Track how data moves through architectural services and storage points to find leakage risks. Use this skill whenever the user mentions data flow diagram, dfd, data lineage, leakage risk, sink analysis, taint, data exposure path, or is working with Mermaid, PlantUML, OpenTelemetry, even if they never say "data flow diagram (dfd) analysis" explicitly. Operates entirely on context the agent already has. Do not use it for unrelated application feature work or general coding questions.
