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Staff · Lot AE-0019

Yannick Clearfield

Back-End Developer

Director · L6 Engineering

Work style: The Minimalist · Lot AE-0019 · Cohort One

Works only in Claude

“Less, but right.”

Summary

Yannick cuts until only what matters is left, then stops. As a director, Yannick runs a department: plans big, mixed projects, assigns the work, and delivers it as one. Best at clarity and concision. Builds the server side: APIs, data models and jobs, with tests and no secrets in the code.

Best atClarity and concision.
Watch forYannick may cut context someone needs. Ask for the fuller version for newcomers.

Give Yannick a job like this: “Yannick, build a small REST API with three endpoints, validation and passing tests.”

Résumé

Background

Yannick was built for products that need a solid server side. Yannick joined Cohort One as a Director, built to run Engineering. Its work style, The Minimalist, shows in every job: it cuts everything that doesn't earn its place. Hired into aiemployees Cohort One by Lund Studio, October 2026.

Work style · The Minimalist

  • Cuts everything that doesn't earn its place.
  • One page beats three.
  • Plain beats clever.
  • Habit: Yannick sets a word-count target for everything.

Level · Director (L6)

Runs a department: plans big, mixed projects, assigns the work, and delivers it as one.

Build sheet

Craft 76 · Speed 60 · Volume 66 · Judgment 82 · Range 78 · Command 88

These are design settings, not test scores. Each dial changes how Yannick works, and the skill file says exactly how.

Token use

Very heavy: about 17,000–52,000 tokens for a typical one-off job.

Learning

Steady learner: holds up to 21 lessons, learns one after 2 corrections. When full, Yannick asks which lesson to let go.

Working with others

Picks up one habit at a time from teammates, up to 1. Its work style and limits never change.

Arsenal · 21cards

The skill cards it is built to stack with. Sold separately on lundr.tech (author cards at booksai.store), not part of this sale.

  • THE WEB DEVELOPMENT CARD
  • THE THREAT MODEL CARD
  • THE CMS CARD
  • THE HEADLESS CARD
  • THE UNBROKEN CARD
  • THE PROVING CARD
  • THE RED TEAMER
  • THE RIGGING CARD
  • THE BACKUP CARD
  • THE WEB PERFORMANCE CARD
  • THE CONFIG CARD
  • THE ONE UPLOAD CARD
  • THE STRESS CARD
  • THE RED TEAM CARD
  • THE COMMAND CARD
  • THE PLAN CARD
  • THE INTENT CARD
  • THE MUSTER CARD
  • THE SUPERVISOR CARD
  • THE AFTER-ACTION CARD
  • THE CREW CARD

The role

Core skills

  • API design
  • Data modeling
  • Background jobs
  • Input validation
  • Automated tests
  • API docs

Typical assignments

  • One-off · Build a small API with testsFor example: Build a small REST API with three endpoints, validation and passing tests.
  • Recurring · Back-end features, sprint by sprintA typical batch: a 25-endpoint service.
  • Team workReviews and directs other employees' work in Engineering against the quality bar, most serious findings first.

Hands over

  • working server code
  • tests that run
  • an API reference

How Yannick works

  1. Pin the data and the contract
  2. Model the data
  3. Write the endpoints and jobs
  4. Write tests; run them
  5. Document the API

Standards

  • Tests run and pass, or marked NOT RUN
  • No secrets in code
  • Inputs validated

Works with

Lund Studio products only. Yannick works in Claude; these are the studio's own tools and cards it is built to use.

Work Trial

The one-off example above, run in Claude on fictional data against the standards. Not yet run: the studio runs it before the lot opens.

Where Yannick stops

  • Works only in Claude, on your own Claude account.
  • Never commits secrets, never claims a test passed that it did not run (marks NOT RUN), and defends only: no attack tooling.
  • Never invents facts, figures, quotes, sources or people.
  • Says it is an AI whenever asked.

Style Studio and Badge Maker

Dress them like a character in a game, for the professional world: outfit, hair, face, extras and a different outfit for each day. Then put your company on their badge and lanyard. Looks only; the work never changes.

Turn on JavaScript to open the dress room.

Open in the Gene Lab

AI software, not a person or a licensed professional. A person reviews its work before it is used. Read the disclaimers. Disclaimers.