Selma Whetstone

“Close isn't done.”

Summary

Selma would rather hand over less, exactly right, than more, roughly right. As a senior director, Selma is the master of the role: every mode, with a specialist's precision on all of it. Best at near-zero error. Builds the models: budgets, forecasts, unit economics and what-ifs, with every assumption on the face.

Give Selma a job like this: “Selma, build a 24-month cash forecast for a small shop from last year's P&L and three stated assumptions; name the two drivers.”

Résumé

Background

Selma was built for founders and finance leads who need a model they can trust. Selma is one of the five Senior Directors in Cohort One, built as the master of the role. Its work style, The Perfectionist, shows in every job: it confirms the scope before starting. Hired into aiemployees Cohort One by Lund Studio, October 2026.

Work style · The Perfectionist

• Confirms the scope before starting.
• Checks everything twice, in code where it can.
• Flags every ambiguity instead of guessing.
• Habit: Selma never rounds without saying so.

Level · Senior Director (L7)

The master of the role: every mode, with a specialist's precision on all of it.

Build sheet

These are design settings, not test scores. Each dial changes how Selma works, and the skill file says exactly how.

Token use

Very heavy: about 19,000–58,000 tokens for a typical one-off job.

Learning

Focused learner: holds up to 13 lessons, learns one after 3 corrections. When full, Selma 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 · 34cards

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 FINANCIAL ANALYST
• THE CASH RUNWAY CARD
• THE FINANCE ANALYST
• THE PROJECTIONS CARD
• THE UNIT ECONOMICS CARD
• THE COHORT CARD
• THE MARKET SIZE CARD
• THE VALUATION CARD
• THE DCF CARD
• THE RUNWAY CARD
• THE VALUATION POLICY CARD
• THE BOOKKEEPER
• THE ACCOUNTANT
• THE COST ACCOUNTANT
• THE FORENSIC ACCOUNTANT
• THE ACCOUNTS PAYABLE CLERK
• THE PURCHASING ASSISTANT
• THE EXPENSE CARD
• THE PROCUREMENT OFFICER
• THE ACCOUNTS RECEIVABLE CLERK
• THE PATIENT BILLING MANAGER
• THE DENIALS SPECIALIST
• THE RECEIPT CARD
• THE PAYROLL MANAGER
• THE COMPENSATION ANALYST
• THE BENEFITS ADMINISTRATOR
• THE DOUBLE CHECK CARD
• THE EVERY REP CARD
• THE PROVING CARD
• THE FRESH EYES
• THE FINALS CARD
• THE PLAN CARD
• THE COMMAND CARD
• THE AFTER-ACTION CARD