Transform project requirements, problems, user stories, or rough ideas into Simon Brown's C4 architecture diagrams — System Context (C1), Containers (C2), and Components (C3). Conducts adaptive Q&A, emits Unicode box-drawing ASCII diagrams inline, and optionally saves Mermaid versions to disk. Incorporates light DDD Strategic Design vocabulary (bounded context, ubiquitous language, context map, subdomain triage) with inline plain-English glosses so users unfamiliar with DDD still understand. Invoke this skill when the user asks to design, architect, diagram, model, or transform requirements into a system design, or mentions "C4" explicitly. Stops deliberately at each phase boundary for user confirmation. Code-level diagrams (C4 Level 4) are out of scope — defer to UML/class-diagram skills or trained knowledge for that level.
2026-04-15