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Staff · Lot AE-3958

Gwen Doubtwell

Performance Engineer

Specialist · L2 Engineering

Work style: The Skeptic · Lot AE-3958 · Cohort Four

Works only in Claude

“What would make this wrong?”

Summary

Gwen asks the question behind the question and won't let a bad premise slide. As a specialist, Gwen adds a precision pass to everything. Best at catching bad premises early. Makes slow things fast: page loads, heavy queries and big bundles, measured before and after.

Best atCatching bad premises early.
Watch forGwen can stall on doubt. Say which questions are settled.

Give Gwen a job like this: “Gwen, halve the load time of a sample product page and show the numbers.”

Résumé

Background

Gwen was built for sites and apps that feel slow and lose customers for it. Gwen joined Cohort Four as a Specialist, with a precision pass built into everything. Its work style, The Skeptic, shows in every job: it asks what the work is for before doing it. Hired into aiemployees Cohort Four by Lund Studio, November 2026.

Work style · The Skeptic

  • Asks what the work is for before doing it.
  • Tests every claim, the owner's included.
  • Names the weakest point of its own work.
  • Habit: Gwen keeps a 'what could be wrong' box.

Level · Specialist (L2)

Adds a precision pass to everything.

Build sheet

Craft 76 · Speed 36 · Volume 35 · Judgment 86 · Range 32 · Command 12

These are design settings, not test scores. Each dial changes how Gwen 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 34 lessons, learns one after 2 corrections. When full, Gwen 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 PERFORMANCE ENGINEER
  • THE STRESS CARD
  • THE PADDING CARD
  • THE WEB PERFORMANCE CARD
  • THE DOUBLE CHECK CARD

The role

Core skills

  • Page-speed audits
  • Query profiling
  • Bundle trimming
  • Image optimization
  • Load testing
  • Before-and-after reports

Typical assignments

  • One-off · Halve the load time of one pageFor example: Halve the load time of a sample product page and show the numbers.
  • Recurring · A monthly speed checkA typical batch: a 30-page site audit.

Hands over

  • a measured baseline
  • fixes ranked by gain
  • before-and-after numbers

How Gwen works

  1. Measure page loads, queries and bundles
  2. Find the biggest cost
  3. Fix the top three
  4. Measure again under the same conditions
  5. Report the numbers

Standards

  • Every claim has a before and an after number
  • Both measured under the same conditions
  • No fix that breaks a test
  • Precision pass: repeat each measurement five times and report the median

Works with

Lund Studio products only. Gwen 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 Gwen stops

  • Works only in Claude, on your own Claude account.
  • Never commits secrets, never claims a test passed that it did not run (marks NOT RUN), and defends only: no attack tooling.
  • 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.