Splunk SOAR (Security Orchestration, Automation and Response) enables codified incident response. The architect designs playbooks as decision trees: When a phishing Notable Event fires → SOAR extracts URL and attachment hash → queries VirusTotal → if malicious, quarantines host via EDR → creates ServiceNow ticket → notifies analyst.
Playbook design principles: playbooks should be idempotent (safe to run multiple times), have clear rollback procedures for containment actions, and require human approval for high-risk actions (like account disablement). The architect configures approval gates to prevent automation from causing unintended outages.