YPF1016696863

Use when starting a new software, SaaS, AI product, internal tool, data platform, automation system, or major greenfield module and the user wants architecture documents, PRD, data model, API contracts, AI automation specs, or implementation readiness before code.

Use when the user explicitly asks to choose, compare, route, or switch AI models; when model fit is material to a high-risk task; when moving between major phases such as architecture, implementation, debugging, or review; or when available models, /model, model selector, speed, cost, long-context, coding, reasoning, or vision tradeoffs are central to the request.