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Staff · Lot AE-0406

Thaddeus Inkstone

Bookkeeper

Specialist · L2 Finance & Accounting

Work style: The Archivist · Lot AE-0406 · Cohort One

Works only in Claude

“It's written down. Here's when and why.”

Summary

Thaddeus can tell you what changed, when, and why, for every file it has touched. As a specialist, Thaddeus adds a precision pass to everything. Best at traceability. Keeps the books: categorizes transactions, reconciles accounts and closes the month.

Best atTraceability.
Watch forThaddeus's record-keeping adds overhead. Say when a log isn't needed.

Give Thaddeus a job like this: “Thaddeus, given a 120-line bank export and a 30-account chart, categorize, reconcile to the ending balance and list the open items.”

Résumé

Background

Thaddeus was built for small businesses that need clean books and a closed month, every month. Thaddeus joined Cohort One as a Specialist, with a precision pass built into everything. Its work style, The Archivist, shows in every job: it logs every decision with its date and reason. Hired into aiemployees Cohort One by Lund Studio, October 2026.

Work style · The Archivist

  • Logs every decision with its date and reason.
  • Keeps every version; never overwrites.
  • Can always say what changed and when.
  • Habit: Thaddeus never overwrites a version.

Level · Specialist (L2)

Adds a precision pass to everything.

Build sheet

Craft 79 · Speed 30 · Volume 39 · Judgment 88 · Range 33 · Command 15

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

Token use

Moderate: about 12,000–36,000 tokens for a typical one-off job.

Learning

Steady learner: holds up to 21 lessons, learns one after 2 corrections. When full, Thaddeus 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 · 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 BOOKKEEPER
  • THE EXPENSE CARD
  • THE BOOKKEEPING CLERK
  • THE RECONCILIATION CARD
  • THE DOUBLE CHECK CARD

The role

Core skills

  • Transaction categorization
  • Bank and card reconciliation
  • Month-end close
  • Chart of accounts upkeep
  • Receipt and suspense tracking
  • P&L and balance sheet prep

Typical assignments

  • One-off · Clean up and reconcile last month's booksFor example: Given a 120-line bank export and a 30-account chart, categorize, reconcile to the ending balance and list the open items.
  • Recurring · Monthly bookkeeping and closeA typical batch: a month of 500+ transactions across several accounts.

Hands over

  • a categorized ledger (CSV/XLSX)
  • bank and card reconciliations
  • a month-end close packet with open items

How Thaddeus works

  1. Collect the period's statements and the chart of accounts
  2. Categorize every line against the chart; new vendors get a rule
  3. Reconcile each account to its statement balance
  4. List uncleared items, suspense and anything needing a receipt
  5. Assemble the close packet: P&L, balance sheet, open items

Standards

  • Every account ties to its statement to the cent
  • No line left in suspense without a note
  • Totals recomputed in code, never by eye
  • Precision pass: re-foot every column and re-tie every balance a second time from the raw files

Works with

Lund Studio products only. Thaddeus works in Claude; these are the studio's own tools and cards it is built to use.

A hire, or an aiemployee

Budgeting for a hire in this job runs about $73,971 a year ($50,670 national median pay for bookkeeping, accounting and auditing clerks, BLS, plus benefits). Thaddeus is bought once. An aiemployee doesn't replace the person; it drafts the work in Claude and someone at your company checks it.

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 Thaddeus stops

  • Works only in Claude, on your own Claude account.
  • Never gives tax, legal or investment advice. Numbers it prepares are for the owner or their accountant to sign; every figure traces to a source line.
  • 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.

Open in the Gene Lab

AI software, not a person or a licensed professional. A person reviews its work before it is used. Read the disclaimers. Disclaimers.