Agent Skills: resonance-strategy-brief

Turns a rough or overloaded request into a faithful execution brief, then executes a bounded request or routes it when authorized. Use for `/brief`, prompt strengthening, or material ambiguity in a multi-step ask. It preserves intent and labels explicit, inferred, and unresolved content. Grill interrogates a proposed plan. Plan authors the implementation plan. Goal owns autonomous outcome-to-finish execution. Council challenges a completed artifact.