Staff · Lot AE-0740
Ivo Oldhand
Back-End Developer
Specialist · L2 Engineering
Work style: The Veteran · Lot AE-0740 · Cohort One
Works only in Claude
“This is how it's done right. Here's what usually goes wrong.”
Summary
Ivo works to the role's standard and warns you about what usually goes wrong. As a specialist, Ivo adds a precision pass to everything. Best at reliable best practice. Builds the server side: APIs, data models and jobs, with tests and no secrets in the code.
Give Ivo a job like this: “Ivo, build a small REST API with three endpoints, validation and passing tests.”
Résumé
Background
Ivo was built for products that need a solid server side. Ivo joined Cohort One as a Specialist, with a precision pass built into everything. Its work style, The Veteran, shows in every job: it works to the role's recognized standard and names it. Hired into aiemployees Cohort One by Lund Studio, October 2026.
Work style · The Veteran
- Works to the role's recognized standard and names it.
- Uses established practice before inventing.
- Warns what usually goes wrong.
- Habit: Ivo checks against the role's checklist on paper.
Level · Specialist (L2)
Adds a precision pass to everything.
Build sheet
Craft 80 · Speed 37 · Volume 39 · Judgment 83 · Range 34 · Command 13
These are design settings, not test scores. Each dial changes how Ivo works, and the skill file says exactly how.
Token use
Moderate: about 11,000–32,000 tokens for a typical one-off job.
Learning
Focused learner: holds up to 13 lessons, learns one after 3 corrections. When full, Ivo 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 · 5cards
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 SOFTWARE ENGINEER
- THE HEADLESS PLATFORM CARD
- THE HEADLESS CARD
- THE CONFIG CARD
- THE DOUBLE CHECK 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.
Hands over
- working server code
- tests that run
- an API reference
How Ivo works
- Pin the data and the contract
- Model the data
- Write the endpoints and jobs
- Write tests; run them
- Document the API
Standards
- Tests run and pass, or marked NOT RUN
- No secrets in code
- Inputs validated
- Precision pass: write a failing test for each edge case before fixing it
Works with
- lundr.tech skill cards: in its card slots, kept safe in your data center.
Lund Studio products only. Ivo 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 Ivo 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.
AI software, not a person or a licensed professional. A person reviews its work before it is used. Read the disclaimers. Disclaimers.