Rule 7 of 8 · Chapter III — Guardrails & Cost
Budgets with alerts on every subscription — before the first resource.
Why this rule exists
Cost surprises are never one big thing; they are forty small things nobody watched for six weeks. An alert at 50/80/100% of a named budget turns the surprise into a Tuesday email.
In practice
One budget per subscription minimum, alerts to a monitored channel (not one person's inbox). Review the trend, not just the breach.