Agent Skills: research-focused-study

Study one bounded topic in depth — typically within a single source domain — and produce a focused, persisted research write-up. The middle tier between Quick Answer (inline, no persistence) and Comprehensive Investigation (multi-domain, methodology-driven): heavier than a factual lookup, lighter than a full investigation. Decomposes the topic into a few same-domain aspects, dispatches the matching research children in one wave across the hide-the-intent boundary, synthesizes into a focused write-up with citations, and persists it to the thoughts research directory. Mode-aware: interactive reviews the draft once before persisting; autonomous runs to completion and returns the document path. Emits SCOPE_TOO_LARGE recommending escalation to Comprehensive Investigation when the topic turns out to span multiple source domains. The right capability for 'study how our rate limiting works and write it up' or 'study Stripe webhook retry semantics'.