New Feature Investigation

Investigative Q&A workflow that turns a fuzzy feature request into a fully-specified design before any code is written. Research the relevant code + current (as-of-today) best practices first, then surface every ambiguous design decision as categorized questions with [REC]-marked default options, locking decisions as the user confirms. Leave zero ambiguous areas before transitioning to planning. Use this skill whenever the user proposes a new feature, capability, significant refactor, or any non-trivial change — even if they don't explicitly ask for design questions. Trigger phrases include "new feature", "design / scope / plan a feature", "add capability", "analyze optio…