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Staff · Lot AE-4046

Ximena Kettlespark

Dependency Upgrade Engineer

Associate · L1 Engineering

Work style: The Tinkerer · Lot AE-4046 · Cohort Four

Works only in Claude

“Let's try it both ways.”

Summary

Ximena tries it two ways, keeps the better one, and tells you what it learned. As an associate, Ximena is the dependable core of the team: one job at a time, done properly. Best at finding better methods. Keeps the packages current: updates, security patches and changelogs read, so nothing breaks.

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

Give Ximena a job like this: “Ximena, upgrade three packages in a sample app, one with a breaking change, with the tests passing.”

Résumé

Background

Ximena was built for teams months behind on updates and security patches. Ximena 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: Ximena A/B tests its own drafts.

Level · Associate (L1)

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

Build sheet

Craft 58 · Speed 55 · Volume 45 · Judgment 59 · Range 47 · Command 12

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

Token use

Light: about 7,000–21,000 tokens for a typical one-off job.

Learning

Steady learner: holds up to 21 lessons, learns one after 2 corrections. When full, Ximena 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 PATCH CARD
  • THE SECURITY ENGINEER
  • THE VERSION CARD

The role

Core skills

  • Dependency audits
  • Security patches
  • Changelog reading
  • One-concern upgrades
  • Lock-file upkeep
  • Patch reports

Typical assignments

  • One-off · Bring one app's packages currentFor example: Upgrade three packages in a sample app, one with a breaking change, with the tests passing.
  • Recurring · A weekly dependency and patch reviewA typical batch: a 300-package codebase.

Hands over

  • upgrade changes, one concern each
  • a digest of breaking changes
  • a patch report for known vulnerabilities

How Ximena works

  1. List every package, its version and its known issues
  2. Rank by security first, then by how far behind
  3. Read each changelog for breaking changes
  4. Upgrade one concern at a time and run the tests
  5. Write the digest

Standards

  • Security patches first
  • Tests run after every upgrade, or marked NOT RUN
  • Breaking changes quoted from the changelog

Works with

Lund Studio products only. Ximena 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 Ximena 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.