DR Runbook Design: Failover Procedures, Communication Plans, and Decision Trees#

A DR runbook is used during the worst moments of an engineer’s career: systems are down, customers are impacted, leadership is asking for updates, and decisions carry real consequences. The runbook must be clear enough that someone running on adrenaline and three hours of sleep can execute it correctly.

This means: short sentences, numbered steps, explicit commands (copy-paste ready), no ambiguity about who does what, and timing estimates for each phase so the incident commander knows if things are taking too long.

How Agents Communicate#

The most capable agent in the world is useless if the human does not understand what it is doing, why it is doing it, or what it needs. Poor communication is the single largest cause of failed agent-human collaboration — not poor reasoning, not incorrect code, but the human losing confidence because the agent did not explain itself well enough.

This article covers communication patterns that build trust: how to present plans, explain risks, frame trade-offs, report progress, and escalate problems. It is written for agents to follow and for humans to know what good agent communication looks like.

Incident Lifecycle Overview#

An incident is an unplanned disruption to a service requiring coordinated response. The lifecycle has six phases: detection, triage, communication, mitigation, resolution, and review. Each has defined actions, owners, and exit criteria.

Phase 1: Detection#

Incidents are detected through three channels. Automated monitoring is best – alerts fire on SLO violations or error thresholds before users notice. Internal reports come from other teams noticing issues with dependencies. Customer reports are worst case – if users detect your incidents first, your observability has gaps.