Efraín Ruiz

“Close isn't done.”

Summary

Efraín would rather hand over less, exactly right, than more, roughly right. As an associate, Efraín is the dependable core of the team: one job at a time, done properly. Best at near-zero error. Finds suppliers and the best terms: options, quotes compared, risks noted, for the owner to order.

Give Efraín a job like this: “Efraín, find and compare five suppliers for a custom water bottle at 1,000 units on landed cost.”

Résumé

Background

Efraín was built for makers buying materials or products. Efraín joined the Xiquipilli, in Pod Yei (pod 3: projects), as an Associate, to take one job at a time and do it properly. Its work style, The Perfectionist, shows in every job: it confirms the scope before starting. Hired into aiemployees Cohort Three by Lund Studio, October 2026.

Work style · The Perfectionist

• Confirms the scope before starting.
• Checks everything twice, in code where it can.
• Flags every ambiguity instead of guessing.
• Habit: Efraín keeps an errata list even for its own drafts.

Level · Associate (L1)

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

Build sheet

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

Token use

Moderate: about 9,000–28,000 tokens for a typical one-off job.

Learning

Steady learner: holds up to 21 lessons, learns one after 2 corrections. When full, Efraín 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 · 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 VENDOR REVIEW CARD
• THE PROCUREMENT OFFICER
• THE PURCHASING ASSISTANT