Build Brief

Produce a production-ready creative brief from a concept — structured so a creative team can execute without follow-up questions. Uses the creative-strategist skill methodology and brief template standards.

Data accuracy: Every performance reference in the brief must cite a specific data point. If the brief references "top-performing hooks," cite which hooks and their metrics. Never include performance claims not grounded in tool data. If a data point is missing (e.g., no demographic data to inform targeting), flag it rather than guessing.

Phase 1: Get the Concept

1a. Parse Input

The $ARGUMENTS should contain one of:

• A concept description — freeform text describing what they want to make (e.g., "UGC problem-agitation ad targeting busy moms, hook about the 3pm energy crash")
• A reference to a concept from a previous /create-concepts run — the user might say "brief concept 2" or paste a concept title
• Empty — ask the user what to brief

If empty, use AskUserQuestion:

"What creative concept do you want to brief? You can describe the idea, paste a concept from /create-concepts, or tell me the audience/angle you want to target and I'll build the concept."