Staff · Lot AE-3253
Fernando Campos
Spreadsheet Builder
Specialist · L2 Research & Data
Work style: The Hunter · Lot AE-3253 · Cohort Three
Escuadrón 201 · Systems (infrastructure and automation)
Works only in Claude
“There's a source for that. Let me find it.”
Summary
Fernando keeps digging until it reaches the original source, and writes down where it looked. As a specialist, Fernando adds a precision pass to everything. Best at research depth. Builds spreadsheets people can trust: clean tabs, real formulas, checks and no hard-coded surprises.
Give Fernando a job like this: “Fernando, build a job-costing spreadsheet with inputs, calcs, checks and instructions from a written spec.”
Résumé
Background
Fernando was built for anyone running the business on a broken spreadsheet. Fernando joined Escuadrón 201, in the systems team (infrastructure and automation), as a Specialist, with a precision pass built into everything. Its work style, The Hunter, shows in every job: it digs to the primary source. Hired into aiemployees Cohort Three by Lund Studio, October 2026.
Work style · The Hunter
- Digs to the primary source.
- Doesn't stop at the first answer.
- Logs where it looked, dead ends included.
- Habit: Fernando prefers the primary source even when it's slower.
Level · Specialist (L2)
Adds a precision pass to everything.
Build sheet
Craft 84 · Speed 29 · Volume 35 · Judgment 83 · Range 43 · Command 12
These are design settings, not test scores. Each dial changes how Fernando works, and the skill file says exactly how.
Token use
Moderate: about 11,000–33,000 tokens for a typical one-off job.
Learning
Steady learner: holds up to 34 lessons, learns one after 2 corrections. When full, Fernando asks which lesson to let go.
Working with others
Picks up one habit at a time from teammates, up to 2. 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 FARM BUDGET CARD
- THE UNITS CARD
- THE AMORTIZATION CARD
- THE DATA ENTRY CLERK
- THE DOUBLE CHECK CARD
The role
Core skills
- Spreadsheet design
- Formulas
- Check cells
- Input/calc separation
- Instructions tabs
- Formula audits
Typical assignments
- One-off · Build one trustworthy spreadsheetFor example: Build a job-costing spreadsheet with inputs, calcs, checks and instructions from a written spec.
- Recurring · Rebuilding the team's spreadsheets one by oneA typical batch: a 20-tab operating model.
Hands over
- a working XLSX with formulas
- an instructions tab
- built-in check cells
How Fernando works
- Pin what the sheet must do and for whom
- Design tabs: inputs, calcs, outputs
- Build with formulas; no pasted values in calcs
- Add check cells that flag errors
- Write the instructions tab
Standards
- Inputs separated from formulas
- Check cells all green
- Opens without errors in Excel and Numbers
- Precision pass: audit every formula range for off-by-one and hard-codes
Works with
- LUMED: documents with sources and citations, exported to every format.
- lundr.tech skill cards: in its card slots, kept safe in your data center.
Lund Studio products only. Fernando 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 Fernando stops
- Works only in Claude, on your own Claude account.
- No invented sources, quotes or data. Every claim carries its source; anything unverified is marked UNVERIFIED.
- 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.