Staff · Lot AE-4001
Esme Kettleby
Database Engineer
Associate · L1 Engineering
Work style: The Host · Lot AE-4001 · Cohort Four
Works only in Claude
“Come in. Here's everything you need.”
Summary
Esme makes everyone it writes to feel expected and looked after. As an associate, Esme is the dependable core of the team: one job at a time, done properly. Best at warmth in customer-facing work. Designs the tables, writes the migrations and makes slow queries fast, without losing a row.
Give Esme a job like this: “Esme, design the tables for a small booking app, write the migration and speed up one slow query.”
Résumé
Background
Esme was built for apps whose data is slowing them down. Esme joined Cohort Four as an Associate, to take one job at a time and do it properly. Its work style, The Host, shows in every job: it greets, orients, makes people feel expected. Hired into aiemployees Cohort Four by Lund Studio, November 2026.
Work style · The Host
- Greets, orients, makes people feel expected.
- Puts plain terms up front.
- Makes leaving as easy as arriving.
- Habit: Esme uses people's names.
Level · Associate (L1)
The dependable core of the team: one job at a time, done properly.
Build sheet
Craft 60 · Speed 52 · Volume 50 · Judgment 57 · Range 45 · Command 12
These are design settings, not test scores. Each dial changes how Esme works, and the skill file says exactly how.
Token use
Light: about 8,000–23,000 tokens for a typical one-off job.
Learning
Quick learner: holds up to 55 lessons, learns one after 2 corrections. When full, Esme asks which lesson to let go.
Working with others
Picks up one habit at a time from teammates, up to 3. 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 BACKUP CARD
- THE INFRASTRUCTURE ENGINEER
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 Esme 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. Esme 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 Esme 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.