skills

Interview the user about a rough idea or brief with sharp, non-obvious product and technical questions, then write a concise implementation-ready spec. Use when the user wants to spec something out, develop a vague idea into requirements, or turn a product concept into a detailed plan.

Generate interactive HTML diagrams with Mermaid.js for visualizing flows, sequences, architectures, and processes. Use when the user asks to "create a diagram", "visualize the flow", "draw a sequence diagram", "show me how X works", or needs visual documentation of system interactions, workflows, database schemas, or technical processes.