Exercise 3: Why Preconditions Connect Directly to remote1's Own Material — Possible Solution ==================================================================== WHAT remote1's OWN MATERIAL ESTABLISHED ------------------------------ Per this chapter, preconditions connect "directly to remote1's own material on working safely on a system you don't own - confirming you are actually on the correct system, and that you have the access and authorization the procedure needs." That course built an entire chapter around the risk of acting on the wrong system, or without properly confirmed authorization, before doing anything else. WHY THIS IS THE SAME UNDERLYING RISK, JUST ENCOUNTERED VIA A DIFFERENT DOCUMENT ------------------------------ remote1's own material was about a technician's own judgment and habits when connecting to a system directly. This chapter's own concern is structurally identical, just approached through a runbook instead: if a runbook doesn't explicitly force the reader to confirm they're on the right host and have the right access before step 1, the exact same failure mode remote1 warned about can happen anyway - just triggered by following a document rather than by a technician's own unprompted habit. WHY THIS MEANS A RUNBOOK CAN'T JUST ASSUME GOOD JUDGMENT WILL CATCH IT ------------------------------ remote1 taught the underlying discipline as a general practice a technician should already have. But per this chapter's own reasoning, "skipping [preconditions] properly is a common way a runbook goes wrong before step 1 even happens" - meaning even a technician who generally has good habits can skip that check specifically because the runbook itself didn't explicitly require it as a formal first section. The precondition section exists precisely to not rely on the reader independently remembering to apply remote1's own lesson every single time. WHY THIS TIES BACK TO CHAPTER 1's OWN OPENING SCENARIO ------------------------------ Chapter 1's own outage scenario involved a step referencing a decommissioned hostname - a failure that, arguably, a strong precondition check (confirming the target system is genuinely current and correct before proceeding) might have caught earlier in the process, rather than discovering the problem mid-procedure. WHY THIS WORKS AS AN ANSWER ------------------------------ It restates what remote1's own material established, explains why this chapter's precondition requirement addresses the identical underlying risk rather than a coincidentally similar one, and explains why formalizing it as an explicit runbook section matters even for a technician who already knows the general principle.