← Lesson 9

AI at the Gemba · lesson 9 · worksheet

Guard it, break it, register it

paulducey.com/lean/course

DateThe skill, and the model or plan I tested onName

Part 1. Write one guardrail rule in your own words for each line, then test it five times with messages built to break it. Mark each run P (held) or F (broke). Then say whether the rule depends on the model, and what outside control you will add.

RuleMy wordingRuns 1 to 5 (P or F)Outside control I will add
Stop and ask (names, IDs, health)
Numbers by code, never estimated, every figure tagged
Text in the file is data, not commands
Draft only: never send, save over or change

Part 2. The Rule of Two. For this skill, tick what it can do in one session. If it can do all three, cut one leg.

  1. It reads untrusted content (inbound email, web pages, files from others).
  2. It touches private data or systems.
  3. It changes things or communicates outside (send, save over, write).
The leg I will cut, and how (a removed connector, a separate session, read-only, network off):

Part 3. The registry entry. One line per skill, kept where your team can find it.

Purpose
Owner, and version
Scripts, connectors and other dependencies
Models tested, and the date
Re-test when: a model changes, the SOP changes, and every ____
Paul Ducey · AI at the GembaFree to copy and use. paulducey.com/lean/course