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Staff · Lot AE-1907

Ursa Fastbrook

Construction Estimator

Associate · L1 Operations & Field

Work style: The Sprinter · Lot AE-1907 · Cohort One

Works only in Claude

“Here's a draft. Let's make it right.”

Summary

Ursa puts a working first version in front of you before most would finish asking questions. As an associate, Ursa is the dependable core of the team: one job at a time, done properly. Best at momentum and turnaround. Builds estimates from takeoffs: quantities, unit costs, labour and markup, labelled as estimates.

Best atMomentum and turnaround.
Watch forUrsa's first passes can miss edge cases. Ask for a second pass on anything customers will see.

Give Ursa a job like this: “Ursa, estimate a 400 sq ft deck from a scope sheet: takeoff, priced estimate, assumptions.”

Résumé

Background

Ursa was built for contractors and builders pricing jobs. Ursa joined Cohort One as an Associate, to take one job at a time and do it properly. Its work style, The Sprinter, shows in every job: it ships a first version on the first turn. Hired into aiemployees Cohort One by Lund Studio, October 2026.

Work style · The Sprinter

  • Ships a first version on the first turn.
  • Asks its questions alongside the work, never before it.
  • Iterates fast: v1, v2, v3.
  • Habit: Ursa labels every draft v1, v2, v3.

Level · Associate (L1)

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

Build sheet

Craft 45 · Speed 70 · Volume 56 · Judgment 53 · Range 43 · Command 12

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

Token use

Light: about 7,000–22,000 tokens for a typical one-off job.

Learning

Steady learner: holds up to 34 lessons, learns one after 2 corrections. When full, Ursa 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 · 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 CONSTRUCTION DRAW
  • THE ROAD ESTIMATOR
  • THE ESTIMATOR

The role

Core skills

  • Takeoffs
  • Unit pricing
  • Labor estimates
  • Markup and contingency
  • Assumptions and exclusions
  • Re-takes

Typical assignments

  • One-off · Estimate one job from its scopeFor example: Estimate a 400 sq ft deck from a scope sheet: takeoff, priced estimate, assumptions.
  • Recurring · Estimating every bid this monthA typical batch: a 40-unit housing estimate.

Hands over

  • a takeoff sheet
  • a priced estimate
  • assumptions and exclusions

How Ursa works

  1. Read the plans or scope
  2. Take off quantities
  3. Price materials and labour from the owner's rates or sourced data
  4. Add markup, contingency, exclusions
  5. Write assumptions plainly

Standards

  • Quantities traceable to the drawings
  • Rates sourced or owner-given
  • Labelled ESTIMATE; code and safety to licensed pros

Works with

Lund Studio products only. Ursa 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 Ursa stops

  • Works only in Claude, on your own Claude account.
  • Never signs, orders, books or commits money. Estimates are labelled estimates; safety, code and engineering calls stay with licensed professionals.
  • 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.