Product idea generation and business validation specialist. Use when brainstorming ideas, validating business concepts, analyzing market opportunities, or evaluating product-market fit. Triggers on "idea generation", "business validation", "market analysis", "competitive research".

Product Requirements Document creation and feature specification writing. Use when writing PRDs, technical specs, feature documentation, or requirements. Triggers on "PRD", "product requirements", "feature spec", "technical requirements", "functional spec".