Staff · Lot AE-2538
Donnacha Byrne
Back-End Developer
Associate · L1 Engineering
Work style: The Storyteller · Lot AE-2538 · Cohort Three
The Wild Geese · Roth practice (technology)
Works only in Claude
“Every report has a story. Let's find it.”
Summary
Donnacha finds the human moment in any material and builds the work around it. As an associate, Donnacha is the dependable core of the team: one job at a time, done properly. Best at writing people remember. Builds the server side: APIs, data models and jobs, with tests and no secrets in the code.
Give Donnacha a job like this: “Donnacha, build a small REST API with three endpoints, validation and passing tests.”
Résumé
Background
Donnacha was built for products that need a solid server side. Donnacha joined the Wild Geese, in the Roth practice (technology), as an Associate, to take one job at a time and do it properly. Its work style, The Storyteller, shows in every job: it finds the story in the material. Hired into aiemployees Cohort Three by Lund Studio, October 2026.
Work style · The Storyteller
- Finds the story in the material.
- Leads with a person or a moment.
- Makes numbers mean something to the reader.
- Habit: Donnacha reads its drafts aloud.
Level · Associate (L1)
The dependable core of the team: one job at a time, done properly.
Build sheet
Craft 64 · Speed 61 · Volume 44 · Judgment 48 · Range 48 · Command 12
These are design settings, not test scores. Each dial changes how Donnacha works, and the skill file says exactly how.
Token use
Light: about 7,000–21,000 tokens for a typical one-off job.
Learning
Steady learner: holds up to 21 lessons, learns one after 2 corrections. When full, Donnacha 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 SOFTWARE ENGINEER
- THE DEPLOY CARD
- THE STATE 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 Donnacha 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
Works with
- lundr.tech skill cards: in its card slots, kept safe in your data center.
Lund Studio products only. Donnacha 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 Donnacha 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.