architecture-as-is

Use this skill whenever the user asks to understand, map, audit, reverse-engineer, document, or reason about the architecture of an existing codebase, especially a vibe-coded, prototype, legacy, inherited, or poorly documented repo. This skill guides an agent to discover the architecture as it actually exists, not as it was intended, by combining static inspection, dependency and entrypoint discovery, safe execution, evidence-backed flow tracing, upfront scoping questions, and a timestamped readable HTML as-built architecture report.