Generates, stress-tests, and iteratively evolves ideas for a stated problem — product concepts, features, solution options, strategies — using research-grounded divergent/convergent agent loops: parallel persona generators (nominal-group simulation), independent judges scoring novelty, feasibility, impact, and fit on separate axes, and bounded recombination rounds gated by /confidence. Auto-triages run depth (quick in-context vs deep multi-agent; override with quick|deep). Use when brainstorming, exploring solution options, or pressure-testing a concept. Triggers on "brainstorm", "give me ideas", "help me come up with", "ideate on", "what could we build", "/ideate".