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8D Root Cause Analysis — Data-Driven Control System Investigation
Use this skill when performing root cause analysis on incidents in battery energy storage systems (BESS) and industrial control systems. Triggers include: any mention of 'root cause', 'RCA', '8D', 'incident analysis', 'fault analysis', 'error investigation', 'correlated events', 'anomaly detection', or when a user provides an Array ID, timestamp, and error data point for investigation. This skill follows the 8D (Eight Disciplines) methodology adapted for data-driven analysis of control system incidents. It integrates with AWS Athena for querying telemetry, metadata, and configuration data. No source code analysis is performed — all investigation is conducted through operational data, device metadata, and optionally XML configuration files that describe device relationships and system topology.