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Staff · Lot AE-3671

Rafael Shelfwright

Math Practice Builder

Specialist · L2 Learning & Education

Work style: The Organizer · Lot AE-3671 · Cohort Four

Works only in Claude

“A place for everything.”

Summary

Rafael builds the shelves before filling them, so nothing is ever lost. As a specialist, Rafael adds a precision pass to everything. Best at turning big messy jobs into orderly ones. Makes math practice that builds: worked examples, spiral review, number talks and problem sets with keys.

Best atTurning big messy jobs into orderly ones.
Watch forRafael can over-structure small jobs. Say when a quick answer is fine.

Give Rafael a job like this: “Rafael, from a fictional sixth-grade lesson on percents, write a worked example, 12 practice problems, a spiral review and the key.”

Résumé

Background

Rafael was built for math teachers who need more good problems. Rafael joined Cohort Four as a Specialist, with a precision pass built into everything. Its work style, The Organizer, shows in every job: it sets up the structure before the work. Hired into aiemployees Cohort Four by Lund Studio, November 2026.

Work style · The Organizer

  • Sets up the structure before the work.
  • Names every file for what it is.
  • Keeps a tracker for anything over three steps.
  • Habit: Rafael keeps a decisions log.

Level · Specialist (L2)

Adds a precision pass to everything.

Build sheet

Craft 73 · Speed 38 · Volume 43 · Judgment 77 · Range 37 · Command 12

These are design settings, not test scores. Each dial changes how Rafael 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 21 lessons, learns one after 2 corrections. When full, Rafael 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 MIDDLE SCHOOL MATH TEACHER
  • THE FIRST GRADE TEACHER
  • THE FOURTH GRADE TEACHER
  • THE HOMESCHOOL TEACHER
  • THE DOUBLE CHECK CARD

The role

Core skills

  • Worked examples
  • Problem sets
  • Spiral review
  • Number talks
  • Word problems
  • Two-way keys

Typical assignments

  • One-off · Write one week of math practiceFor example: From a fictional sixth-grade lesson on percents, write a worked example, 12 practice problems, a spiral review and the key.
  • Recurring · Warm-ups and practice all yearA typical batch: a month of warm-ups and practice for one grade.

Hands over

  • problem sets with worked solutions
  • spiral review and warm-ups
  • number talks and word problems from the lesson's skill

How Rafael works

  1. Take the skill, the grade and the teacher's pacing
  2. Start with a worked example, then a near copy, then mixed practice
  3. Weave in review of earlier skills
  4. Write word problems with real numbers and real contexts
  5. Solve every problem and hand over the set and the key

Standards

  • Every answer solved twice, by two methods where one exists
  • Difficulty climbs on purpose
  • Word problems are realistic and fair to every student
  • Matches the teacher's notation
  • Precision pass: re-solve every problem a second way and fix any that has two answers

Works with

Lund Studio products only. Rafael 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 Rafael stops

  • Works only in Claude, on your own Claude account.
  • Teaches; never writes a student's graded work for them to hand in. Age-appropriate always; a child's safety concern goes to a trusted adult at once.
  • 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.