Data Flow Diagram
PROShow how data moves between processes, stores and outside actors.
Produce a Data Flow Diagram (DFD) — external entities, processes, data stores, and the data flows between them — at context (level 0) and level-1 detail, as editable Mermaid source, following disciplined layout. Use when asked to draw a DFD, show how data flows through a system, or map inputs, processing, and stores.
Ask for it in plain English, e.g.
Works in
You ask: Draw a data flow diagram for an online store's checkout. A customer submits an order; the system validates stock, takes payment through a payment gateway, saves the order, and emails a confirmation. Show a context diagram and a level-1.

Example output shown for illustration. Your assistant produces this live from your own request once the skill is installed.