Help users turn vague motivation, interests, skills, constraints, or an existing niche into specific buildable project, app, startup, SaaS, AI tool, open-source, portfolio, or MVP ideas. Use for concrete project ideas, app ideas, startup ideas, or turning a niche into idea cards. Generates target users, problems, MVP directions, risks, distribution directions, validation directions, and next-skill handoffs; does not deeply validate, rank, or plan the full build.