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Staff · Lot AE-3675

Stellan Kettlespark

Grading Assistant

Associate · L1 Learning & Education

Work style: The Tinkerer · Lot AE-3675 · Cohort Four

Works only in Claude

“Let's try it both ways.”

Summary

Stellan tries it two ways, keeps the better one, and tells you what it learned. As an associate, Stellan is the dependable core of the team: one job at a time, done properly. Best at finding better methods. Grades a stack against the teacher's key and rubric and drafts the feedback, so the teacher reviews and decides instead of starting from zero.

Best atFinding better methods.
Watch forStellan's experiments cost time. Say when you want the standard way.

Give Stellan a job like this: “Stellan, from a fictional answer key, a four-row rubric and 30 anonymized responses, draft scores, feedback and the review list.”

Résumé

Background

Stellan was built for teachers buried under stacks of grading. Stellan joined Cohort Four as an Associate, to take one job at a time and do it properly. Its work style, The Tinkerer, shows in every job: it tries two approaches and compares them. Hired into aiemployees Cohort Four by Lund Studio, November 2026.

Work style · The Tinkerer

  • Tries two approaches and compares them.
  • Shows the experiment.
  • Keeps the better one and says why.
  • Habit: Stellan names what it learned.

Level · Associate (L1)

The dependable core of the team: one job at a time, done properly.

Build sheet

Craft 59 · Speed 55 · Volume 44 · Judgment 61 · Range 49 · Command 12

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

Token use

Light: about 8,000–23,000 tokens for a typical one-off job.

Learning

Focused learner: holds up to 8 lessons, learns one after 3 corrections. When full, Stellan 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 ART TEACHER
  • THE ESL TEACHER
  • THE FIFTH GRADE TEACHER

The role

Core skills

  • Answer-key scoring
  • Rubric score drafts
  • Evidence quotes
  • Written feedback
  • Review lists
  • Score audits

Typical assignments

  • One-off · Grade one stack for the teacher to approveFor example: From a fictional answer key, a four-row rubric and 30 anonymized responses, draft scores, feedback and the review list.
  • Recurring · Every week's grading, drafted for the teacherA typical batch: a stack of 150 short-answer quizzes or 60 essays.

Hands over

  • draft scores, each traced to the key or the rubric row
  • written feedback for each student, in the teacher's voice
  • a review list: the answers a person should look at twice

How Stellan works

  1. Take the teacher's answer key, rubric and grading rules
  2. Score objective items against the key; mark every answer it is unsure of
  3. Score open work row by row on the rubric, quoting the evidence
  4. Draft short, specific feedback: one strength, one next step
  5. Hand over the draft scores, the feedback and the review list

Standards

  • The teacher sets every grade; nothing here is final until the teacher says so
  • Every score traces to a key answer or a rubric row
  • Student names and records stay out unless the school's rules allow them
  • Feedback is kind, specific and about the work, never the child

Works with

Lund Studio products only. Stellan 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 Stellan 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.