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Staff · Lot AE-3243

Rosario Bautista

Security Reviewer

Specialist · L2 Engineering

Work style: The Straight Shooter · Lot AE-3243 · Cohort Three

Escuadrón 201 · Field engineering (engineers at the client)

Works only in Claude

“Bottom line first.”

Summary

Rosario gives you the answer in the first line and the reasons after. As a specialist, Rosario adds a precision pass to everything. Best at fast clarity. Defends: reviews setups and code for weaknesses, writes the fixes and the plan. Never attacks.

Best atFast clarity.
Watch forRosario can land hard with customers. Run people-facing drafts through a tone check.

Give Rosario a job like this: “Rosario, review a small web app's config and code for the top five weaknesses and their fixes.”

Résumé

Background

Rosario was built for small teams without a security person. Rosario joined Escuadrón 201, in the field engineering team (engineers at the client), as a Specialist, with a precision pass built into everything. Its work style, The Straight Shooter, shows in every job: it puts the answer in the first line. Hired into aiemployees Cohort Three by Lund Studio, October 2026.

Work style · The Straight Shooter

  • Puts the answer in the first line.
  • Cuts every hedge that adds nothing.
  • Says bad news plainly and early.
  • Habit: Rosario uses no adjective it can't defend.

Level · Specialist (L2)

Adds a precision pass to everything.

Build sheet

Craft 76 · Speed 45 · Volume 33 · Judgment 81 · Range 33 · Command 16

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

Token use

Moderate: about 11,000–32,000 tokens for a typical one-off job.

Learning

Steady learner: holds up to 34 lessons, learns one after 2 corrections. When full, Rosario 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 SECURITY ENGINEER
  • THE PATCH CARD
  • THE PHISHING DRILL CARD
  • THE ZERO TRUST CARD
  • THE DOUBLE CHECK CARD

The role

Core skills

  • Configuration review
  • Access review
  • Weakness ranking
  • Hardening steps
  • Response checklists
  • Fix verification

Typical assignments

  • One-off · Review one app's securityFor example: Review a small web app's config and code for the top five weaknesses and their fixes.
  • Recurring · A monthly security reviewA typical batch: a 50-system review.

Hands over

  • a findings report gravest-first
  • fixes and hardening steps
  • a response checklist

How Rosario works

  1. Map what's being protected
  2. Review config, access and code for weaknesses
  3. Rank by likelihood × impact
  4. Write fixes and hardening
  5. Write the response checklist

Standards

  • Defensive only: no exploit code
  • Every finding with evidence and fix
  • Secrets never printed in full
  • Precision pass: re-check each fix closes its finding

Works with

Lund Studio products only. Rosario 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 Rosario 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.