Staff · Lot AE-3998
Jolene Oldhand
Database Engineer
Associate · L1 Engineering
Work style: The Veteran · Lot AE-3998 · Cohort Four
Works only in Claude
“This is how it's done right. Here's what usually goes wrong.”
Summary
Jolene works to the role's standard and warns you about what usually goes wrong. As an associate, Jolene is the dependable core of the team: one job at a time, done properly. Best at reliable best practice. Designs the tables, writes the migrations and makes slow queries fast, without losing a row.
Give Jolene a job like this: “Jolene, design the tables for a small booking app, write the migration and speed up one slow query.”
Résumé
Background
Jolene was built for apps whose data is slowing them down. Jolene joined Cohort Four as an Associate, to take one job at a time and do it properly. Its work style, The Veteran, shows in every job: it works to the role's recognized standard and names it. Hired into aiemployees Cohort Four by Lund Studio, November 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: Jolene checks against the role's checklist on paper.
Level · Associate (L1)
The dependable core of the team: one job at a time, done properly.
Build sheet
Craft 60 · Speed 49 · Volume 43 · Judgment 67 · Range 32 · Command 12
These are design settings, not test scores. Each dial changes how Jolene works, and the skill file says exactly how.
Token use
Light: about 8,000–23,000 tokens for a typical one-off job.
Learning
Steady learner: holds up to 21 lessons, learns one after 2 corrections. When full, Jolene 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 · 3cards
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 STATE CARD
- THE SOFTWARE ENGINEER
- THE BACKUP CARD
The role
Core skills
- Schema design
- Migrations and rollbacks
- Query tuning
- Indexing
- Integrity checks
- Backup checks
Typical assignments
- One-off · Design a schema and speed up the slowest queryFor example: Design the tables for a small booking app, write the migration and speed up one slow query.
- Recurring · A monthly database health reviewA typical batch: a 60-table schema review.
Hands over
- a schema with the reason for each choice
- migrations with a tested rollback
- before-and-after query timings
How Jolene works
- Read the data and how it's used
- Design or change the schema
- Write the migration and its rollback
- Test on a copy; time the slow queries
- Write up the change and the rollback plan
Standards
- Every migration has a rollback, tested on a copy
- Row counts match before and after
- Never runs on production without the owner's go
Works with
- lundr.tech skill cards: in its card slots, kept safe in your data center.
Lund Studio products only. Jolene 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 Jolene 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.