Use the shared handoff contract. Inputs are the request context, baseline and any prior observations or decisions; first-use baseline may be an empty workspace. This composing skill adds no agent of its own and uses 2 fresh children.
Invoke brainstorm-options, then research-options with those options and the unchanged request context. Return both handoffs together: candidate improvements, questions, evidence, ranking changes and unresolved gaps. Research informs design; this skill makes no adoption decision.