost, knowledge compounds.
Shipping software
Code on your machine. Deployment is your problem.
Apps deployed to your own app server, live at a real URL, from prototype to production.
When you're stuck
You and the documentation.
Your fractional CTO is included: 20 years of engineering, one message away.
The model
Claude.
Claude, GPT, Gemini or your own model. The harness stays yours.
“I never allow myself to have an opinion on anything that I don’t know the other side’s argument better than they do.”
Charlie Munger · the standard your Brain is held to

We say this with respect: we run Claude Code all day. Prime Foundry is what turns it into staff.

01 · Due-outs

Tasks, driven to done

Every request becomes a tracked due-out. Send it by voice or text from your phone, from anywhere — your Brains run 24/7 on always-on servers, report status, and never let a task stall in silence.

02 · Knowledge

Documented as it happens

Decisions, sources and notes land in one versioned git wiki that every Brain reads and keeps current — built on the LLM-Wiki pattern. Nothing is lost; knowledge compounds.

03 · Software

Built in your repos

Source control comes wired in. Brains ship real code with tests and receipts, then deploy it to your own app server — live at a real URL, from prototype to production.

Hendrik Kleinwächter HENDRIK KLEINWÄCHTER · FRACTIONAL CTO
Included with every harness

Your fractional CTO is included.

AI without judgment is a liability. That’s why every harness comes with a human: Hendrik Kleinwächter, 20 years of building software. Your architecture set up for you, hard questions answered within a business day, and the typical AI mistakes stopped before they reach your business.

20 years of engineering Answers within a business day EU or on-prem DPA available

See your first Brain forged, live.

Interested in a demo? Write me a quick email. I am Hendrik, founder and the first chief of staff every Brain learns from — you get me, not a form.

hendrik@hkleinwaechter.com LinkedIn

Answer within a business day